CN100489755C - Capacitive touch pad with low impedance structure and manufacturing method thereof - Google Patents

Abstract

The invention provides a capacitive touch pad with a low impedance structure and a manufacturing method thereof, and particularly relates to a capacitive touch pad, a display device using the capacitive touch pad and a method for manufacturing the capacitive touch pad. The capacitive touch panel comprises a first electrode layer, a second electrode layer and a dielectric layer sandwiched therebetween, wherein the first electrode layer and the second electrode layer are overlapped. The first electrode layer comprises a plurality of first electrode strings A and a plurality of first electrode strings B which are distributed along a first direction. The first A electrode string and the first B electrode string respectively comprise a plurality of first direction electrodes. The second electrode layer comprises a plurality of second electrode strings and second electrode strings which are distributed in a second direction. The first electrode string A and the first electrode string B form a non-connection state in the first electrode layer; however, the first electrode a and the first electrode b are synchronously subjected to group signal detection of the system, wherein when the first electrode a and the first electrode b are arranged in parallel, the first electrode b corresponding to the adjacent first electrode a is not adjacent.

Description

Translated fromChinese

低阻抗结构的电容式触控板及其制造方法Capacitive touch panel with low impedance structure and manufacturing method thereof

技术领域technical field

本发明涉及一种电容式触控板以及使用此电容式触控板的显示装置。The invention relates to a capacitive touch panel and a display device using the capacitive touch panel.

背景技术Background technique

显示面板及使用显示面板的平面显示装置已渐渐成为各类显示装置的主流。例如家用的薄型电视、个人计算机及膝上型计算机的液晶监视器、移动电话及数字相机的显示屏等，均为大量使用显示面板的产品。随着产品设计渐渐趋向于使用者导向，为考虑使用者的操作便利性，具有触控输入功能的显示面板已逐渐成为产业发展的重点。Display panels and flat display devices using display panels have gradually become the mainstream of various display devices. For example, flat-screen TVs for home use, liquid crystal monitors for personal computers and laptop computers, display screens for mobile phones and digital cameras, etc., are all products that use a large number of display panels. As product design gradually tends to be user-oriented, display panels with touch input functions have gradually become the focus of industrial development in order to consider the user's operation convenience.

以液晶显示面板为例，如图1所示，传统的具有触控输入功能的液晶显示面板包含显示面板10及触控感应板30。触控感应板30设置于显示面板10的显示面11上。换言之，显示面板10是通过触控感应板30向外显示影像。目前较广为使用的触控感应板30技术包含电阻式及电容式两种。Taking a liquid crystal display panel as an example, as shown in FIG. 1 , a conventional liquid crystal display panel with a touch input function includes adisplay panel 10 and atouch sensor panel 30 . Thetouch sensor panel 30 is disposed on thedisplay surface 11 of thedisplay panel 10 . In other words, thedisplay panel 10 displays images externally through thetouch sensor panel 30 . Currently, the technologies of thetouch sensor panel 30 widely used include resistive and capacitive.

以电阻式的触控感应板30而言，其驱动原理是利用电压降的方式来寻找接触点的坐标。触控感应板30分为上下两层，且在二维方向上分别施加一电压差。当使用者点击触控感应板30上的接触点时，即于此接触点产生导通回路。此一导通回路即于系统中产生电压降，使系统得以判断接触点的位置。然而此类触控感应板30并无法同时作多点输入，且无法进行指纹识别。此外，由于使用者需施加一定的压力始能使接触点产生导通回路，因此此类触控感应板易受最低作动力的限制。For the resistivetouch sensor panel 30 , its driving principle is to use voltage drop to find the coordinates of the contact point. Thetouch sensor panel 30 is divided into upper and lower layers, and a voltage difference is applied in two-dimensional directions respectively. When the user clicks a contact point on thetouch sensor panel 30 , a conduction loop is generated at the contact point. This conduction loop produces a voltage drop in the system, enabling the system to determine the position of the contact point. However, this type oftouch sensor panel 30 cannot perform multi-point input at the same time, and cannot perform fingerprint recognition. In addition, since the user needs to apply a certain amount of pressure to create a conduction circuit at the contact point, this type of touch sensor panel is easily limited by the minimum operating force.

