技术领域technical field
本发明涉及触控技术领域，尤其涉及电容式触摸结构、内嵌式触摸屏、以及显示装置及其扫描方法。The invention relates to the field of touch technology, in particular to a capacitive touch structure, an embedded touch screen, a display device and a scanning method thereof.
背景技术Background technique
随着显示技术的飞速发展，触摸屏(Touch Screen Panel)已经逐渐遍及人们的生活中。目前，触摸屏包括的触摸结构可以分为：互电容触摸结构和自电容触摸结构。对于自电容触摸结构，由于其触控感应的准确度和信噪比比较高，因而受到了各大面板厂家青睐。With the rapid development of display technology, touch screen panels (Touch Screen Panels) have gradually spread in people's lives. At present, the touch structures included in the touch screen can be divided into: a mutual capacitance touch structure and a self-capacitance touch structure. As for the self-capacitance touch structure, due to its high accuracy of touch sensing and relatively high signal-to-noise ratio, it is favored by major panel manufacturers.
目前，自电容触摸结构利用自电容的原理实现检测手指触摸位置，具体为：在触摸结构中设置多个同层设置且相互绝缘的自电容电极，当人体未触碰屏幕时，各自电容电极所承受的电容为一固定值，当人体触碰屏幕时，触碰位置对应的自电容电极所承受的电容为固定值叠加人体电容，触控侦测芯片在触控时间段通过检测各自电容电极的电容值变化可以判断出触控位置。At present, the self-capacitance touch structure uses the principle of self-capacitance to detect the touch position of the finger. Specifically, a plurality of self-capacitance electrodes arranged on the same layer and insulated from each other are set in the touch structure. The capacitance to bear is a fixed value. When the human body touches the screen, the capacitance of the self-capacitance electrode corresponding to the touch position is a fixed value and the capacitance of the human body is superimposed. The touch detection chip detects the capacitance of each capacitance electrode during the touch period. The change of the capacitance value can determine the touch position.
在自电容触摸结构中，每一个自电容电极需要通过单独的引出线与触控侦测芯片连接，如图1a和图1b所示，每条引出线具体包括：将自电容电极1连接至触摸屏的边框处的导线2，以及设置在边框处用于将自电容电极1导通至触控侦测芯片的接线端子3的周边走线4；其中，在图1a中，导线2和自电容电极1同层设置；而在图1b中，自电容电极1和导线2异层设置，且自电容电极1与对应的导线2通过过孔5电性连接。In the self-capacitance touch structure, each self-capacitance electrode needs to be connected to the touch detection chip through a separate lead-out line, as shown in Figure 1a and Figure 1b, each lead-out line specifically includes: connecting the self-capacitance electrode 1 to the touch screen The wire 2 at the frame of the frame, and the peripheral wiring 4 arranged at the frame for conducting the self-capacitance electrode 1 to the connection terminal 3 of the touch detection chip; wherein, in FIG. 1a, the wire 2 and the self-capacitance electrode 1 are arranged on the same layer; while in FIG.
而且，在具体实施时，自电容电极的数量会非常多，以每个自电容电极的所占面积为5mm*5mm为例，5寸的液晶显示屏就需要264个自电容电极，若将每个自电容电极设计的更小一些，则会有更多的自电容电极，使得与自电容 电极连接的导线数量非常多，从而会造成一些问题，比如，导线数量多会使得设置在边框处的与导线一一对应连接的周边走线数量也会非常多，不利于窄边框设计；或者，在导线和自电容电极同层设置时，导线数量多会造成触控盲区比较大。And, in concrete implementation, the quantity of self-capacitance electrode can be very much, be 5mm*5mm as example with the occupied area of each self-capacitance electrode, 5 inches liquid crystal screen just needs 264 self-capacitance electrodes, if each If the self-capacitance electrode design is smaller, there will be more self-capacitance electrodes, so that the number of wires connected to the self-capacitance electrodes is very large, which will cause some problems. There will also be a large number of peripheral traces connected to the wires in one-to-one correspondence, which is not conducive to the narrow frame design; or, when the wires and self-capacitance electrodes are arranged on the same layer, the large number of wires will cause a relatively large touch blind area.
综上所述，目前，自电容触摸结构中的自电容电极的数量非常多，使得与自电容电极连接的导线数量也非常多，从而会造成不利于窄边框设计和触控盲区比较大等问题。To sum up, at present, the number of self-capacitance electrodes in the self-capacitance touch structure is very large, so that the number of wires connected to the self-capacitance electrodes is also very large, which will cause problems such as unfavorable narrow frame design and relatively large touch blind area. .
发明内容Contents of the invention
本发明实施例提供了一种电容式触摸结构、内嵌式触摸屏、以及显示装置及其扫描方法，用以减少自电容触摸结构中的导线数量，以在一定程度上减小不利于窄边框设计和触控盲区比较大等问题发生的概率。Embodiments of the present invention provide a capacitive touch structure, an in-cell touch screen, a display device and a scanning method thereof, which are used to reduce the number of wires in the self-capacitance touch structure, so as to reduce to a certain extent the unfavorable narrow frame design. The probability of problems such as relatively large touch blind areas.
本发明实施例提供的具体技术方案如下：The specific technical scheme that the embodiment of the present invention provides is as follows:
第一方面，本发明实施例提供一种电容式触摸结构，应用于触摸屏，包括：In the first aspect, an embodiment of the present invention provides a capacitive touch structure applied to a touch screen, including:
多个同层设置且相互绝缘的呈矩阵式排布的自电容电极，分别位于所述自电容电极所在膜层表面包含的至少两个区域内；A plurality of self-capacitance electrodes arranged in a matrix arranged in the same layer and insulated from each other are respectively located in at least two regions included on the surface of the film layer where the self-capacitance electrodes are located;
位于每个所述区域内的区域电极，与所述自电容电极同层设置，且与所述自电容电极相互绝缘；其中，当对所述电容式触摸结构进行触控操作，且触控位置为一区域内的任意位置时，所述区域的区域电极的电容值会发生变化；The regional electrodes located in each of the regions are arranged on the same layer as the self-capacitance electrodes, and are insulated from the self-capacitance electrodes; wherein, when the touch operation is performed on the capacitive touch structure, and the touch position When it is any position in an area, the capacitance value of the area electrode of the area will change;
与所述自电容电极电性连接的多条互不交叉的第一导线；其中，至少存在多条所述第一导线满足：一条所述第一导线与至少两个自电容电极电性相连，且所述至少两个自电容电极各自分别位于不同区域内；A plurality of non-intersecting first wires electrically connected to the self-capacitance electrodes; wherein, there are at least a plurality of the first wires satisfying: one of the first wires is electrically connected to at least two self-capacitance electrodes, And the at least two self-capacitance electrodes are respectively located in different regions;
与所述区域电极电性连接的多条互不交叉的第二导线，其中，位于各区域内的所述区域电极电性相连的所述第二导线不同；A plurality of non-intersecting second wires electrically connected to the regional electrodes, wherein the second wires electrically connected to the regional electrodes located in each region are different;
与所述第一导线和第二导线电性相连且用于在触摸扫描时间内通过检测各所述自电容电极和区域电极的电容值变化以判断触控位置的触控侦测芯片。The touch detection chip is electrically connected with the first wire and the second wire and is used for determining the touch position by detecting the capacitance value change of each of the self-capacitance electrodes and the area electrodes during the touch scanning time.
在本发明实施例中，与现有技术中各导线电性相连一个自电容电极的方案相比，在本发明实施例中，将自电容电极所在膜层表面划分为至少两个区域，自电容电极分别位于所述至少两个区域内，且至少存在多条第一导线满足：一条所述第一导线与各自分别位于不同区域内的至少两个自电容电极电性相连，从而使得在自电容电极数量不变的情况下，大量减少与自电容电极连接的导线数量；在划分出的每个所述区域内新增加区域电极，各区域内的所述区域电极电性相连的第二导线不同，由于与自电容电极的个数相比，划分出的所述区域的个数非常少，从而使得增加的与区域电极连接的导线数量也非常少；因此，总的来说，本发明中的导线数量减少了，从而能够在一定程度上减小不利于窄边框设计和触控盲区比较大等问题发生的概率。In the embodiment of the present invention, compared with the scheme in the prior art where each wire is electrically connected to a self-capacitance electrode, in the embodiment of the present invention, the surface of the film layer where the self-capacitance electrode is located is divided into at least two regions, and the self-capacitance The electrodes are respectively located in the at least two areas, and there are at least a plurality of first wires satisfying that: one of the first wires is electrically connected to at least two self-capacitance electrodes respectively located in different areas, so that in the self-capacitance Under the condition that the number of electrodes remains unchanged, the number of wires connected to the self-capacitance electrodes is greatly reduced; new regional electrodes are added in each of the divided regions, and the second wires electrically connected to the regional electrodes in each region are different. , because compared with the number of self-capacitance electrodes, the number of the divided regions is very small, so that the number of wires connected to the regional electrodes is also very small; therefore, in general, the present invention The number of wires is reduced, which can reduce the probability of problems such as unfavorable narrow bezel design and relatively large touch blind area to a certain extent.
在本发明实施例中，当触碰到的自电容电极相连的第一导线仅与该自电容电极电性相连，触控侦测芯片根据该第一导线上的信号变化即可以判断在该自电容电极所在的位置发生了触控；而当触碰到的自电容电极相连的第一导线与至少两个自电容电极电性相连，由于所述至少两个自电容电极各自分别位于不同区域内，每个所述区域内设置有区域电极，各区域内的所述区域电极电性相连的第二导线不同，因此，触控侦测芯片根据与区域电极电性相连的第二导线上的信号变化来判断在哪个所述区域发生触控，并结合与自电容电极电性相连的第一导线上的信号变化来进一步判断在哪个具体位置发生触控，避免误判，实现触控感应的准确性。In the embodiment of the present invention, when the first wire connected to the touched self-capacitance electrode is only electrically connected to the self-capacitance electrode, the touch detection chip can judge the current state of the self-capacitance electrode according to the signal change on the first wire. The position where the capacitive electrode is located is touched; and when the first wire connected to the touched self-capacitive electrode is electrically connected to at least two self-capacitive electrodes, since the at least two self-capacitive electrodes are respectively located in different areas Each region is provided with regional electrodes, and the second wires electrically connected to the regional electrodes in each region are different. Therefore, the touch detection chip according to the signal on the second wire electrically connected to the regional electrodes Change to determine which area is touched, and combine the signal change on the first wire electrically connected to the self-capacitance electrode to further determine which specific position is touched, avoid misjudgment, and achieve accurate touch sensing sex.
较佳地，所述自电容电极分别位于所述自电容电极所在膜层表面包含的沿着水平方向划分出的至少两个区域内，与一条所述第一导线电性相连的至少两个自电容电极位于同一列；Preferably, the self-capacitance electrodes are respectively located in at least two areas divided along the horizontal direction included in the surface of the film layer where the self-capacitance electrodes are located, and at least two self-capacitance electrodes electrically connected to one of the first wires are Capacitive electrodes are located in the same column;
或者，or,
所述自电容电极分别位于所述自电容电极所在膜层表面包含的沿着垂直方向划分出的至少两个区域内，与一条所述第一导线电性相连的至少两个自电容电极位于同一行。The self-capacitance electrodes are respectively located in at least two regions divided along the vertical direction on the surface of the film layer where the self-capacitance electrodes are located, and at least two self-capacitance electrodes electrically connected to one of the first wires are located in the same area. Row.
在本发明实施例中，可以保证各第一导线朝着同一个方向延伸且相互平行，以保证很容易即可实现各第一导线互不交叉。In the embodiment of the present invention, it can be ensured that the first conductive wires extend toward the same direction and are parallel to each other, so that it is easy to realize that the first conductive wires do not cross each other.
较佳地，位于每个所述区域内的区域电极包括位于相邻行和/或列自电容电极之间的间隙区域的多个分支。Preferably, the regional electrodes located in each of said regions comprise a plurality of branches located in gap regions between adjacent row and/or column self-capacitance electrodes.
在本发明实施例中，提供了一种区域电极的具体结构，以解释本发明实施例的区域电极的实施方式，其他可用于实现本发明实施例中的区域电极的结构也同等适用于本发明实施例。In the embodiment of the present invention, a specific structure of the regional electrode is provided to explain the implementation of the regional electrode in the embodiment of the present invention, and other structures that can be used to realize the regional electrode in the embodiment of the present invention are equally applicable to the present invention Example.
较佳地，所述第一导线与所述自电容电极异层设置，所述第二导线与所述区域电极异层设置；Preferably, the first wire is arranged in a different layer from the self-capacitance electrode, and the second wire is arranged in a different layer from the regional electrode;
所述第一导线和第二导线同层设置且互不交叉。The first wire and the second wire are arranged in the same layer and do not cross each other.
在本发明实施例中，所述第一导线与所述自电容电极异层设置，所述第二导线与所述区域电极异层设置，可以彻底消除触摸屏中出现的触控盲区。In the embodiment of the present invention, the first wire is arranged in a different layer from the self-capacitance electrode, and the second wire is arranged in a different layer from the regional electrode, which can completely eliminate the touch blind area in the touch screen.
在本发明实施例中，所述第一导线和第二导线同层设置，可以节省膜层数量。In the embodiment of the present invention, the first wire and the second wire are arranged in the same layer, which can save the number of film layers.
在本发明实施例中，所述第一导线和第二导线互不交叉，可以避免各自电容电极与区域电极之间发生短路的现象。In the embodiment of the present invention, the first wires and the second wires do not intersect with each other, which can avoid the occurrence of short circuits between the respective capacitor electrodes and the regional electrodes.
较佳地，相邻的两个所述自电容电极相对的侧边均为折线。Preferably, the opposite sides of two adjacent self-capacitance electrodes are broken lines.
在本发明实施例中，可以保证即使在采用小拇指触摸屏幕时，人体触控的位置也可以始终覆盖多个自电容电极所在区域，从而可以提高确定的触控位置的准确度。In the embodiment of the present invention, it can be guaranteed that even when the little finger is used to touch the screen, the position touched by the human body can always cover the area where multiple self-capacitance electrodes are located, thereby improving the accuracy of the determined touch position.