电容式触控感应板的驱动原理则与电阻式触控感应板不同。在图1b所示的传统电容式触控感应板而言，感应板30上是在上下层中分别布设有X方向及Y方向的电极31。当使用者以手指或其它物体接触感应板时，即会产生电容差异。此时系统即可据以计算出接触的位置。如图1b所示，同一行或列的电极31分别形成连续的电极串，并依X方向及Y方向上排列的顺序扫描。当同一行或列的电极31数量过多时，易使系统整体的电阻及电容值过高。此外，由于每一行或列的电极串需分次扫描，因此系统的检测及反应时间不易缩短。The driving principle of the capacitive touch sensor panel is different from that of the resistive touch sensor panel. For the traditional capacitive touch sensor panel shown in FIG. 1 b , electrodes 31 in the X direction and the Y direction are respectively arranged on the upper and lower layers of thesensor panel 30 . When the user touches the sensing board with a finger or other objects, a difference in capacitance occurs. At this time, the system can calculate the contact position accordingly. As shown in FIG. 1 b , the electrodes 31 in the same row or column respectively form continuous electrode strings, and are scanned in the sequence arranged in the X direction and the Y direction. When there are too many electrodes 31 in the same row or column, the overall resistance and capacitance of the system tend to be too high. In addition, since the electrode strings in each row or column need to be scanned several times, the detection and response time of the system cannot be shortened easily.

发明内容Contents of the invention

本发明的一目的在于提供一种电容式触控板，具有较低的系统整体耦合电容及电阻。An object of the present invention is to provide a capacitive touch panel with lower overall coupling capacitance and resistance of the system.

本发明的另一目的在于提供一种电容式触控板，具有较短的扫描检测及反应时间。Another object of the present invention is to provide a capacitive touch panel with shorter scanning detection and response time.

本发明的另一目的在于提供一种电容式触控板，具有较小的系统负荷。Another object of the present invention is to provide a capacitive touch panel with less system load.

本发明的另一目的在于提供一种显示装置，使用具有较小系统负荷的电容式触控板。Another object of the present invention is to provide a display device using a capacitive touch panel with less system load.

本发明的显示装置包含显示面板及电容式触控板。电容式触控板优选地设置于显示面板的显示面上；显示面板于显示面上的影像可经由电容式触控板向外显示。当使用者点选显示面上的影像时，电容式触控板即可检测使用者点选的位置，再将信号传至后端处理器处理。The display device of the present invention includes a display panel and a capacitive touch panel. The capacitive touch panel is preferably disposed on the display surface of the display panel; the image of the display panel on the display surface can be displayed outside through the capacitive touch panel. When the user clicks on the image on the display surface, the capacitive touch panel can detect the position clicked by the user, and then transmit the signal to the back-end processor for processing.

电容式触控板包含第一电极层、第二电极层及介电层。第一电极层与第二电极层相重叠；介电层则夹设于第一电极层与第二电极层间，以提供必要的信号隔离。第一电极层包含多条沿第一方向分布的第一甲电极串及第一乙电极串。每一第一甲电极串及第一乙电极串分别包含有多个第一方向电极。第二电极层包含多条在第二方向上分布的第二甲电极串及第二乙电极串，其中每一所述第二甲电极串及所述第二乙电极串分别具有多个所述第二方向电极。The capacitive touch panel includes a first electrode layer, a second electrode layer and a dielectric layer. The first electrode layer overlaps with the second electrode layer; the dielectric layer is sandwiched between the first electrode layer and the second electrode layer to provide necessary signal isolation. The first electrode layer includes a plurality of first A-electrode strings and first B-electrode strings distributed along the first direction. Each of the first A electrode string and the first B electrode string respectively includes a plurality of electrodes in the first direction. The second electrode layer includes a plurality of second A electrode strings and second B electrode strings distributed in the second direction, wherein each of the second A electrode strings and the second B electrode strings has a plurality of the The second direction electrode.

第一甲电极串与第一乙电极串在第一电极层内形成非连接状态，彼此的信号并无法在第一电极层产生共通。然而第一甲电极串与第一乙电极串同步接受系统的群组信号检测，其中当所述第一甲电极串和所述第一乙电极串平行排列时，相邻的所述第一甲电极串所分别对应的所述第一乙电极串不相邻。因此当第一甲电极串或第一乙电极串检测到信号变化时，系统会判定为同一状况而不加以区分。The first electrode series A and the first electrode series B form a non-connected state in the first electrode layer, and signals from each other cannot be shared in the first electrode layer. However, the first A electrode string and the first B electrode string receive the group signal detection of the system synchronously, wherein when the first A electrode string and the first B electrode string are arranged in parallel, the adjacent first A electrode string The first B electrode strings corresponding to the electrode strings are not adjacent to each other. Therefore, when the first A-electrode string or the first B-electrode string detects a signal change, the system will determine that it is the same situation without making a distinction.