较佳地，相邻的两个自电容电极相对的为折线的侧边均具有阶梯状结构，两阶梯状结构形状一致且相互匹配；和/或，Preferably, the sides opposite to the broken lines of two adjacent self-capacitance electrodes have a stepped structure, and the two stepped structures are consistent in shape and match each other; and/or,
相邻的两个自电容电极相对的为折线的侧边均具有凹凸状结构，两凹凸状结构形状一致且相互匹配。The sides opposite to the broken lines of two adjacent self-capacitance electrodes have concave-convex structures, and the shapes of the two concave-convex structures are consistent and matched with each other.
在本发明实施例中，提供了具体的相邻的两个自电容电极相对的为折线的实施方式。In the embodiment of the present invention, a specific implementation manner in which two adjacent self-capacitance electrodes are opposite to each other is provided as a zigzag line.
较佳地，所述第一导线将所述自电容电极连接至所述触摸屏的边框处；所述第二导线将所述区域电极连接至所述触摸屏的边框处；Preferably, the first wire connects the self-capacitance electrode to the frame of the touch screen; the second wire connects the regional electrode to the frame of the touch screen;
所述触摸屏还包括：位于所述触摸屏的边框处、且与所述第一导线和第二导线电性相连的周边走线；The touch screen further includes: a peripheral wiring located at the border of the touch screen and electrically connected to the first wire and the second wire;
所述触控侦测芯片通过接线端子与所述周边走线电性相连。The touch detection chip is electrically connected to the peripheral wiring through the connection terminal.
在本发明实施例中，导线数量减少了，与导线连接的周边走线数量也会减少，这将有利于触摸屏窄边框的设计。In the embodiment of the present invention, the number of wires is reduced, and the number of peripheral traces connected with the wires is also reduced, which is beneficial to the design of a narrow border of the touch screen.
较佳地，所述自电容电极分别位于所述自电容电极所在膜层表面包含的沿着水平方向划分出的至少两个区域内，与一条所述第一导线电性相连的至少两个自电容电极位于同一列；Preferably, the self-capacitance electrodes are respectively located in at least two areas divided along the horizontal direction included in the surface of the film layer where the self-capacitance electrodes are located, and at least two self-capacitance electrodes electrically connected to one of the first wires are Capacitive electrodes are located in the same column;
所述触摸屏的边框形状为长方形，各条所述第一导线和第二导线的延伸方向与所述边框的短边方向一致。The shape of the frame of the touch screen is rectangular, and the extension direction of each of the first wires and the second wires is consistent with the direction of the short side of the frame.
在本发明实施例中，可以保证各第一导线和第二导线朝着同一个方向延伸且相互平行，以保证很容易即可实现各第一导线互不交叉，各第二导线互不交叉，以及第一导线和第二导线互不交叉。In the embodiment of the present invention, it can be ensured that the first conductive wires and the second conductive wires extend toward the same direction and are parallel to each other, so that it is easy to realize that the first conductive wires and the second conductive wires do not cross each other. And the first wire and the second wire do not cross each other.
第二方面，本发明实施例提供一种内嵌式触摸屏，包括相对设置的上基板和下基板，还包括：本发明实施例中所述的电容式触摸结构；In a second aspect, an embodiment of the present invention provides an in-cell touch screen, which includes an upper substrate and a lower substrate oppositely arranged, and further includes: the capacitive touch structure described in the embodiment of the present invention;
所述自电容电极、区域电极、第一导线和第二导线设置于所述上基板面向所述下基板的一侧，或设置于所述下基板面向所述上基板的一侧。The self-capacitance electrodes, area electrodes, first wires and second wires are arranged on the side of the upper substrate facing the lower substrate, or on the side of the lower substrate facing the upper substrate.
在本发明实施例中，由于本发明实施例中所述的电容式触摸结构中的导线数量减少了，促使包括本发明实施例提供的所述电容式触摸结构的内嵌式触摸屏中的导线数量也减少了，从而能够在一定程度上减小不利于窄边框设计和触控盲区比较大等问题发生的概率。In the embodiment of the present invention, since the number of wires in the capacitive touch structure described in the embodiment of the present invention is reduced, the number of wires in the in-cell touch screen including the capacitive touch structure provided by the embodiment of the present invention is reduced. It is also reduced, which can reduce the probability of occurrence of problems such as unfavorable narrow bezel design and relatively large touch blind area to a certain extent.
较佳地，本发明实施例中所述的内嵌式触摸屏还包括：设置于所述上基板面向所述下基板的一侧，或设置于所述下基板面向所述上基板的一侧的黑矩阵层；Preferably, the in-cell touch screen described in the embodiment of the present invention further includes: one side of the upper substrate facing the lower substrate, or one side of the lower substrate facing the upper substrate black matrix layer;
各所述自电容电极、区域电极、第一导线、以及第二导线在所述下基板上的正投影位于所述黑矩阵层在所述下基板上的正投影内。The orthographic projections of the self-capacitance electrodes, the area electrodes, the first wires, and the second wires on the lower substrate are located within the orthographic projections of the black matrix layer on the lower substrate.
在本发明实施例中，所述自电容电极和区域电极产生的电场不会影响像素开口区域的电场，因此，不会影响正常显示。In the embodiment of the present invention, the electric field generated by the self-capacitance electrode and the regional electrode will not affect the electric field in the pixel opening area, and thus will not affect normal display.
在本发明实施例中，可以避免影响内嵌式触摸屏的透过率。In the embodiment of the present invention, it is possible to avoid affecting the transmittance of the in-cell touch screen.
较佳地，各所述自电容电极和区域电极在所述下基板上的正投影的图形为网格状结构，且位于所述黑矩阵层在所述下基板上的正投影内。Preferably, the orthographic projections of the self-capacitance electrodes and the regional electrodes on the lower substrate have a grid-like structure, and are located within the orthographic projection of the black matrix layer on the lower substrate.
在本发明实施例中，可以确保内嵌式触摸屏显示的均匀性。In the embodiment of the present invention, the display uniformity of the in-cell touch screen can be ensured.
较佳地，所述黑矩阵层设置于所述上基板面向所述下基板的一侧，在所述黑矩阵层上还设置有彩色滤光层；Preferably, the black matrix layer is arranged on the side of the upper substrate facing the lower substrate, and a color filter layer is also arranged on the black matrix layer;
所述自电容电极和区域电极同层设置，且位于所述黑矩阵层与所述彩色滤光层之间；所述第一导线和第二导线同层设置，且位于所述彩色滤光层之上，所述第一导线通过所述彩色滤光层中的过孔与对应的自电容电极电性连接，所述第二导线通过所述彩色滤光层中的过孔与对应的区域电极电性连接。The self-capacitance electrode and the regional electrode are arranged in the same layer, and are located between the black matrix layer and the color filter layer; the first wire and the second wire are arranged in the same layer, and are located in the color filter layer Above, the first wire is electrically connected to the corresponding self-capacitance electrode through the via hole in the color filter layer, and the second wire is connected to the corresponding regional electrode through the via hole in the color filter layer electrical connection.
在本发明实施例中，提供了一种将所述自电容电极、区域电极、第一导线和第二导线内嵌到上基板上的一种具体实施方式，以解释本发明实施例，其他可用于实现本发明实施例中将所述自电容电极、区域电极、第一导线和第二导线内嵌到上/下基板上也同等适用于本发明实施例。In the embodiment of the present invention, a specific implementation mode of embedding the self-capacitance electrode, the regional electrode, the first lead and the second lead on the upper substrate is provided to explain the embodiment of the present invention, other available Embedding the self-capacitance electrodes, the regional electrodes, the first wires and the second wires on the upper/lower substrates in the implementation of the embodiments of the present invention is equally applicable to the embodiments of the present invention.
较佳地，所述自电容电极、区域电极、第一导线和第二导线设置于所述下基板面向所述上基板的一侧；Preferably, the self-capacitance electrodes, regional electrodes, first wires and second wires are arranged on the side of the lower substrate facing the upper substrate;
将所述自电容电极和区域电极作为公共电极层使用。The self-capacitance electrodes and the regional electrodes are used as a common electrode layer.
在本发明实施例中，可以节省一层膜层，降低制作本发明实施例中的内嵌式触摸屏的复杂度。In the embodiment of the present invention, one film layer can be saved, reducing the complexity of manufacturing the in-cell touch screen in the embodiment of the present invention.
第三方面，本发明实施例提供一种显示装置，包括：本发明实施例中所述的内嵌式触摸屏。In a third aspect, an embodiment of the present invention provides a display device, including: the in-cell touch screen described in the embodiment of the present invention.
在本发明实施例中，由于本发明实施例提供的所述内嵌式触摸屏中的导线 数量减少了，促使包括本发明实施例提供的所述内嵌式触摸屏的显示装置中的导线数量也减少了，从而能够在一定程度上减小不利于窄边框设计和触控盲区比较大等问题发生的概率。In the embodiment of the present invention, since the number of wires in the in-cell touch screen provided by the embodiment of the invention is reduced, the number of wires in the display device including the in-cell touch screen provided by the embodiment of the invention is also reduced Therefore, to a certain extent, it is possible to reduce the probability of occurrence of problems such as unfavorable narrow bezel design and relatively large touch blind area.
第四方面，本发明实施例提供一种显示装置，包括外挂式触摸屏，所述外挂式触摸屏包括：本发明实施例中所述的电容式触摸结构。In a fourth aspect, an embodiment of the present invention provides a display device, including an add-on touch screen, and the add-on touch screen includes: the capacitive touch structure described in the embodiments of the present invention.
在本发明实施例中，由于本发明实施例提供的所述电容式触摸结构中的导线数量减少了，促使包括本发明实施例提供的所述电容式触摸结构的外挂式触摸屏中的导线数量减少了，进而促使包含所述的外挂式触摸屏的显示装置中的导线数量也减少了，从而能够在一定程度上减小不利于窄边框设计和触控盲区比较大等问题发生的概率。In the embodiment of the present invention, since the number of wires in the capacitive touch structure provided by the embodiment of the present invention is reduced, the number of wires in the plug-in touch screen including the capacitive touch structure provided by the embodiment of the present invention is reduced Therefore, the number of wires in the display device including the above-mentioned plug-in touch screen is also reduced, thereby reducing the probability of occurrence of problems such as unfavorable narrow frame design and relatively large touch blind area to a certain extent.
第五方面，本发明实施例提供一种本发明实施例中所述的显示装置的扫描方法，包括：In the fifth aspect, the embodiment of the present invention provides a scanning method of the display device described in the embodiment of the present invention, including:
在一帧时间内，分时进行触摸扫描和显示扫描；其中：In one frame time, touch scanning and display scanning are performed in time-sharing; where:
在触摸扫描时间内，触控侦测芯片通过与各区域电极相连的第二导线和周边走线，分时向各区域电极施加驱动信号；以及，During the touch scanning time, the touch detection chip applies driving signals to the electrodes in each region in time-division through the second wire connected to the electrodes in each region and the peripheral wiring; and,
在向每个区域电极施加驱动信号的时间内，触控侦测芯片通过与各自电容电极相连的第一导线和周边走线，分时向各自电容电极施加驱动信号；接收各自电容电极和区域电极的反馈信号，根据所述区域电极的反馈信号，判断触控位置所在的区域，并根据所述自电容电极的反馈信号判断出触控位置。During the time when the drive signal is applied to each regional electrode, the touch detection chip applies the drive signal to the respective capacitive electrodes in time-division through the first wire connected to the respective capacitive electrodes and the peripheral wiring; receives the respective capacitive electrodes and the regional electrodes According to the feedback signal of the regional electrode, the area where the touch position is located is determined, and the touch position is determined according to the feedback signal of the self-capacitance electrode.
在本发明实施例中，分时进行触摸扫描和显示扫描，可以降低显示信号和触控信号之间的相互干扰，提高画面品质和触控准确性。In the embodiment of the present invention, performing touch scanning and display scanning in time division can reduce mutual interference between display signals and touch signals, and improve image quality and touch accuracy.
与现有技术中各导线电性相连一个自电容电极的方案相比，本发明有益效果如下：Compared with the scheme in the prior art where each wire is electrically connected to a self-capacitance electrode, the beneficial effects of the present invention are as follows:
将自电容电极所在膜层表面划分为至少两个区域，自电容电极分别位于所述至少两个区域内，且至少存在多条第一导线满足：一条所述第一导线与各自分别位于不同区域内的至少两个自电容电极电性相连，从而使得在自电容电极 数量不变的情况下，大量减少与自电容电极连接的导线数量；在划分出的每个所述区域内新增加区域电极，各区域内的所述区域电极电性相连的第二导线不同，由于与自电容电极的个数相比，划分出的所述区域的个数非常少，从而使得增加的与区域电极连接的导线数量也非常少；因此，总的来说，本发明中的导线数量减少了，从而能够在一定程度上减小不利于窄边框设计和触控盲区比较大等问题发生的概率。The surface of the film layer where the self-capacitance electrode is located is divided into at least two regions, the self-capacitance electrodes are respectively located in the at least two regions, and there are at least a plurality of first wires to satisfy: one of the first wires and each of them are located in different regions At least two self-capacitance electrodes are electrically connected, so that when the number of self-capacitance electrodes remains unchanged, the number of wires connected to the self-capacitance electrodes is greatly reduced; new regional electrodes are added in each of the divided regions The second wires electrically connected to the regional electrodes in each region are different. Compared with the number of self-capacitance electrodes, the number of the divided regions is very small, so that the increased number of electrodes connected to the region The number of wires is also very small; therefore, in general, the number of wires in the present invention is reduced, which can reduce the probability of occurrence of problems such as unfavorable narrow frame design and relatively large touch blind area to a certain extent.
并且，当触碰到的自电容电极相连的第一导线仅与该自电容电极电性相连，触控侦测芯片根据该第一导线上的信号变化即可以判断在该自电容电极所在的位置发生了触控；而当触碰到的自电容电极相连的第一导线与至少两个自电容电极电性相连，由于所述至少两个自电容电极各自分别位于不同区域内，每个所述区域内设置有区域电极，各区域内的所述区域电极电性相连的第二导线不同，因此，触控侦测芯片根据与区域电极电性相连的第二导线上的信号变化来判断在哪个所述区域发生触控，并结合与自电容电极电性相连的第一导线上的信号变化来进一步判断在哪个具体位置发生触控，避免误判，实现触控感应的准确性。Moreover, when the first wire connected to the touched self-capacitance electrode is only electrically connected to the self-capacitance electrode, the touch detection chip can judge the position of the self-capacitance electrode according to the signal change on the first wire. A touch occurs; and when the first wire connected to the touched self-capacitance electrode is electrically connected to at least two self-capacitance electrodes, since the at least two self-capacitance electrodes are respectively located in different regions, each of the self-capacitance electrodes Regional electrodes are arranged in the region, and the second wires electrically connected to the regional electrodes in each region are different. Therefore, the touch detection chip judges which The area is touched, and the signal change on the first wire electrically connected to the self-capacitance electrode is used to further determine the specific position where the touch occurs, so as to avoid misjudgment and realize the accuracy of touch sensing.
附图说明Description of drawings
图1a为现有技术中导线和自电容电极同层设置的电容式触摸结构的俯视结构示意图；Figure 1a is a schematic top view of a capacitive touch structure in which wires and self-capacitance electrodes are arranged on the same layer in the prior art;
图1b为现有技术中导线和自电容电极异层设置的电容式触摸结构的俯视结构示意图；FIG. 1b is a schematic top view of a capacitive touch structure in which wires and self-capacitance electrodes are arranged in different layers in the prior art;
图2为本发明实施例中电容式触摸结构的第一种俯视结构示意图；FIG. 2 is a first top view structural schematic diagram of a capacitive touch structure in an embodiment of the present invention;
图3为本发明实施例中电容式触摸结构的第二种俯视结构示意图；3 is a schematic diagram of a second top view structure of a capacitive touch structure in an embodiment of the present invention;
图4为本发明实施例中图3中所示的P1点处的局部放大图；Fig. 4 is a partially enlarged view at point P1 shown in Fig. 3 in an embodiment of the present invention;
图5a～图5d为本发明实施例中触控效果示意图；5a to 5d are schematic diagrams of touch effects in an embodiment of the present invention;
图6为本发明实施例中内嵌式触摸屏的侧视结构示意图；Fig. 6 is a side view structural schematic diagram of an embedded touch screen in an embodiment of the present invention;
图7为本发明实施例提供的电容式触摸结构中一个自电容电极的结构示意图；7 is a schematic structural diagram of a self-capacitance electrode in a capacitive touch structure provided by an embodiment of the present invention;
图8a～图8c为本发明实施例中显示装置的驱动时序示意图。8a to 8c are schematic diagrams of the driving sequence of the display device in the embodiment of the present invention.
具体实施方式detailed description
在本发明实施例中，应用于触摸屏的电容式触摸结构包括：多个同层设置且相互绝缘的呈矩阵式排布的自电容电极，分别位于所述自电容电极所在膜层表面包含的至少两个区域内；位于每个所述区域内的区域电极，与所述自电容电极同层设置，且与所述自电容电极相互绝缘；其中，当对所述电容式触摸结构进行触控操作，且触控位置为一区域内的任意位置时，所述区域的区域电极的电容值会发生变化；与所述自电容电极电性连接的多条互不交叉的第一导线；其中，至少存在多条所述第一导线满足：一条所述第一导线与至少两个自电容电极电性相连，且所述至少两个自电容电极各自分别位于不同区域内；与所述区域电极电性连接的多条互不交叉的第二导线，其中，位于各区域内的所述区域电极电性相连的所述第二导线不同；与所述第一导线和第二导线电性相连且用于在触摸扫描时间内通过检测各所述自电容电极和区域电极的电容值变化以判断触控位置的触控侦测芯片；In the embodiment of the present invention, the capacitive touch structure applied to the touch screen includes: a plurality of self-capacitance electrodes arranged in a matrix arranged in the same layer and insulated from each other, located at least on the surface of the film layer where the self-capacitance electrodes are located. In the two regions; the regional electrodes located in each of the regions are arranged on the same layer as the self-capacitance electrodes and are insulated from the self-capacitance electrodes; wherein, when performing a touch operation on the capacitive touch structure , and when the touch position is any position in an area, the capacitance value of the regional electrode in the area will change; a plurality of first wires that are electrically connected to the self-capacitance electrode; wherein, at least There are multiple first wires that satisfy: one of the first wires is electrically connected to at least two self-capacitance electrodes, and the at least two self-capacitance electrodes are respectively located in different regions; A plurality of connected second wires that do not cross each other, wherein the second wires electrically connected to the regional electrodes located in each area are different; electrically connected to the first wire and the second wire and used for A touch detection chip for determining the touch position by detecting the capacitance value change of each of the self-capacitance electrodes and the regional electrodes during the touch scanning time;
与现有技术中各导线电性相连一个自电容电极的方案相比，在本发明实施例中，将自电容电极所在膜层表面划分为至少两个区域，自电容电极分别位于所述至少两个区域内，且至少存在多条第一导线满足：一条所述第一导线与各自分别位于不同区域内的至少两个自电容电极电性相连，从而使得在自电容电极数量不变的情况下，大量减少与自电容电极连接的导线数量；在划分出的每个所述区域内新增加区域电极，各区域内的所述区域电极电性相连的第二导线不同，由于与自电容电极的个数相比，划分出的所述区域的个数非常少，从而使得增加的与区域电极连接的导线数量也非常少；因此，总的来说，本发明中的导线数量减少了，从而能够在一定程度上减小不利于窄边框设计和触控盲区 比较大等问题发生的概率；Compared with the scheme in the prior art where each wire is electrically connected to a self-capacitance electrode, in the embodiment of the present invention, the surface of the film layer where the self-capacitance electrode is located is divided into at least two regions, and the self-capacitance electrodes are respectively located in the at least two regions. In an area, and there are at least a plurality of first wires satisfying: one of the first wires is electrically connected to at least two self-capacitance electrodes respectively located in different areas, so that when the number of self-capacitance electrodes remains unchanged , greatly reducing the number of wires connected to the self-capacitance electrodes; newly adding regional electrodes in each of the divided regions, and the second wires electrically connected to the regional electrodes in each region are different, due to the connection with the self-capacitance electrodes Compared with the number, the number of the divided regions is very small, so that the increased number of wires connected to the regional electrodes is also very small; therefore, generally speaking, the number of wires in the present invention is reduced, so that it can To a certain extent, reduce the probability of problems such as unfavorable narrow bezel design and relatively large touch blind area;
并且，当触碰到的自电容电极相连的第一导线仅与该自电容电极电性相连，触控侦测芯片根据该第一导线上的信号变化即可以判断在该自电容电极所在的位置发生了触控；而当触碰到的自电容电极相连的第一导线与至少两个自电容电极电性相连，由于所述至少两个自电容电极各自分别位于不同区域内，每个所述区域内设置有区域电极，各区域内的所述区域电极电性相连的第二导线不同，因此，触控侦测芯片根据与区域电极电性相连的第二导线上的信号变化来判断在哪个所述区域发生触控，并结合与自电容电极电性相连的第一导线上的信号变化来进一步判断在哪个具体位置发生触控，避免误判，实现触控感应的准确性。Moreover, when the first wire connected to the touched self-capacitance electrode is only electrically connected to the self-capacitance electrode, the touch detection chip can judge the position of the self-capacitance electrode according to the signal change on the first wire. A touch occurs; and when the first wire connected to the touched self-capacitance electrode is electrically connected to at least two self-capacitance electrodes, since the at least two self-capacitance electrodes are respectively located in different regions, each of the self-capacitance electrodes Regional electrodes are arranged in the region, and the second wires electrically connected to the regional electrodes in each region are different. Therefore, the touch detection chip judges which The area is touched, and the signal change on the first wire electrically connected to the self-capacitance electrode is used to further determine the specific position where the touch occurs, so as to avoid misjudgment and realize the accuracy of touch sensing.
下面结合说明书附图对本发明实施例作进一步详细描述。The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.
附图中各层膜层的厚度和形状不反映真实比例，目的只是示意说明本发明内容。The thickness and shape of each film layer in the drawings do not reflect the real scale, and the purpose is only to illustrate the content of the present invention.
较佳地，本发明实施例提供的一种电容式触摸结构，应用于触摸屏，包括：Preferably, a capacitive touch structure provided by an embodiment of the present invention is applied to a touch screen, including:
多个同层设置且相互绝缘的呈矩阵式排布的自电容电极，分别位于所述自电容电极所在膜层表面包含的至少两个区域内；A plurality of self-capacitance electrodes arranged in a matrix arranged in the same layer and insulated from each other are respectively located in at least two regions included on the surface of the film layer where the self-capacitance electrodes are located;
位于每个所述区域内的区域电极，与所述自电容电极同层设置，且与所述自电容电极相互绝缘；其中，当对所述电容式触摸结构进行触控操作，且触控位置为一区域内的任意位置时，所述区域的区域电极的电容值会发生变化；The regional electrodes located in each of the regions are arranged on the same layer as the self-capacitance electrodes, and are insulated from the self-capacitance electrodes; wherein, when the touch operation is performed on the capacitive touch structure, and the touch position When it is any position in an area, the capacitance value of the area electrode of the area will change;
与所述自电容电极电性连接的多条互不交叉的第一导线；其中，至少存在多条所述第一导线满足：一条所述第一导线与至少两个自电容电极电性相连，且所述至少两个自电容电极各自分别位于不同区域内；A plurality of non-intersecting first wires electrically connected to the self-capacitance electrodes; wherein, there are at least a plurality of the first wires satisfying: one of the first wires is electrically connected to at least two self-capacitance electrodes, And the at least two self-capacitance electrodes are respectively located in different regions;
与所述区域电极电性连接的多条互不交叉的第二导线，其中，位于各区域内的所述区域电极电性相连的所述第二导线不同；A plurality of non-intersecting second wires electrically connected to the regional electrodes, wherein the second wires electrically connected to the regional electrodes located in each region are different;
与所述第一导线和第二导线电性相连且用于在触摸扫描时间内通过检测各所述自电容电极和区域电极的电容值变化以判断触控位置的触控侦测芯片。The touch detection chip is electrically connected with the first wire and the second wire and is used for determining the touch position by detecting the capacitance value change of each of the self-capacitance electrodes and the area electrodes during the touch scanning time.
实施中，与现有技术中各导线电性相连一个自电容电极的方案相比，在本发明实施例中，将自电容电极所在膜层表面划分为至少两个区域，自电容电极分别位于所述至少两个区域内，且至少存在多条第一导线满足：一条所述第一导线与各自分别位于不同区域内的至少两个自电容电极电性相连，从而使得在自电容电极数量不变的情况下，大量减少与自电容电极连接的导线数量；在划分出的每个所述区域内新增加区域电极，各区域内的所述区域电极电性相连的第二导线不同，由于与自电容电极的个数相比，划分出的所述区域的个数非常少，从而使得增加的与区域电极连接的导线数量也非常少；因此，总的来说，本发明中的导线数量减少了，从而能够在一定程度上减小不利于窄边框设计和触控盲区比较大等问题发生的概率，以及有利于降低触控侦测芯片的成本。In practice, compared with the scheme in the prior art where each wire is electrically connected to a self-capacitance electrode, in the embodiment of the present invention, the surface of the film layer where the self-capacitance electrode is located is divided into at least two regions, and the self-capacitance electrodes are respectively located at the In the above at least two areas, and there are at least a plurality of first wires satisfying: one of the first wires is electrically connected to at least two self-capacitance electrodes respectively located in different areas, so that the number of self-capacitance electrodes does not change In the case of the situation, greatly reduce the number of wires connected to the self-capacitance electrodes; newly add regional electrodes in each of the divided regions, and the second wires electrically connected to the regional electrodes in each region are different, because they are different from the self-capacitance electrodes. Compared with the number of capacitive electrodes, the number of the regions divided is very small, so that the increased number of wires connected to the regional electrodes is also very small; therefore, generally speaking, the number of wires in the present invention is reduced. , so that to a certain extent, the probability of occurrence of problems that are not conducive to narrow frame design and relatively large touch blind area can be reduced, and it is beneficial to reduce the cost of the touch detection chip.
实施中，当触碰到的自电容电极相连的第一导线仅与该自电容电极电性相连，触控侦测芯片根据该第一导线上的信号变化即可以判断在该自电容电极所在的位置发生了触控；而当触碰到的自电容电极相连的第一导线与至少两个自电容电极电性相连，由于所述至少两个自电容电极各自分别位于不同区域内，每个所述区域内设置有区域电极，各区域内的所述区域电极电性相连的第二导线不同，因此，触控侦测芯片根据与区域电极电性相连的第二导线上的信号变化来判断在哪个所述区域发生触控，并结合与自电容电极电性相连的第一导线上的信号变化来进一步判断在哪个具体位置发生触控，避免误判，实现触控感应的准确性。In practice, when the first wire connected to the touched self-capacitance electrode is only electrically connected to the self-capacitance electrode, the touch detection chip can judge the location where the self-capacitance electrode is located according to the signal change on the first wire. The location is touched; and when the first wire connected to the touched self-capacitance electrode is electrically connected to at least two self-capacitance electrodes, since the at least two self-capacitance electrodes are respectively located in different areas, each of the self-capacitance electrodes Regional electrodes are arranged in the above regions, and the second wires electrically connected to the regional electrodes in each region are different. Therefore, the touch detection chip judges the Which area is touched, combined with the signal change on the first wire electrically connected to the self-capacitance electrode to further determine which specific position is touched, to avoid misjudgment and achieve the accuracy of touch sensing.