第一甲电极串与第一乙电极串可以共线排列或平行排列方式设置于第一电极层中。当第一甲电极串与第一乙电极串位于第一方向上的同一行列时，第一甲电极串与第一乙电极串上检测到信号均表示使用者点选位置位于第一甲电极串与第一乙电极串所共线的行列上。由于第一甲电极串与第一乙电极串的长度及其上设置的第一方向电极数量均少于原本未切开前的电极串，因此第一甲电极串与第一乙电极串上产生的电阻及耦合电容均少于未切开的电极串，有利于减少系统整体的负荷。The first A electrode series and the first B electrode series can be disposed in the first electrode layer in a collinear arrangement or a parallel arrangement. When the first A-electrode string and the first B-electrode string are in the same row and column in the first direction, the signals detected on the first A-electrode string and the first B-electrode string both indicate that the position clicked by the user is located in the first A-electrode string On the row and column collinear with the first B electrode string. Since the length of the first A electrode string and the first B electrode string and the number of electrodes in the first direction arranged on them are less than the original electrode string before the incision, the first A electrode string and the first B electrode string generate The resistance and coupling capacitance of the electrode string are less than those of the uncut electrode string, which is beneficial to reduce the overall load of the system.

当第一甲电极串与第一乙电极串呈平行排列而非共线设置时，第一甲电极串与第一乙电极串在正交的第二方向维度上代表的坐标值不同。在进行信号检测时，第一甲电极串与第一乙电极串被视为同一组，而同时加以检测。此种设计于同一时点检测不同的电极串，因此可节省整体的检测时间。When the first A electrode series and the first B electrode series are arranged in parallel instead of collinearly, the coordinate values represented by the first A electrode series and the first B electrode series in the second orthogonal direction dimension are different. When performing signal detection, the first A electrode string and the first B electrode string are regarded as the same group, and are detected at the same time. This design detects different electrode strings at the same time point, thus saving the overall detection time.

在上述电容式触控板中，所述第一甲电极串及所述第一乙电极串于该第一方向上位于同一行或同一列。In the above-mentioned capacitive touch panel, the first A-electrode string and the first B-electrode string are located in the same row or column in the first direction.

在上述电容式触控板中，该第一电极层包含有多条相互平行的所述第一甲电极串及相对应的多条所述第一乙电极串，相邻的所述第一甲电极串具有相异数量的所述第一方向电极，使所述多条第一甲电极串与所述多条第一乙电极串间之间隙呈锯齿分布及斜线分布其中之一。In the above-mentioned capacitive touch panel, the first electrode layer includes a plurality of parallel first A electrode strings and a plurality of corresponding first B electrode strings, and the adjacent first A electrode strings The electrode strings have different numbers of electrodes in the first direction, so that the gaps between the multiple first A electrode strings and the multiple first B electrode strings are in one of a zigzag distribution and an oblique distribution.

在上述电容式触控板中，该第一电极层包含有多条相互平行的所述第一甲电极串及相对应的多条所述第一乙电极串，相邻的所述第一甲电极串具有相同数量的该第一方向电极。In the above-mentioned capacitive touch panel, the first electrode layer includes a plurality of parallel first A electrode strings and a plurality of corresponding first B electrode strings, and the adjacent first A electrode strings The electrode strings have the same number of electrodes in the first direction.

在上述电容式触控板中，还包含一第一连接垫及一第二连接垫设置于该第一电极层外，其中所述第一甲电极串由该第一电极层的一第一端延伸一导线与该第一连接垫耦接；所述第一乙电极串由该第一电极层的一第二端延伸一导线与该第二连接垫耦接。In the above-mentioned capacitive touch panel, it also includes a first connection pad and a second connection pad disposed outside the first electrode layer, wherein the first A electrode string is formed from a first end of the first electrode layer Extending a wire to couple with the first connection pad; extending a wire from a second end of the first electrode layer to couple with the second connection pad.

在上述电容式触控板中，还包含一第一连接垫设置于该第一电极层外，其中所述第一甲电极串通过一导线于该第一电极层外与所述第一乙电极串耦接，该导线并耦接于该第一连接垫。In the above-mentioned capacitive touch panel, it also includes a first connection pad disposed outside the first electrode layer, wherein the first A electrode string is connected to the first B electrode through a wire outside the first electrode layer The wire is coupled to the first connection pad.

在上述电容式触控板中，相邻的部分所述多条第二方向电极串联形成一第二甲电极串，另外多条相邻的部分所述多条第二方向电极则串联形成一第二乙电极串，其中所述第二甲电极串与所述第二乙电极串于该第二电极层内形成非连接状态，且所述第二甲电极串与所述第二乙电极串同步接受一群组信号检测。In the above-mentioned capacitive touch panel, the plurality of adjacent electrodes in the second direction are connected in series to form a second A electrode string, and in addition, the plurality of adjacent electrodes in the second direction are connected in series to form a first electrode string. Two B electrode strings, wherein the second A electrode string and the second B electrode string form a non-connected state in the second electrode layer, and the second A electrode string is synchronized with the second B electrode string Accepts a group of signal detections.