下面将对本发明实施例中的自电容电极、区域电极、第一导线和第二导线的实施方式进行简单介绍。The implementation manners of the self-capacitance electrode, the area electrode, the first wire and the second wire in the embodiment of the present invention will be briefly introduced below.
1、自电容电极。1. Self-capacitance electrodes.
较佳地，自电容电极的形状可以为规则形状，也可以为不规则形状。Preferably, the shape of the self-capacitance electrode can be regular or irregular.
较佳地，自电容电极的形状可以为任一种规则形状，比如，正方形、矩形、三角形和圆形等；比如，如图2所示，自电容电极10的形状为正方形。Preferably, the shape of the self-capacitance electrode can be any regular shape, such as square, rectangle, triangle and circle; for example, as shown in FIG. 2 , the shape of the self-capacitance electrode 10 is a square.
较佳地，自电容电极的形状可以为任一种不规则形状，比如，如图3所示， 所述自电容电极10所在膜层表面包含沿着水平方向划分出的上下两个区域，所述自电容电极10分别位于所述上下两个区域内，所述上区域内的自电容电极10的形状为不规则形状。Preferably, the shape of the self-capacitance electrode can be any irregular shape. For example, as shown in FIG. The self-capacitance electrodes 10 are respectively located in the upper and lower regions, and the shape of the self-capacitance electrodes 10 in the upper region is irregular.
实施中，在自电容电极的形状为规则形状时，其制作复杂度比较低。In practice, when the shape of the self-capacitance electrode is a regular shape, its manufacturing complexity is relatively low.
较佳地，各自电容电极的形状完全相同，比如，如图2所示，电容式触摸结构包括的每个自电容电极10的形状均相同。Preferably, the shapes of the respective capacitive electrodes are completely the same. For example, as shown in FIG. 2 , the shapes of each self-capacitive electrode 10 included in the capacitive touch structure are the same.
较佳地，各自电容电极的形状部分相同，比如，如图3所示，所述上区域内的每个自电容电极10的形状均相同，所述下区域内的每个自电容电极10的形状均相同，而所述上区域内的自电容电极10的形状和所述下区域内的自电容电极10的形状却不同。Preferably, the shapes of the respective capacitive electrodes are partly the same, for example, as shown in Figure 3, the shape of each self-capacitive electrode 10 in the upper region is the same, and the shape of each self-capacitive electrode 10 in the lower region is the same. The shapes are all the same, but the shape of the self-capacitance electrode 10 in the upper region and the shape of the self-capacitance electrode 10 in the lower region are different.
较佳地，各自电容电极的形状也可以完全不同，即，任意两个自电容电极的形状均不同。Preferably, the shapes of the respective capacitive electrodes can also be completely different, that is, the shapes of any two self-capacitive electrodes are different.
实施中，在各自电容电极的形状完全相同时，其制作复杂度比较低。In practice, when the shapes of the capacitor electrodes are completely the same, the manufacturing complexity is relatively low.
较佳地，相邻的两个自电容电极相对的侧边均为折线。Preferably, the opposite sides of two adjacent self-capacitance electrodes are broken lines.
较佳地，相邻的两个自电容电极相对的为折线的侧边均具有阶梯状结构，两阶梯状结构形状一致且相互匹配；和/或，Preferably, the sides opposite to the broken lines of two adjacent self-capacitance electrodes have a stepped structure, and the two stepped structures are consistent in shape and match each other; and/or,
相邻的两个自电容电极相对的为折线的侧边均具有凹凸状结构，两凹凸状结构形状一致且相互匹配。The sides opposite to the broken lines of two adjacent self-capacitance electrodes have concave-convex structures, and the shapes of the two concave-convex structures are consistent and matched with each other.
比如，如图3所示，所述下区域内的任意两个相邻自电容电极10相对的为折线的侧边均具有阶梯状结构，两阶梯状结构形状一致且相互匹配；所述上区域内的任意两个相邻自电容电极10相对的为折线的侧边均具有凹凸状结构，两凹凸状结构形状一致且相互匹配。For example, as shown in FIG. 3 , any two adjacent self-capacitance electrodes 10 in the lower region are opposite to the folded line and have a stepped structure, and the two stepped structures have the same shape and match each other; the upper region The sides of any two adjacent self-capacitance electrodes 10 that are folded lines opposite to each other have concavo-convex structures, and the two concavo-convex structures have the same shape and match each other.
实施中，将相邻的两个自电容电极相对的侧边均设置为折线，可以保证即使在采用小拇指触摸屏幕时，人体触控的位置也可以始终覆盖多个自电容电极所在区域，从而可以提高确定的触控位置的准确度。In the implementation, the opposite sides of two adjacent self-capacitance electrodes are set as broken lines, which can ensure that even when the little finger is used to touch the screen, the position touched by the human body can always cover the area where multiple self-capacitance electrodes are located, so that Improves the accuracy of the determined touch location.
2、区域电极。2. Regional electrodes.
较佳地，区域电极的工作原理与自电容电极的工作原理类似，当人体未触碰屏幕时，各区域内的区域电极所承受的电容为一固定值，当人体触碰屏幕时，触碰位置所在区域的区域电极所承受的电容为固定值叠加人体电容，触控侦测芯片在触摸扫描时间内通过检测各区域内的区域电极的电容值变化可以判断出触控位置所在区域。Preferably, the working principle of the area electrodes is similar to that of the self-capacitance electrodes. When the human body does not touch the screen, the capacitance of the area electrodes in each area is a fixed value. When the human body touches the screen, the touch The capacitance of the area electrodes in the area where the position is located is a fixed value superimposed on the human body capacitance. The touch detection chip can determine the area where the touch position is located by detecting the change of the capacitance value of the area electrodes in each area within the touch scanning time.
较佳地，对于区域电极的结构，只要其满足下列条件即可：当对所述电容式触摸结构进行触控操作，且触控位置为一区域内的任意位置时，所述区域的区域电极的电容值会发生变化。Preferably, as for the structure of the regional electrodes, as long as it satisfies the following conditions: when the touch operation is performed on the capacitive touch structure, and the touch position is any position in a region, the regional electrodes of the region The capacitance value will change.
较佳地，位于每个所述区域内的区域电极包括位于相邻行和/或列自电容电极之间的间隙区域的多个分支。Preferably, the regional electrodes located in each of said regions comprise a plurality of branches located in gap regions between adjacent row and/or column self-capacitance electrodes.
较佳地，位于每个所述区域内的区域电极包括位于任意两相邻行和列自电容电极之间的间隙区域的多个分支；Preferably, the regional electrodes located in each of said regions comprise a plurality of branches located in the gap region between any two adjacent row and column self-capacitance electrodes;
比如，如图2所示，区域电极20包括分别位于任意两相邻行自电容电极10之间的间隙区域的多个分支21、以及包括分别位于任意两相邻列自电容电极10之间的间隙区域的多个分支22。For example, as shown in FIG. 2 , the regional electrode 20 includes a plurality of branches 21 located in the gap region between any two adjacent rows of self-capacitance electrodes 10, and a plurality of branches 21 respectively located between any two adjacent columns of self-capacitance electrodes 10. A plurality of branches 22 in the interstitial area.
较佳地，位于每个所述区域内的区域电极包括位于任意两相邻列自电容电极之间的间隙区域的多个分支；Preferably, the regional electrodes located in each of the regions include a plurality of branches located in the gap region between any two adjacent columns of self-capacitance electrodes;
比如，如图3所示，区域电极20包括分别位于任意两相邻列自电容电极10之间的间隙区域的多个分支22。For example, as shown in FIG. 3 , the regional electrode 20 includes a plurality of branches 22 respectively located in the gap region between any two adjacent columns of self-capacitance electrodes 10 .
较佳地，位于每个所述区域内的区域电极包括位于任意两相邻行自电容电极之间的间隙区域的多个分支；Preferably, the regional electrodes located in each of the regions include a plurality of branches located in the gap region between any two adjacent rows of self-capacitive electrodes;
具体实施中，区域电极包括位于相邻行自电容电极之间的间隙区域的多个分支的实施方式与图3中所示的区域电极包括位于相邻列自电容电极之间的间隙区域的多个分支的实施方式类似，在此不再赘述。In a specific implementation, the embodiment in which the regional electrode includes a plurality of branches in the gap region between adjacent row self-capacitance electrodes is the same as the embodiment in which the regional electrode includes a plurality of gap regions in adjacent column self-capacitance electrodes shown in FIG. 3 . The implementation of each branch is similar and will not be repeated here.
实施中，区域电极包括位于任意两相邻行和/或列自电容电极之间的间隙区域的多个分支时，可以保证在触碰屏幕时，会触碰到区域电极，从而有利于保 证确定出的触控位置的准确度。In practice, when the regional electrodes include multiple branches located in the gap region between any two adjacent rows and/or columns of self-capacitance electrodes, it can be ensured that when the screen is touched, the regional electrodes will be touched, which is beneficial to ensure the determination The accuracy of the touch position.
3、第一导线。3. The first wire.
较佳地，可以根据需要将所述第一导线与所述自电容电极同层设置或者异层设置。Preferably, the first wire and the self-capacitance electrode can be arranged in the same layer or in different layers as required.
较佳地，所述第一导线与所述自电容电极异层设置，自电容电极与对应的异层设置的第一导线通过过孔电性相连；Preferably, the first wire is arranged in a different layer from the self-capacitance electrode, and the self-capacitance electrode is electrically connected to the corresponding first wire arranged in a different layer through a via hole;
比如，如图2和图3所示，自电容电极10通过过孔30与对应的异层设置的第一导线41电性相连。For example, as shown in FIG. 2 and FIG. 3 , the self-capacitance electrode 10 is electrically connected to the corresponding first wire 41 arranged in different layers through the via hole 30 .
实施中，自电容电极和第一导线异层设置，可以减小触摸屏中出现的触控盲区。In implementation, the self-capacitance electrode and the first wire are arranged in different layers, which can reduce the touch blind area in the touch screen.
较佳地，一个自电容电极可以与至少一条所述第一导线电性相连。Preferably, one self-capacitance electrode can be electrically connected with at least one said first wire.
较佳地，一个自电容电极与一条所述第一导线电性相连。Preferably, one self-capacitance electrode is electrically connected to one said first wire.
实施中，一个自电容电极与一条所述第一导线电性相连，可以进一步减少第一导线的数量。In practice, one self-capacitance electrode is electrically connected to one first wire, which can further reduce the number of first wires.
4、第二导线。4. The second wire.
较佳地，可以根据需要将所述第二导线与所述区域电极同层设置或者异层设置。Preferably, the second wire and the regional electrodes can be arranged in the same layer or in different layers as required.
较佳地，所述第二导线与所述区域电极异层设置，区域电极与对应的异层设置的第二导线通过过孔电性连接。Preferably, the second wires and the regional electrodes are arranged in different layers, and the regional electrodes are electrically connected to the corresponding second wires arranged in different layers through via holes.
实施中，区域电极和第二导线异层设置，可以减小触摸屏中出现的触控盲区。In practice, the regional electrodes and the second wires are arranged in different layers, which can reduce the touch blind area in the touch screen.
较佳地，位于一个区域内的区域电极与至少一条所述第二导线电性相连。Preferably, the regional electrodes located in one region are electrically connected to at least one second wire.
较佳地，位于一个区域内的区域电极与一条所述第二导线电性相连。Preferably, the regional electrodes located in one region are electrically connected to one said second wire.
实施中，位于一个区域内的区域电极与一条所述第二导线电性相连，可以进一步减少导线的数量。In practice, the regional electrodes located in one region are electrically connected to one second wire, which can further reduce the number of wires.
实施中，自电容电极和区域电极同层设置，自电容电极和第一导线异层设 置，且区域电极和第二导线异层设置，可以彻底消除触摸屏中出现的触控盲区。In practice, the self-capacitance electrodes and the regional electrodes are arranged on the same layer, the self-capacitance electrodes and the first wires are arranged on different layers, and the regional electrodes and the second wires are arranged on different layers, which can completely eliminate the touch blind area in the touch screen.
较佳地，所述第一导线和第二导线可以同层设置，也可以异层设置。Preferably, the first wire and the second wire can be arranged in the same layer or in different layers.
较佳地，所述第一导线和第二导线同层设置且互不交叉。Preferably, the first wire and the second wire are arranged in the same layer and do not cross each other.
实施中，所述第一导线和第二导线同层设置，可以节省膜层数量。In practice, the first wire and the second wire are arranged in the same layer, which can save the number of film layers.
实施中，所述第一导线和第二导线互不交叉，可以避免各自电容电极与区域电极之间发生短路的现象。In practice, the first wires and the second wires do not intersect with each other, so that short circuits between respective capacitor electrodes and regional electrodes can be avoided.
较佳地，所述第一导线和第二导线可以与触控侦测芯片直接电性连接，也可以通过周边走线与触控侦测芯片电性连接。Preferably, the first wire and the second wire may be directly electrically connected to the touch detection chip, or may be electrically connected to the touch detection chip through peripheral wiring.
较佳地，所述第一导线将所述自电容电极连接至所述触摸屏的边框处；所述第二导线将所述区域电极连接至所述触摸屏的边框处；Preferably, the first wire connects the self-capacitance electrode to the frame of the touch screen; the second wire connects the regional electrode to the frame of the touch screen;
所述触摸屏还包括：位于所述触摸屏的边框处、且与所述第一导线和第二导线电性相连的周边走线；The touch screen further includes: a peripheral wiring located at the border of the touch screen and electrically connected to the first wire and the second wire;
所述触控侦测芯片通过接线端子与所述周边走线电性相连。The touch detection chip is electrically connected to the peripheral wiring through the connection terminal.
实施中，导线数量减少了，与导线连接的周边走线数量也会减少，这将有利于触摸屏窄边框的设计。In implementation, the number of wires is reduced, and the number of peripheral traces connected with the wires is also reduced, which is beneficial to the design of a narrow border of the touch screen.
下面将对本发明实施例中的所述自电容电极分别位于自电容电极所在膜层表面包含的至少两个区域内，且至少存在多条所述第一导线满足：一条所述第一导线与各自分别位于不同区域内的至少两个自电容电极电性相连的实施方式进行简单介绍。The self-capacitance electrodes in the embodiment of the present invention are respectively located in at least two regions included on the surface of the film layer where the self-capacitance electrodes are located, and there are at least a plurality of the first wires to satisfy: one of the first wires and each An implementation manner in which at least two self-capacitance electrodes respectively located in different regions are electrically connected will be briefly introduced.
需要说明的是，任意一种将所述自电容电极所在膜层表面划分出至少两个区域的实施方式均适用于本发明实施例，即，可以沿着任意方向，采用等分或者不等分的方式，将所述自电容电极所在膜层表面划分出至少两个区域；It should be noted that any implementation method that divides the surface of the film layer where the self-capacitance electrode is located into at least two regions is applicable to the embodiment of the present invention, that is, it can adopt equal division or unequal division along any direction In a manner, the surface of the film layer where the self-capacitance electrode is located is divided into at least two regions;
比如，沿着水平和/或垂直方向，将所述自电容电极所在膜层表面划分出至少两个区域；或者，沿着与水平方向夹角为45度的方向，将所述自电容电极所在膜层表面划分出至少两个区域；或者，沿着与水平方向夹角为135度的方向，将所述自电容电极所在膜层表面划分出至少两个区域。For example, along the horizontal and/or vertical direction, the surface of the film layer where the self-capacitance electrode is located is divided into at least two regions; or, along a direction with an angle of 45 degrees to the horizontal direction, the The surface of the film layer is divided into at least two regions; or, along a direction with an angle of 135 degrees to the horizontal direction, the surface of the film layer where the self-capacitance electrode is located is divided into at least two regions.
需要说明的是，任意一种实现一条第一导线与各自分别位于不同区域内的至少两个自电容电极电性相连，且保证各第一导线互不交叉的实施方式均适用于本发明实施例。It should be noted that any implementation mode that realizes that a first wire is electrically connected to at least two self-capacitance electrodes that are respectively located in different regions, and ensures that the first wires do not cross each other is applicable to the embodiment of the present invention .
较佳地，所述自电容电极分别位于所述自电容电极所在膜层表面包含的沿着水平方向划分出的至少两个区域内，与一条所述第一导线电性相连的至少两个自电容电极位于同一列。Preferably, the self-capacitance electrodes are respectively located in at least two areas divided along the horizontal direction included in the surface of the film layer where the self-capacitance electrodes are located, and at least two self-capacitance electrodes electrically connected to one of the first wires are Capacitive electrodes are located in the same column.
实施中，可以保证各第一导线朝着同一个方向延伸且相互平行，以保证很容易即可实现各第一导线互不交叉。In practice, it can be ensured that the first conductive wires extend toward the same direction and are parallel to each other, so that it is easy to realize that the first conductive wires do not cross each other.
较佳地，所述自电容电极分别位于所述自电容电极所在膜层表面包含的沿着水平方向划分出的至少两个区域内，且对于各所述区域，分别确定位于所述区域内的各自电容电极在所述区域内所属的行数和列数；其中：Preferably, the self-capacitance electrodes are respectively located in at least two regions divided along the horizontal direction included in the surface of the film layer where the self-capacitance electrodes are located, and for each of the regions, the The number of rows and columns to which the respective capacitive electrodes belong in said region; wherein:
一条所述第一导线与在各区域内所属行数和列数为同一行和列的多个自电容电极电性相连。One first wire is electrically connected to a plurality of self-capacitance electrodes belonging to the same row and column in each region.
比如，如图2所示，自电容电极10分别位于所述自电容电极10所在膜层表面包含的沿着水平方向划分出的上下两个区域内；For example, as shown in FIG. 2 , the self-capacitance electrodes 10 are respectively located in the upper and lower regions divided along the horizontal direction included on the surface of the film layer where the self-capacitance electrodes 10 are located;
对于所述上区域，分别确定位于所述上区域内的各自电容电极10在所述上区域内所属的行数和列数；比如，自电容电极A在所述上区域内属于第一行第一列；以及，对于所述下区域，分别确定位于所述下区域内的各自电容电极10在所述下区域内所属的行数和列数；比如，自电容电极B在所述下区域内属于第一行第一列；For the upper area, determine the number of rows and columns to which the respective capacitive electrodes 10 in the upper area belong in the upper area; for example, the self-capacitance electrode A belongs to the first row in the upper area One column; and, for the lower area, respectively determine the row number and the column number of the respective capacitive electrodes 10 in the lower area to be located in the lower area; for example, the self-capacitance electrode B is in the lower area belongs to the first row and first column;
一条第一导线41与在所述上下区域内所属行数和列数为同一行和列的两个自电容电极10电性相连；比如，自电容电极A在所述上区域内属于第一行第一列，自电容电极B在所述下区域内属于第一行第一列，自电容电极A和自电容电极B在自身对应区域内所属行数和列数相同，采用导线w1同时与自电容电极A和自电容电极B电性相连。A first wire 41 is electrically connected to two self-capacitance electrodes 10 belonging to the same row and column in the upper and lower regions; for example, the self-capacitance electrode A belongs to the first row in the upper region In the first column, the self-capacitance electrode B belongs to the first row and the first column in the lower area, and the self-capacitance electrode A and the self-capacitance electrode B belong to the same number of rows and columns in their corresponding area, and the wire w1 is used to connect with the self-capacitance electrode at the same time. The capacitor electrode A is electrically connected to the self-capacitance electrode B.
实施中，与一条所述第一导线电性相连的各自电容电极在自身对应区域内 所属行数和列数为同一行和列，因此，遵循此规律，当所述第一导线上的信号变化时，可以很容易地确定出可能在哪个具体位置发生触控，即，可以简化触控侦测芯片判断触控位置的复杂度。In implementation, the respective capacitive electrodes electrically connected to one of the first wires belong to the same row and column in their corresponding area. Therefore, following this rule, when the signal on the first wire changes , it is easy to determine the specific position where the touch may occur, that is, the complexity of determining the touch position by the touch detection chip can be simplified.
较佳地，所述自电容电极分别位于所述自电容电极所在膜层表面包含的沿着水平方向划分出的至少两个区域内，与一条所述第一导线电性相连的至少两个自电容电极位于同一列；Preferably, the self-capacitance electrodes are respectively located in at least two areas divided along the horizontal direction included in the surface of the film layer where the self-capacitance electrodes are located, and at least two self-capacitance electrodes electrically connected to one of the first wires are Capacitive electrodes are located in the same column;
所述触摸屏的边框形状为长方形，各条所述第一导线和第二导线的延伸方向与所述边框的短边方向一致。The shape of the frame of the touch screen is rectangular, and the extension direction of each of the first wires and the second wires is consistent with the direction of the short side of the frame.
实施中，可以保证各第一导线和第二导线朝着同一个方向延伸且相互平行，以保证很容易即可实现各第一导线互不交叉，各第二导线互不交叉，以及第一导线和第二导线互不交叉。In practice, it can be ensured that the first wires and the second wires extend in the same direction and are parallel to each other, so that it is easy to realize that the first wires do not cross each other, the second wires do not cross each other, and the first wires do not cross each other. and the second wire do not cross each other.
较佳地，所述自电容电极分别位于所述自电容电极所在膜层表面包含的沿着垂直方向划分出的至少两个区域内，与一条所述第一导线电性相连的至少两个自电容电极位于同一行。Preferably, the self-capacitance electrodes are respectively located in at least two areas divided along the vertical direction included in the surface of the film layer where the self-capacitance electrodes are located, and at least two self-capacitance electrodes electrically connected to one of the first wires are Capacitive electrodes are located in the same row.
实施中，可以保证各第一导线朝着同一个方向延伸且相互平行，以保证很容易即可实现各第一导线互不交叉。In practice, it can be ensured that the first conductive wires extend toward the same direction and are parallel to each other, so that it is easy to realize that the first conductive wires do not cross each other.
较佳地，所述自电容电极分别位于所述自电容电极所在膜层表面包含的沿着垂直方向划分出的至少两个区域内，且对于各所述区域，分别确定位于所述区域内的各自电容电极在所述区域内所属的行数和列数；其中：Preferably, the self-capacitance electrodes are respectively located in at least two regions divided along the vertical direction included in the surface of the film layer where the self-capacitance electrodes are located, and for each of the regions, the The number of rows and columns to which the respective capacitive electrodes belong in said region; wherein:
一条所述第一导线与在各区域内所属行数和列数为同一行和列的多个自电容电极电性相连。One first wire is electrically connected to a plurality of self-capacitance electrodes belonging to the same row and column in each region.
实施中，与一条所述第一导线电性相连的各自电容电极在自身对应区域内所属行数和列数为同一行和列，因此，遵循此规律，当所述第一导线上的信号变化时，可以很容易地确定出可能在哪个具体位置发生触控，即，可以简化触控侦测芯片判断触控位置的复杂度。In implementation, the respective capacitive electrodes electrically connected to one of the first wires belong to the same row and column in their corresponding area. Therefore, following this rule, when the signal on the first wire changes , it is easy to determine the specific position where the touch may occur, that is, the complexity of determining the touch position by the touch detection chip can be simplified.
较佳地，所述自电容电极分别位于所述自电容电极所在膜层表面包含的沿 着垂直方向划分出的至少两个区域内，与一条所述第一导线电性相连的至少两个自电容电极位于同一行；Preferably, the self-capacitance electrodes are respectively located in at least two areas divided along the vertical direction included in the surface of the film layer where the self-capacitance electrodes are located, and at least two self-capacitance electrodes electrically connected to one of the first wires are Capacitive electrodes are located in the same row;
所述触摸屏的边框形状为长方形，各条所述第一导线和第二导线的延伸方向与所述边框的长边方向一致。The frame shape of the touch screen is rectangular, and the extension direction of each of the first wires and the second wires is consistent with the long side direction of the frame.
实施中，可以保证各第一导线和第二导线朝着同一个方向延伸且相互平行，以保证很容易即可实现各第一导线互不交叉，各第二导线互不交叉，以及第一导线和第二导线互不交叉。In practice, it can be ensured that the first wires and the second wires extend in the same direction and are parallel to each other, so that it is easy to realize that the first wires do not cross each other, the second wires do not cross each other, and the first wires do not cross each other. and the second wire do not cross each other.
下面将结合图3，对本发明实施例中的电容式触摸结构的实施方式进行详细介绍。The implementation manner of the capacitive touch structure in the embodiment of the present invention will be described in detail below with reference to FIG. 3 .
实施例一Embodiment one
在本发明实施例一中，将结合图3，对电容式触摸结构的结构进行详细介绍。In Embodiment 1 of the present invention, the structure of the capacitive touch structure will be described in detail with reference to FIG. 3 .
如图3所示，应用于触摸屏的电容式触摸结构包括：As shown in Figure 3, the capacitive touch structure applied to the touch screen includes:
多个同层设置且相互绝缘的呈矩阵式排布的自电容电极10，分别位于所述自电容电极10所在膜层表面包含的沿着水平方向不等分划出的上下两个区域内；其中，图3是以所述上区域内存在4行4列共16个自电容电极10、以及所述下区域内存在3行4列共12个自电容电极10为例进行说明；A plurality of self-capacitance electrodes 10 arranged on the same layer and insulated from each other in a matrix form are respectively located in the upper and lower regions that are not equally divided along the horizontal direction included on the surface of the film layer where the self-capacitance electrodes 10 are located; Wherein, FIG. 3 is illustrated by taking 16 self-capacitance electrodes 10 in 4 rows and 4 columns in the upper area and 12 self-capacitance electrodes 10 in 3 rows and 4 columns in the lower area as an example;
位于每个所述区域内的一个区域电极20，位于所述上区域内的区域电极20与自电容电极10同层设置，包括位于相邻列自电容电极之间的间隙区域的多个分支22，且与自电容电极10相互绝缘；位于所述下区域内的区域电极20的实施方式与位于所述上区域内的区域电极20的实施方式类似；A regional electrode 20 located in each of the regions, the regional electrode 20 located in the upper region is arranged on the same layer as the self-capacitance electrode 10, and includes a plurality of branches 22 located in the gap region between adjacent columns of self-capacitance electrodes , and are mutually insulated from the self-capacitance electrode 10; the embodiment of the regional electrode 20 located in the lower region is similar to the embodiment of the regional electrode 20 located in the upper region;
与自电容电极10异层设置、且将自电容电极10连接至所述触摸屏的边框处的多条相互平行的第一导线41；其中，一条第一导线41与在所述上下区域内所属行数和列数为同一行和列的两个自电容电极10电性相连，具体为：第一导线w1与自电容电极A和自电容电极a电性相连，第一导线w2与自电容电极E和自电容电极e电性相连，以此类推；另外，对于所述上区域内的自电 容电极M、自电容电极N、自电容电极O和自电容电极P，由于在所述下区域内不存在与之所属行数和列数为同一行和列的自电容电极，因此，将其各电性相连一条第一导线41；A plurality of mutually parallel first wires 41 arranged in different layers with the self-capacitance electrode 10 and connecting the self-capacitance electrode 10 to the frame of the touch screen; The number and column number are two self-capacitance electrodes 10 in the same row and column that are electrically connected, specifically: the first wire w1 is electrically connected to the self-capacitance electrode A and the self-capacitance electrode a, and the first wire w2 is electrically connected to the self-capacitance electrode E It is electrically connected with the self-capacitance electrode e, and so on; in addition, for the self-capacitance electrode M, the self-capacitance electrode N, the self-capacitance electrode O and the self-capacitance electrode P in the upper region, since there is no There are self-capacitance electrodes in the same row and column as the number of rows and columns to which they belong, therefore, each of them is electrically connected to a first wire 41;
与区域电极20异层设置、且将区域电极20连接至所述触摸屏的边框处的两条互不交叉的第二导线(图中未示出)，其中，所述上区域内的区域电极pad1电性相连一条第二导线，所述下区域内的区域电极pad2电性相连一条第二导线；Two non-intersecting second wires (not shown in the figure) that are arranged in a different layer from the regional electrode 20 and connect the regional electrode 20 to the frame of the touch screen, wherein the regional electrode pad1 in the upper region electrically connected to a second wire, and the area electrode pad2 in the lower area is electrically connected to a second wire;
位于所述触摸屏的边框处且与各条所述第一导线41和第二导线一一对应相连的周边走线50；Peripheral wires 50 located at the frame of the touch screen and connected to each of the first wires 41 and the second wires in one-to-one correspondence;
通过接线端子60与周边走线50电性相连且用于在触摸扫描时间内通过检测各自电容电极10和区域电极20的电容值变化以判断触控位置的触控侦测芯片。The touch detection chip is electrically connected to the peripheral wiring 50 through the connection terminal 60 and is used to determine the touch position by detecting the capacitance value changes of the respective capacitive electrodes 10 and the regional electrodes 20 during the touch scanning time.