在上述电容式触控板中，该第二电极层包含有多条相互平行的所述第二甲电极串及相对应的多条所述第二乙电极串，相邻的所述第二甲电极串具有相异数量的该第二方向电极，使所述多条第二甲电极串与所述多条第二乙电极串间之间隙呈锯齿分布及斜线分布其中之一。In the above-mentioned capacitive touch panel, the second electrode layer includes a plurality of parallel second A electrode strings and a plurality of corresponding second B electrode strings, and the adjacent second A electrode strings The electrode strings have different numbers of electrodes in the second direction, so that the gaps between the plurality of second A electrode strings and the plurality of second B electrode strings are in one of a zigzag distribution and an oblique distribution.

在上述电容式触控板中，该第二电极层包含有多条相互平行的所述第二甲电极串及相对应的多条所述第二乙电极串，相邻的所述第二甲电极串具有相同数量的所述第二方向电极。In the above-mentioned capacitive touch panel, the second electrode layer includes a plurality of parallel second A electrode strings and a plurality of corresponding second B electrode strings, and the adjacent second A electrode strings The electrode strings have the same number of electrodes in the second direction.

在上述电容式触控板中，还包含一第三连接垫及一第四连接垫设置于该第二电极层外，其中所述第二甲电极串由该第二电极层的一第一端延伸一导线与该第三连接垫耦接；所述第二乙电极串由该第二电极层的一第二端延伸一导线与该第四连接垫耦接。In the above-mentioned capacitive touch panel, it also includes a third connection pad and a fourth connection pad disposed outside the second electrode layer, wherein the second A electrode string is formed from a first end of the second electrode layer Extending a wire to couple with the third connection pad; extending a wire from a second end of the second electrode layer to couple with the fourth connection pad.

在上述电容式触控板中，还包含一第三连接垫设置于该第二电极层外，其中所述第二甲电极串通过一导线于该第二电极层外与所述第二乙电极串耦接，该导线并耦接于该第三连接垫。In the above-mentioned capacitive touch panel, a third connection pad is also included outside the second electrode layer, wherein the second A electrode string is connected to the second B electrode through a wire outside the second electrode layer The wire is coupled to the third connection pad.

在上述电容式触控板中，所述第一甲电极串及所述第一乙电极串于该第一电极层中平行排列。In the above capacitive touch panel, the first A electrode string and the first B electrode string are arranged in parallel in the first electrode layer.

在上述电容式触控板中，其中所述第二甲电极串与所述第二乙电极串于该第二电极层内形成非连接状态，且所述第二甲电极串与所述第二乙电极串同步接受一群组信号检测，其中当所述第二甲电极串和所述第二乙电极串平行排列时，相邻的所述第二甲电极串所分别对应的所述第二乙电极串不相邻。In the above capacitive touch panel, wherein the second A electrode string and the second B electrode string form a non-connected state in the second electrode layer, and the second A electrode string and the second The B electrode strings are synchronously accepted by a group of signal detection, wherein when the second A electrode strings and the second B electrode strings are arranged in parallel, the adjacent second A electrode strings respectively correspond to the second B electrode strings are not adjacent.

在上述电容式触控板中，所述第二甲电极串及所述第二乙电极串于该第一电极层中平行排列。In the above capacitive touch panel, the second A electrode string and the second B electrode string are arranged in parallel in the first electrode layer.

本发明同时提供一种制造电容式触控板的方法，包含下列步骤：A、形成第一电极层，其具有多条在第一方向上分布的第一甲电极串及第一乙电极串。此步骤同时使每一第一甲电极串及第一乙电极串分别具有多个第一方向电极，并使第一甲电极串与第一乙电极串于该第一电极层内形成非连接状态。B、形成第二电极层与第一电极层相重叠，并使第二电极层具有多条沿该第二方向设置的第二甲电极串及第二乙电极串，其中使每一所述第二甲电极串及所述第二乙电极串分别具有多个该第二方向电极。C、对第一甲电极串与第一乙电极串进行同步的群组信号检测，其中当平行设置多条所述第一甲电极串及多条所述第一乙电极串时，使相邻的所述第一甲电极串所分别对应的所述第一乙电极串不相邻。以及形成介电层，使其夹设于该第一电极层和该第二电极层之间。The present invention also provides a method for manufacturing a capacitive touch panel, including the following steps: A. Forming a first electrode layer, which has a plurality of first A-electrode strings and first B-electrode strings distributed in a first direction. In this step, each of the first A electrode string and the first B electrode string has a plurality of electrodes in the first direction, and the first A electrode string and the first B electrode string are in a non-connected state in the first electrode layer. . B. Form the second electrode layer to overlap the first electrode layer, and make the second electrode layer have a plurality of second A electrode strings and second B electrode strings arranged along the second direction, wherein each of the first electrode strings The second A electrode string and the second B electrode string respectively have a plurality of electrodes in the second direction. C. Synchronous group signal detection for the first A electrode string and the first B electrode string, wherein when a plurality of the first A electrode strings and a plurality of the first B electrode strings are arranged in parallel, the adjacent The first B electrode strings corresponding to the first A electrode strings are not adjacent. And forming a dielectric layer to be interposed between the first electrode layer and the second electrode layer.