实施中，以图3中所示的位于上区域内的16个自电容电极10、以及位于下区域内的12个自电容电极10为例；During implementation, take the 16 self-capacitance electrodes 10 located in the upper region and the 12 self-capacitance electrodes 10 located in the lower region shown in FIG. 3 as examples;
若采用现有技术中一条导线电性相连一个自电容电极的方案，共需要28根导线；If the prior art scheme in which one wire is electrically connected to one self-capacitance electrode is adopted, a total of 28 wires are needed;
若采用本发明实施例中所述的方案，需要12根与在所述上下区域内所属行数和列数为同一行和列的两个自电容电极10电性相连的第一导线41，需要4根分别与所述上区域内的自电容电极M、自电容电极N、自电容电极O和自电容电极P电性相连的第一导线41；需要2根分别与所述上下两个区域内的区域电极电性相连的第二导线；因此，共需要18根导线；If the scheme described in the embodiment of the present invention is adopted, 12 first wires 41 electrically connected to the two self-capacitance electrodes 10 that belong to the same row and column in the upper and lower regions are required. 4 first wires 41 electrically connected to the self-capacitance electrode M, the self-capacitance electrode N, the self-capacitance electrode O and the self-capacitance electrode P in the upper area respectively; The second wire electrically connected to the area electrode of the ; therefore, a total of 18 wires are required;
因此，总的来说，本发明中的导线数量减少了，使得与导线一一对应连接的周边走线数量减少了，这将有利于触摸屏窄边框的设计，也有利于降低触控侦测芯片的成本。Therefore, in general, the number of wires in the present invention is reduced, so that the number of peripheral wires connected to the wires in one-to-one correspondence is reduced. the cost of.
实施例二Embodiment two
在本发明实施例二中，将结合图3，对本发明实施例中应用于触摸屏的电 容式触摸结构的触控原理进行详细介绍。In the second embodiment of the present invention, the touch principle of the capacitive touch structure applied to the touch screen in the embodiment of the present invention will be introduced in detail with reference to FIG. 3 .
一、单点触控。1. Single touch.
1、触控点位于图3所示的上区域中。1. The touch point is located in the upper area shown in FIG. 3 .
如图4所示，位于图3所示的上区域中的P1点与所述上区域内的区域电极pad1、自电容电极A、自电容电极B、自电容电极E和自电容电极F均部分交叠；P1点与自电容电极A的交叠区域面积为S1，P1点与自电容电极B的交叠区域面积为S4，P1点与自电容电极E的交叠区域面积为S2，P1点与自电容电极F的交叠区域面积为S3，其中，S2>S1>S3>S4；As shown in Figure 4, the P1 point located in the upper region shown in Figure 3 is part of the regional electrode pad1, self-capacitance electrode A, self-capacitance electrode B, self-capacitance electrode E, and self-capacitance electrode F in the upper region. Overlap; the overlapping area of P1 point and self-capacitance electrode A is S1, the overlapping area of P1 point and self-capacitance electrode B is S4, the overlapping area of P1 point and self-capacitance electrode E is S2, and the area of P1 point The area of the overlapping area with the self-capacitance electrode F is S3, wherein, S2>S1>S3>S4;
当手指触控到图3所示的P1点位置处时(触控效果图具体如图5a所示)，分别与区域电极pad1、自电容电极A、自电容电极B、自电容电极E和自电容电极F电性相连的第二导线、第一导线w1、第一导线w5、第一导线w2和第一导线w6上的信号均会变化；并且，对于与P1点交叠区域的面积越大的自电容电极，其电性相连的第一导线上的信号变化量越大；When the finger touches the position of point P1 shown in Figure 3 (the touch effect diagram is shown in Figure 5a), the area electrode pad1, self-capacitance electrode A, self-capacitance electrode B, self-capacitance electrode E and self-capacitance electrode respectively The signals on the second wire, the first wire w1, the first wire w5, the first wire w2 and the first wire w6 electrically connected to the capacitive electrode F will all change; the self-capacitance electrode, the greater the signal variation on the first wire electrically connected to it;
触控侦测芯片根据与区域电极pad1电性相连的第二导线上的信号变化来判断在所述上区域发生触控；根据分别与自电容电极A、自电容电极B、自电容电极E和自电容电极F电性相连的第一导线w1、第一导线w5、第一导线w2和第一导线w6上的信号变化来进一步判断触控位置与自电容电极A、自电容电极B、自电容电极E和自电容电极F均部分交叠；并根据所述第一导线w1、第一导线w5、第一导线w2和第一导线w6上的信号变化量大小，判断出具体触控位置。The touch detection chip judges that a touch occurs in the upper area according to the signal change on the second wire electrically connected to the area electrode pad1; The signal changes on the first wire w1, the first wire w5, the first wire w2, and the first wire w6 electrically connected to the self-capacitance electrode F are used to further determine the touch position and the self-capacitance electrode A, self-capacitance electrode B, and self-capacitance. Both the electrode E and the self-capacitance electrode F are partially overlapped; and the specific touch position is determined according to the signal variation on the first wire w1 , the first wire w5 , the first wire w2 and the first wire w6 .
2、触控点位于图3所示的下区域中。2. The touch points are located in the lower area shown in FIG. 3 .
如图3所示，位于图3所示的下区域中的P2点与所述下区域内的区域电极pad2、自电容电极a、自电容电极e和自电容电极f均部分交叠；P2点与自电容电极a的交叠区域面积为S5，P2点与自电容电极e的交叠区域面积为S6，P2点与自电容电极f的交叠区域面积为S7，其中，S5>S7>S6；As shown in Figure 3, the P2 point located in the lower region shown in Figure 3 overlaps with the regional electrode pad2, self-capacitance electrode a, self-capacitance electrode e and self-capacitance electrode f in the lower region; P2 point The area of overlapping area with self-capacitance electrode a is S5, the area of overlapping area between point P2 and self-capacitance electrode e is S6, and the area of overlapping area between point P2 and self-capacitance electrode f is S7, wherein, S5>S7>S6 ;
当手指触控到图3所示的P2点位置处时(触控效果图具体如图5b所示)， 分别与区域电极pad2、自电容电极a、自电容电极e和自电容电极f电性相连的第二导线、第一导线w1、第一导线w2和第一导线w6上的信号均会变化；并且，对于与P2点交叠区域的面积越大的自电容电极，其电性相连的第一导线上的信号变化量越大；When the finger touches the position of point P2 shown in Figure 3 (the touch effect diagram is specifically shown in Figure 5b), it is electrically connected to the regional electrode pad2, self-capacitance electrode a, self-capacitance electrode e, and self-capacitance electrode f respectively. The signals on the connected second wire, first wire w1, first wire w2, and first wire w6 will all change; and, for the self-capacitance electrode with a larger area overlapping the point P2, its electrically connected The greater the signal variation on the first wire;
触控侦测芯片根据与区域电极pad2电性相连的第二导线上的信号变化来判断在所述下区域发生触控；根据分别与自电容电极a、自电容电极e和自电容电极f电性相连的第一导线w1、第一导线w2和第一导线w6上的信号变化来进一步判断触控位置与自电容电极a、自电容电极e和自电容电极f均部分交叠；并根据所述第一导线w1、第一导线w2和第一导线w6上的信号变化量大小，判断出具体触控位置。The touch detection chip judges that a touch occurs in the lower area according to the signal change on the second wire electrically connected to the regional electrode pad2; The signal changes on the first conductive wire w1, the first conductive wire w2, and the first conductive wire w6 that are electrically connected to further determine that the touch position partially overlaps with the self-capacitance electrode a, the self-capacitance electrode e, and the self-capacitance electrode f; and according to the The specific touch position can be determined according to the magnitude of the signal variation on the first wire w1, the first wire w2 and the first wire w6.
二、多点触控。Two, multi-touch.
1、触控点为图3所示的P1点和P2点。1. The touch points are P1 and P2 as shown in FIG. 3 .
当手指同时触控到图3所示的P1点和P2点位置处时，触控效果图具体如图5c所示；为了方便理解本发明实施例中的方案，假设触控到一个位置处时，所述位置处对应的各自电容电极连接的第一导线上的信号变化总量为一个单位量：When the finger touches the P1 and P2 points shown in Figure 3 at the same time, the touch effect diagram is shown in Figure 5c; in order to facilitate the understanding of the solution in the embodiment of the present invention, it is assumed that when the touch is at a position , the total amount of signal changes on the first wires connected to the corresponding capacitive electrodes at the positions is a unit amount:
对于手指触控到P1点处，与区域电极pad1电性相连的第二导线上的信号会变化，可以确定所述上区域中有触控发生；以及，分别与自电容电极A、自电容电极B、自电容电极E和自电容电极F电性相连的第一导线w1、第一导线w5、第一导线w2和第一导线w6上的信号会变化，根据与P1点交叠区域的面积越大的自电容电极，其电性相连的第一导线上的信号变化量越大的原则，确定第一导线w2上的信号变化量为0.4，第一导线w1上的信号变化量为0.3，第一导线w6上的信号变化量为0.2，第一导线w5上的信号变化量为0.1；When the finger touches the point P1, the signal on the second wire electrically connected to the regional electrode pad1 will change, and it can be determined that there is a touch in the upper region; and, respectively, the self-capacitance electrode A and the self-capacitance electrode B. The signals on the first wire w1, the first wire w5, the first wire w2, and the first wire w6 electrically connected to the self-capacitance electrode E and the self-capacitance electrode F will change, according to the area of the overlapping area with point P1. Larger self-capacitance electrodes, the greater the signal variation on the first wire electrically connected to it, the signal variation on the first wire w2 is determined to be 0.4, the signal variation on the first wire w1 is 0.3, and the first wire w1 is determined to be 0.3. The signal variation on the first wire w6 is 0.2, and the signal variation on the first wire w5 is 0.1;
对于手指触控到P2点处，与区域电极pad2电性相连的第二导线上的信号会变化，可以确定所述下区域中有触控发生；以及，分别与自电容电极a、自电容电极e和自电容电极f电性相连的第一导线w1、第一导线w2和第一导线 w6上的信号会变化，根据与P2点交叠区域的面积越大的自电容电极，其电性相连的第一导线上的信号变化量越大的原则，确定第一导线w1上的信号变化量为0.6，第一导线w2上的信号变化量为0.3，第一导线w6上的信号变化量为0.1；When the finger touches the point P2, the signal on the second wire electrically connected to the regional electrode pad2 will change, and it can be determined that there is a touch in the lower region; The signals on the first wire w1, the first wire w2, and the first wire w6 that are electrically connected to the self-capacitance electrode f will change. According to the self-capacitance electrode with a larger overlapping area with the point P2, its electrical connection Based on the principle that the signal variation on the first wire w1 is larger, the signal variation on the first wire w1 is 0.6, the signal variation on the first wire w2 is 0.3, and the signal variation on the first wire w6 is 0.1 ;
根据各第一导线上的信号变化总量为两个单位量、以及所述上下两个区域中均有触控发生，确定所述上下两个区域中各存在一个触控点；According to the total amount of signal changes on each of the first wires being two units, and touch occurs in both the upper and lower regions, it is determined that there is a touch point in each of the upper and lower regions;
根据信号变化的第一导线w1、第一导线w2、第一导线w5和第一导线w6分别连接的自电容电极的位置关系(此处，位置关系为相邻)，每个信号变化的第一导线上的信号变化量具体大小(此处，第一导线w1上的信号变化总量为0.9，第一导线w2上的信号变化总量为0.7，第一导线w5上的信号变化总量为0.1，第一导线w6上的信号变化总量为0.3)，以及所述上下两个区域中的自电容电极的图形，确定所述上区域中的触控点的位置与自电容电极A、自电容电极B、自电容电极E和自电容电极F均部分交叠，以及确定所述下区域中的触控点的位置与自电容电极a、自电容电极e和自电容电极f均部分交叠。According to the positional relationship of the self-capacitance electrodes connected to the first wire w1, the first wire w2, the first wire w5, and the first wire w6 of the signal change (here, the positional relationship is adjacent), the first time of each signal change The specific magnitude of the signal change on the wire (here, the total amount of signal change on the first wire w1 is 0.9, the total amount of signal change on the first wire w2 is 0.7, and the total amount of signal change on the first wire w5 is 0.1 , the total amount of signal change on the first wire w6 is 0.3), and the graphs of the self-capacitance electrodes in the upper and lower regions determine the relationship between the position of the touch point in the upper region and the self-capacitance electrode A, self-capacitance The electrode B, the self-capacitance electrode E and the self-capacitance electrode F are all partially overlapped, and the position of the touch point in the lower area is determined to partially overlap with the self-capacitance electrode a, the self-capacitance electrode e and the self-capacitance electrode f.
2、触控点为图3所示的P1点、P2点和P3点。2. The touch points are P1 point, P2 point and P3 point shown in FIG. 3 .
当手指同时触控到图3所示的P1点、P2点和P3点位置处时，触控效果图具体如图5d所示；When the finger touches the positions of P1, P2 and P3 shown in Figure 3 at the same time, the touch effect diagram is specifically shown in Figure 5d;
具体实施中，确定P1点、P2点和P3点的位置的实施方式与确定P1点和P2点的位置的实施方式类似，在此不再赘述。In specific implementation, the implementation of determining the positions of P1, P2 and P3 is similar to the implementation of determining the positions of P1 and P2, and will not be repeated here.
较佳地，本发明实施例中所述的电容式触摸结构可以应用于现有技术中任一种触摸屏，比如，外挂式触摸屏(Add on Mode Touch Panel)、覆盖表面式触摸屏(On Cell Touch Panel)、以及内嵌式触摸屏(In Cell Touch Panel)。Preferably, the capacitive touch structure described in the embodiment of the present invention can be applied to any touch screen in the prior art, such as Add on Mode Touch Panel, On Cell Touch Panel ), and the embedded touch screen (In Cell Touch Panel).
较佳地，本发明实施例提供一种内嵌式触摸屏，包括相对设置的上基板和下基板，还包括：本发明实施例中所述的电容式触摸结构；Preferably, an embodiment of the present invention provides an in-cell touch screen, which includes an upper substrate and a lower substrate oppositely arranged, and further includes: the capacitive touch structure described in the embodiment of the present invention;
所述自电容电极、区域电极、第一导线和第二导线设置于所述上基板面向所述下基板的一侧，或设置于所述下基板面向所述上基板的一侧。The self-capacitance electrodes, area electrodes, first wires and second wires are arranged on the side of the upper substrate facing the lower substrate, or on the side of the lower substrate facing the upper substrate.
实施中，内嵌式触摸屏包括本发明实施例中所述的电容式触摸结构，由于本发明实施例中所述的电容式触摸结构中的导线数量减少了，促使包括本发明实施例提供的所述电容式触摸结构的内嵌式触摸屏中的导线数量也减少了，有利于所述内嵌式触摸屏的窄边框设计，有利于减小所述内嵌式触摸屏中的触控盲区，以及有利于所述内嵌式触摸屏的成本的降低。In practice, the in-cell touch screen includes the capacitive touch structure described in the embodiment of the present invention. Since the number of wires in the capacitive touch structure described in the embodiment of the present invention is reduced, it is prompted to include all the features provided by the embodiment of the present invention. The number of wires in the embedded touch screen of the capacitive touch structure is also reduced, which is beneficial to the narrow frame design of the embedded touch screen, helps to reduce the touch blind area in the embedded touch screen, and is beneficial to The cost of the in-cell touch screen is reduced.
较佳地，位于边框处的周边走线一般设置在下基板上。Preferably, the peripheral wires located at the frame are generally arranged on the lower substrate.
较佳地，若所述自电容电极、区域电极、第一导线、以及第二导线设置在上基板时，第一导线和第二导线会通过封框胶中的金球的上下导通作用与位于下基板的周边走线电性连接；若所述自电容电极、区域电极、第一导线、以及第二导线设置在下基板时，第一导线和第二导线直接与位于下基板的周边走线电性连接。Preferably, if the self-capacitance electrode, the regional electrode, the first wire, and the second wire are arranged on the upper substrate, the first wire and the second wire will be connected to each other through the upper and lower conduction of the gold ball in the sealant. The peripheral wires located on the lower substrate are electrically connected; if the self-capacitance electrodes, the regional electrodes, the first wire, and the second wire are arranged on the lower substrate, the first wire and the second wire are directly connected to the peripheral wires located on the lower substrate. electrical connection.
较佳地，通过接线端子与所述周边走线电性相连的触控侦测芯片设置于电路板上，具体可以设置于位于显示装置背部的电路板上，可以设置于位于显示装置的边框区域的电路板上，也可以设置于所述下基板包含的柔性电路板上。Preferably, the touch detection chip that is electrically connected to the peripheral wiring through the terminal is disposed on the circuit board, specifically, it can be disposed on the circuit board located at the back of the display device, and can be disposed on the frame area of the display device The circuit board can also be arranged on the flexible circuit board included in the lower substrate.
较佳地，本发明实施例提供的所述的内嵌式触摸屏，还包括：设置于所述上基板面向所述下基板的一侧，或设置于所述下基板面向所述上基板的一侧的黑矩阵层；Preferably, the in-cell touch screen provided by the embodiment of the present invention further includes: a side of the upper substrate facing the lower substrate, or a side of the lower substrate facing the upper substrate side black matrix layer;
各所述自电容电极、区域电极、第一导线、以及第二导线在所述下基板上的正投影位于所述黑矩阵层在所述下基板上的正投影内。The orthographic projections of the self-capacitance electrodes, the area electrodes, the first wires, and the second wires on the lower substrate are located within the orthographic projections of the black matrix layer on the lower substrate.
实施中，由于各所述自电容电极、区域电极、第一导线、以及第二导线在所述下基板上的正投影位于所述黑矩阵层在所述下基板上的正投影内，所述自电容电极和区域电极产生的电场不会影响像素开口区域的电场，因此，不会影响正常显示。In implementation, since the orthographic projections of the self-capacitance electrodes, the area electrodes, the first wires, and the second wires on the lower substrate are located within the orthographic projections of the black matrix layer on the lower substrate, the The electric field generated by the self-capacitance electrode and the area electrode will not affect the electric field in the pixel opening area, and thus will not affect the normal display.
实施中，由于各所述自电容电极、区域电极、第一导线、以及第二导线在所述下基板上的正投影位于所述黑矩阵层在所述下基板上的正投影内，还可以避免影响触摸屏的透过率。In practice, since the orthographic projections of the self-capacitance electrodes, the regional electrodes, the first wires, and the second wires on the lower substrate are located within the orthographic projections of the black matrix layer on the lower substrate, it is also possible to Avoid affecting the transmittance of the touch screen.
较佳地，各所述自电容电极和区域电极在所述下基板上的正投影的图形为网格状结构，且位于所述黑矩阵层在所述下基板上的正投影内。Preferably, the orthographic projections of the self-capacitance electrodes and the regional electrodes on the lower substrate have a grid-like structure, and are located within the orthographic projection of the black matrix layer on the lower substrate.
实施中，触摸屏的密度通常在毫米级，而显示屏的密度通常在微米级，因此，一般一个自电容电极或区域电极会对应显示屏中的多个像素单元，为了保证各自电容电极和区域电极不占用像素单元的开口区域，可以将各自电容电极和区域电极中与像素单元的开口区域对应的位置挖去，本发明实施例中所指的密度是指的触摸屏的自电容电极的间距(Pitch)或者显示屏的像素单元的间距。In practice, the density of the touch screen is usually at the millimeter level, while the density of the display screen is usually at the micron level. Therefore, generally one self-capacitance electrode or regional electrode will correspond to multiple pixel units in the display screen. In order to ensure that the respective capacitance electrodes and regional electrodes The opening area of the pixel unit is not occupied, and the positions corresponding to the opening area of the pixel unit in the respective capacitive electrodes and regional electrodes can be dug out. The density referred to in the embodiment of the present invention refers to the distance between the self-capacitance electrodes of the touch screen (Pitch ) or the pixel unit pitch of the display.
比如，以各所述自电容电极在所述下基板上的正投影的图形为位于所述黑矩阵层在所述下基板上的正投影内的网格状结构为例，如图7所示，各自电容电极10与像素单元的开口区域对应的位置被挖去，即可以将各自电容电极10的图形设计为在下基板上的正投影位于黑矩阵层100在下基板上的正投影内的网格状结构，并且为了确保显示的均匀性，一般在各像素单元中的每个亚像素单元的间隙处均设置有自电容电极10，其中每一组RGB亚像素单元组成一个像素单元。For example, take the orthographic projection of each self-capacitance electrode on the lower substrate as a grid-like structure located in the orthographic projection of the black matrix layer on the lower substrate as an example, as shown in Figure 7 The position corresponding to the opening area of the respective capacitive electrodes 10 and the pixel unit is dug out, that is, the pattern of the respective capacitive electrodes 10 can be designed as a grid within the orthographic projection of the black matrix layer 100 on the lower substrate. shape structure, and in order to ensure the uniformity of the display, generally, a self-capacitance electrode 10 is provided at the gap of each sub-pixel unit in each pixel unit, wherein each group of RGB sub-pixel units constitutes a pixel unit.
较佳地，在将所述自电容电极、区域电极、第一导线和第二导线设置于所述上基板面向所述下基板的一侧时，可以将所述自电容电极、区域电极、第一导线和第二导线设置于上基板面向下基板一侧的任一位置；Preferably, when the self-capacitance electrodes, regional electrodes, first wires and second wires are arranged on the side of the upper substrate facing the lower substrate, the self-capacitance electrodes, regional electrodes, second wires A wire and a second wire are arranged at any position on the side of the upper substrate facing the lower substrate;
比如，所述上基板面向下基板的一侧依次层叠有黑矩阵层、彩色滤光层、平坦层和隔垫物层，其中：For example, the side of the upper substrate facing the lower substrate is sequentially stacked with a black matrix layer, a color filter layer, a flat layer and a spacer layer, wherein:
所述自电容电极和区域电极位于所述黑矩阵层和彩色滤光层之间，所述第一导线和第二导线位于所述彩色滤光层之上；或者，The self-capacitance electrode and the area electrode are located between the black matrix layer and the color filter layer, and the first wire and the second wire are located on the color filter layer; or,
所述自电容电极和区域电极位于所述彩色滤光层和平坦层之间，所述第一导线和第二导线位于所述平坦层之上；或者，The self-capacitance electrode and the area electrode are located between the color filter layer and the flat layer, and the first wire and the second wire are located on the flat layer; or,
所述自电容电极和区域电极位于所述平坦层和所述隔垫物层之间，所述第一导线和第二导线位于所述上基板与所述平坦层之间。The self-capacitance electrode and the area electrode are located between the planar layer and the spacer layer, and the first wire and the second wire are located between the upper substrate and the planar layer.
下面以所述自电容电极和区域电极位于所述黑矩阵层和彩色滤光层之间， 且所述第一导线和第二导线位于所述彩色滤光层之上为例，对本发明实施例中所述的内嵌式触摸屏的实施方式进行详细说明。In the following, the self-capacitance electrode and the regional electrode are located between the black matrix layer and the color filter layer, and the first wire and the second wire are located on the color filter layer as an example, the embodiment of the present invention The embodiment of the in-cell touch screen described in will be described in detail.
如图6所示，本发明实施例中所述的内嵌式触摸屏，包括：As shown in Figure 6, the embedded touch screen described in the embodiment of the present invention includes:
相对设置的上基板01和下基板02；The upper substrate 01 and the lower substrate 02 arranged oppositely;
位于上基板01面向下基板02一侧的黑矩阵层100；The black matrix layer 100 located on the side of the upper substrate 01 facing the lower substrate 02;
位于黑矩阵层100面向下基板02一侧的自电容电极10和区域电极20所在膜层；The film layer where the self-capacitance electrode 10 and the regional electrode 20 are located on the side of the black matrix layer 100 facing the lower substrate 02;
位于自电容电极10和区域电极20所在膜层面向下基板02一侧的彩色滤光层03；The color filter layer 03 located on the film layer where the self-capacitance electrode 10 and the regional electrode 20 are located is on the lower side of the substrate 02;
位于彩色滤光层03面向下基板02一侧的第一导线和第二导线所在膜层(图6中未示出)；其中，第一导线通过彩色滤光层中的过孔(图6中未示出)与对应的自电容电极10连接，第二导线通过彩色滤光层中的过孔与对应的区域电极20连接；The film layer (not shown in Figure 6) where the first wire and the second wire are located on the side of the color filter layer 03 facing the lower substrate 02; wherein the first wire passes through the via hole in the color filter layer (in Figure 6 not shown) is connected to the corresponding self-capacitance electrode 10, and the second wire is connected to the corresponding regional electrode 20 through the via hole in the color filter layer;
位于所述第一导线和第二导线所在膜层面向下基板02一侧的平坦层04。A flat layer 04 on the side of the lower substrate 02 at the film layer where the first wire and the second wire are located.
实施中，将自电容电极和区域电极所在膜层设置在黑矩阵层与彩色滤光层之间，将第一导线和第二导线所在膜层设置在彩色滤光层面向下基板的一侧，可以减少人体电容对在第一导线和第二导线上传输的信号的干扰。In implementation, the film layer where the self-capacitance electrode and the regional electrode are located is arranged between the black matrix layer and the color filter layer, and the film layer where the first wire and the second wire are located is arranged on the side of the color filter layer facing downward to the substrate, The interference of the human body capacitance on the signals transmitted on the first wire and the second wire can be reduced.
需要说明的是，上述均是以所述第一导线与自电容电极异层设置，所述第二导线与区域电极异层设置，且所述第一导线与第二导线同层设置为例，对在所述上基板面向所述下基板的一侧设置所述自电容电极、区域电极、第一导线和第二导线的实施方式进行的介绍；在所述自电容电极、区域电极、第一导线和第二导线所处膜层的实施方式为其他实施方式时，在所述上基板面向所述下基板的一侧设置所述自电容电极、区域电极、第一导线和第二导线的实施方式均与上述所述的实施方式类似，在此不再赘述。It should be noted that the above are all based on the example that the first wire and the self-capacitance electrode are arranged in different layers, the second wire and the regional electrode are arranged in a different layer, and the first wire and the second wire are arranged in the same layer as an example, An introduction to the embodiment of setting the self-capacitance electrodes, regional electrodes, first wires and second wires on the side of the upper substrate facing the lower substrate; When the embodiment of the film layer where the wire and the second wire are located is another embodiment, the self-capacitance electrode, the regional electrode, the first wire and the second wire are arranged on the side of the upper substrate facing the lower substrate. The manners are similar to the above-mentioned implementation manners, and will not be repeated here.
较佳地，在将所述自电容电极、区域电极、第一导线和第二导线设置于所述下基板面向所述上基板的一侧时，可以将所述自电容电极、区域电极、第一 导线和第二导线设置于所述下基板面向所述上基板一侧的任一位置；Preferably, when the self-capacitance electrodes, regional electrodes, first wires and second wires are arranged on the side of the lower substrate facing the upper substrate, the self-capacitance electrodes, regional electrodes, second wires A wire and a second wire are arranged at any position on the side of the lower substrate facing the upper substrate;
将所述自电容电极、区域电极、第一导线和第二导线设置于所述下基板面向所述上基板的一侧的具体实施方式与将所述自电容电极、区域电极、第一导线和第二导线设置于所述上基板面向所述下基板的一侧的具体实施方式类似，在此不再赘述。The specific implementation manner of arranging the self-capacitance electrodes, regional electrodes, first wires and second wires on the side of the lower substrate facing the upper substrate is the same as that of arranging the self-capacitance electrodes, regional electrodes, first wires and The specific implementation manner in which the second wire is disposed on the side of the upper substrate facing the lower substrate is similar, and details are not repeated here.
较佳地，在所述自电容电极、区域电极、第一导线和第二导线设置于所述下基板面向所述上基板的一侧时，Preferably, when the self-capacitance electrodes, regional electrodes, first wires and second wires are arranged on the side of the lower substrate facing the upper substrate,
将所述自电容电极和区域电极作为公共电极层使用。The self-capacitance electrodes and the regional electrodes are used as a common electrode layer.
实施中，将所述自电容电极和区域电极作为公共电极层使用，可以节省一层膜层，降低制作本发明实施例中的内嵌式触摸屏的复杂度。In practice, using the self-capacitance electrodes and the regional electrodes as the common electrode layer can save one film layer and reduce the complexity of manufacturing the in-cell touch screen in the embodiment of the present invention.
基于同一发明构思，本发明实施例还提供了一种显示装置，包括本发明实施例提供的所述内嵌式触摸屏；Based on the same inventive concept, an embodiment of the present invention also provides a display device, including the embedded touch screen provided by the embodiment of the present invention;
所述显示装置可以为：手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。该显示装置的实施可以参见上述内嵌式触摸屏的实施例，重复之处不再赘述。The display device may be any product or component with a display function such as a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, a navigator, and the like. For the implementation of the display device, reference may be made to the above-mentioned embodiments of the embedded touch screen, and repeated descriptions will not be repeated.
实施中，由于本发明实施例提供的所述内嵌式触摸屏中的导线数量减少了，促使包括本发明实施例提供的所述内嵌式触摸屏的显示装置中的导线数量也减少了，有利于所述显示装置的窄边框设计，有利于减小所述显示装置中的触控盲区，以及有利于所述显示装置的成本的降低。In practice, since the number of wires in the in-cell touch screen provided by the embodiment of the present invention is reduced, the number of wires in the display device including the in-cell touch screen provided by the embodiment of the invention is also reduced, which is beneficial to The narrow frame design of the display device is beneficial to reducing the touch blind area in the display device and reducing the cost of the display device.
基于同一发明构思，本发明实施例还提供了一种显示装置，包括外挂式触摸屏，所述外挂式触摸屏包括：本发明实施例提供的所述电容式触摸结构；Based on the same inventive concept, an embodiment of the present invention also provides a display device, including an external touch screen, and the external touch screen includes: the capacitive touch structure provided by the embodiment of the present invention;
所述显示装置可以为：手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。该显示装置的实施可以参见上述电容式触摸结构的实施例，重复之处不再赘述。The display device may be any product or component with a display function such as a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, a navigator, and the like. For the implementation of the display device, reference may be made to the above-mentioned embodiments of the capacitive touch structure, and repeated descriptions will not be repeated.
实施中，由于本发明实施例提供的所述电容式触摸结构中的导线数量减少了，促使包括本发明实施例提供的所述电容式触摸结构的外挂式触摸屏中的导 线数量减少了，进而促使包含所述的外挂式触摸屏的显示装置中的导线数量也减少了，有利于所述显示装置的窄边框设计，有利于减小所述显示装置中的触控盲区，以及有利于所述显示装置的成本的降低。In practice, since the number of wires in the capacitive touch structure provided by the embodiment of the present invention is reduced, the number of wires in the plug-in touch screen including the capacitive touch structure provided by the embodiment of the present invention is reduced, thereby promoting The number of wires in the display device including the external touch screen is also reduced, which is beneficial to the narrow frame design of the display device, helps to reduce the touch blind area in the display device, and is beneficial to the display device. cost reduction.
基于同一发明构思，本发明实施例还提供了一种对所述显示装置的扫描方法，包括：Based on the same inventive concept, an embodiment of the present invention also provides a scanning method for the display device, including:
在一帧时间内，分时进行触摸扫描和显示扫描；其中：In one frame time, touch scanning and display scanning are performed in time-sharing; where:
在触摸扫描时间内，触控侦测芯片通过与各区域电极相连的第二导线和周边走线，分时向各区域电极施加驱动信号；以及，During the touch scanning time, the touch detection chip applies driving signals to the electrodes in each region in time-division through the second wire connected to the electrodes in each region and the peripheral wiring; and,
在向每个区域电极施加驱动信号的时间内，触控侦测芯片通过与各自电容电极相连的第一导线和周边走线，分时向各自电容电极施加驱动信号；接收各自电容电极和区域电极的反馈信号，根据所述区域电极的反馈信号，判断触控位置所在的区域，并根据所述自电容电极的反馈信号判断出触控位置。During the time when the drive signal is applied to each regional electrode, the touch detection chip applies the drive signal to the respective capacitive electrodes in time-division through the first wire connected to the respective capacitive electrodes and the peripheral wiring; receives the respective capacitive electrodes and the regional electrodes According to the feedback signal of the regional electrode, the area where the touch position is located is determined, and the touch position is determined according to the feedback signal of the self-capacitance electrode.
实施中，分时进行触摸扫描和显示扫描，可以降低显示信号和触控信号之间的相互干扰，提高画面品质和触控准确性；并且，在具体实施中，可以将显示驱动芯片和触控侦测芯片整合为一个芯片，以降低生产成本。During the implementation, the touch scanning and the display scanning are performed in a time-sharing manner, which can reduce the mutual interference between the display signal and the touch signal, and improve the picture quality and touch accuracy; and, in specific implementation, the display driver chip and the touch The detection chip is integrated into one chip to reduce production cost.
下面将结合图8a，对本发明实施例中对所述显示装置的扫描方法进行详细介绍。The scanning method of the display device in the embodiment of the present invention will be described in detail below with reference to FIG. 8a.
如图8a所示，将显示装置显示每一帧(V-sync)的时间分成显示扫描时间段(Display)和触摸扫描时间段(Touch)，比如，显示装置的显示一帧的时间为16.7ms，选取其中5ms作为触摸扫描时间段，其他的11.7ms作为显示扫描时间段，当然也可以根据IC芯片的处理能力适当的调整两者的时长，在此不做具体限定；As shown in Figure 8a, the time for displaying each frame (V-sync) of the display device is divided into a display scan time period (Display) and a touch scan time period (Touch). For example, the time for a display device to display a frame is 16.7 ms , select 5ms as the touch scanning time period, and the other 11.7ms as the display scanning time period. Of course, the duration of the two can be adjusted appropriately according to the processing capability of the IC chip, and no specific limitation is made here;
在显示扫描时间段(Display)，对显示装置中的每条栅极信号线Gate1，Gate2……Gate n依次施加栅扫描信号，对数据信号线Data施加灰阶信号，实现显示功能；In the display scan time period (Display), a gate scan signal is sequentially applied to each gate signal line Gate1, Gate2...Gate n in the display device, and a grayscale signal is applied to the data signal line Data to realize the display function;
在触控时间段(Touch)，触控侦测芯片分时向各区域电极pad1……padm 施加驱动信号；以及，在向每个区域电极施加驱动信号的时间内，触控侦测芯片分时向各自电容电极Cx1……Cxn施加驱动信号；同时，接收各自电容电极Cx1……Cxn和各区域电极pad1……padm的反馈信号，通过对各区域电极pad1……padm的反馈信号的分析，判断出触控位置所在的区域，并通过对各自电容电极Cx1……Cxn的反馈信号的分析，判断出触控位置，以实现触控功能。During the touch time period (Touch), the touch detection chip applies the driving signal to each regional electrode pad1 ... padm in time; and, in the time of applying the driving signal to each regional electrode, the touch detection chip Apply driving signals to the respective capacitive electrodes Cx1...Cxn; at the same time, receive the feedback signals of the respective capacitive electrodes Cx1...Cxn and the regional electrodes pad1...padm, and judge by analyzing the feedback signals of the regional electrodes pad1...padm The area where the touch position is located is determined, and the touch position is determined by analyzing the feedback signals of the respective capacitive electrodes Cx1 . . . Cxn, so as to realize the touch function.
较佳地，在所述自电容电极和区域电极设置于所述下基板面向所述上基板的一侧，且将所述自电容电极和区域电极作为公共电极层使用时，在显示扫描时间段(Display)，各自电容电极和区域电极上施加Vcom电压。Preferably, when the self-capacitance electrode and the regional electrode are arranged on the side of the lower substrate facing the upper substrate, and the self-capacitance electrode and the regional electrode are used as a common electrode layer, during the display scanning period (Display), the Vcom voltage is applied to the respective capacitor electrodes and area electrodes.
实施中，可以保证显示装置正常进行显示。During implementation, it can be ensured that the display device performs display normally.
较佳地，在所述自电容电极和区域电极设置于所述下基板面向所述上基板的一侧时，在显示扫描时间段(Display)，各自电容电极和区域电极上施加floating电压(即，悬空)。Preferably, when the self-capacitance electrodes and the regional electrodes are arranged on the side of the lower substrate facing the upper substrate, during the display scanning period (Display), a floating voltage (i.e. , left unconnected).
实施中，可以避免所述上基板上的自电容电极和区域电极与所述下基板上的电极形成正对电场，以在一定程度上避免对显示装置的显示产生消极影响。In practice, it is possible to prevent the self-capacitance electrodes and the regional electrodes on the upper substrate from forming a direct electric field with the electrodes on the lower substrate, so as to avoid negative influence on the display of the display device to a certain extent.
较佳地，在触摸扫描时间内，触控侦测芯片也可以同时向各区域电极施加驱动信号；并且，分时向各自电容电极施加驱动信号；Preferably, during the touch scanning time, the touch detection chip can also apply driving signals to the electrodes in each area at the same time; and, apply the driving signals to the respective capacitive electrodes in time-sharing;
比如，如图8b所示，在触控时间段(Touch)，触控侦测芯片同时向各区域电极pad1……padm施加驱动信号，且分时向各自电容电极Cx1……Cxn施加驱动信号；同时，接收各自电容电极Cx1……Cxn和各区域电极pad1……padm的反馈信号，通过对反馈信号的分析，判断触控位置，以实现触控功能。For example, as shown in FIG. 8b, during the touch period (Touch), the touch detection chip simultaneously applies driving signals to the electrodes pad1...padm in each area, and applies driving signals to the respective capacitive electrodes Cx1...Cxn in time-sharing; At the same time, receiving feedback signals from the respective capacitive electrodes Cx1 . . . Cxn and the regional electrodes pad1 .
较佳地，在触摸扫描时间内，触控侦测芯片也可以分时向各区域电极、以及各自电容电极施加驱动信号；Preferably, during the touch scanning time, the touch detection chip can also apply driving signals to the electrodes in each area and the respective capacitive electrodes in time division;
比如，如图8c所示，在触控时间段(Touch)，触控侦测芯片分时向各区域电极pad1……padm，以及各自电容电极Cx1……Cxn施加驱动信号；同时，接收各自电容电极Cx1……Cxn和各区域电极pad1……padm的反馈信号，通 过对反馈信号的分析，判断触控位置，以实现触控功能。For example, as shown in Figure 8c, during the touch period (Touch), the touch detection chip applies drive signals to the electrodes pad1...padm of each area and the respective capacitor electrodes Cx1...Cxn in time-sharing; The feedback signals of the electrodes Cx1...Cxn and the electrodes pad1...padm in each region are analyzed to determine the touch position, so as to realize the touch function.
较佳地，在分时向各自电容电极施加驱动信号时，触控侦测芯片可以横向逐个扫描各自电容电极，以分时向各自电容电极施加驱动信号；也可以竖向逐个扫描各自电容电极，以分时向各自电容电极施加驱动信号。Preferably, when applying drive signals to respective capacitive electrodes in time-division, the touch detection chip can horizontally scan respective capacitive electrodes one by one to apply drive signals to respective capacitive electrodes in time-division; it can also vertically scan respective capacitive electrodes one by one, The drive signal is applied to the respective capacitor electrodes in time division.
尽管已描述了本发明的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。While preferred embodiments of the invention have been described, additional changes and modifications to these embodiments can be made by those skilled in the art once the basic inventive concept is appreciated. Therefore, it is intended that the appended claims be construed to cover the preferred embodiment as well as all changes and modifications which fall within the scope of the invention.
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and equivalent technologies thereof, the present invention also intends to include these modifications and variations.
| Application Number | Priority Date | Filing Date | Title |
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| CN201410241053.2ACN104035639B (en) | 2014-05-30 | Capacitance touch structure, In-cell touch panel, display device and scan method thereof | |
| US14/653,438US9933899B2 (en) | 2014-05-30 | 2014-09-20 | Capacitive touch structure, in-cell touch panel, display device and scanning method |
| EP14868725.4AEP3153956B1 (en) | 2014-05-30 | 2014-09-20 | Capacitive touch structure, embedded touchscreen, display device and scanning method therefor |
| PCT/CN2014/087006WO2015180315A1 (en) | 2014-05-30 | 2014-09-20 | Capacitive touch structure, embedded touchscreen, display device and scanning method therefor |
| Application Number | Priority Date | Filing Date | Title |
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| CN201410241053.2ACN104035639B (en) | 2014-05-30 | Capacitance touch structure, In-cell touch panel, display device and scan method thereof |
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| CN104035639A CN104035639A (en) | 2014-09-10 |
| CN104035639Btrue CN104035639B (en) | 2016-11-30 |
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