在上述制造电容式触控板的方法中，该第一电极层形成步骤包含：使所述第一甲电极串及所述第一乙电极串于该第一方向上位于同一行或同一列。In the above method for manufacturing a capacitive touch panel, the step of forming the first electrode layer includes: making the first A-electrode string and the first B-electrode string be located in the same row or column in the first direction.

在上述制造电容式触控板的方法中，该第一电极层形成步骤包含：形成多条相互平行的所述第一甲电极串及相对应的多条所述第一乙电极串；以及使相邻的所述第一甲电极串具有相异数量的所述第一方向电极；其中所述多条第一甲电极串与所述多条第一乙电极串间的间隙呈锯齿分布及斜线分布其中之一。In the above method for manufacturing a capacitive touch panel, the step of forming the first electrode layer includes: forming a plurality of first A electrode strings parallel to each other and a plurality of corresponding first B electrode strings; and using The adjacent first A electrode strings have different numbers of electrodes in the first direction; wherein the gaps between the multiple first A electrode strings and the multiple first B electrode strings are in zigzag distribution and oblique One of the line distributions.

在上述制造电容式触控板的方法中，还包含下列步骤：形成一第一连接垫及一第二连接垫设置于该第一电极层外；由该第一电极层的一第一端延伸一导线耦接所述第一甲电极串与该第一连接垫；以及由该第一电极层的一第二端延伸一导线耦接所述第一乙电极串与该第二连接垫。In the above method of manufacturing a capacitive touch panel, the following steps are further included: forming a first connection pad and a second connection pad disposed outside the first electrode layer; extending from a first end of the first electrode layer A wire is coupled to the first A electrode string and the first connection pad; and a wire extending from a second end of the first electrode layer is coupled to the first B electrode string and the second connection pad.

在上述制造电容式触控板的方法中，还包含下列步骤：形成一第一连接垫设置于该第一电极层外；通过一导线于该第一电极层外耦接所述第一甲电极串与所述第一乙电极串；以及耦接该导线于该第一连接垫。In the above method of manufacturing a capacitive touch panel, the following steps are also included: forming a first connection pad disposed outside the first electrode layer; coupling the first first electrode outside the first electrode layer through a wire string and the first second electrode string; and coupling the wire to the first connection pad.

在上述制造电容式触控板的方法中，该第二电极层形成步骤包含：串联相邻的部分所述多个第二方向电极形成一第二甲电极串；串联另一些相邻的部分所述多个第二方向电极形成一第二乙电极串；其中所述第二甲电极串与所述第二乙电极串于该第二电极层内形成非连接状态；以及对所述第二甲电极串与所述第二乙电极串进行同步的一群组信号检测。In the above-mentioned method for manufacturing a capacitive touch panel, the step of forming the second electrode layer includes: connecting the plurality of electrodes in the second direction adjacent to each other in series to form a second A electrode string; The plurality of electrodes in the second direction form a second B electrode string; wherein the second A electrode string and the second B electrode string form a non-connected state in the second electrode layer; and for the second A electrode string The electrode string and the second second electrode string perform synchronous group signal detection.

在上述制造电容式触控板的方法中，该第二电极层形成步骤包含：形成多条相互平行的所述第二甲电极串及相对应的多条所述第二乙电极串；以及使相邻的所述第二甲电极串具有相异数量的该第二方向电极；其中所述多条第二甲电极串与所述多条第二乙电极串间的间隙呈锯齿分布及斜线分布其中之一。In the above method for manufacturing a capacitive touch panel, the step of forming the second electrode layer includes: forming a plurality of parallel second A electrode strings and a plurality of corresponding second B electrode strings; and using The adjacent second A electrode strings have different numbers of electrodes in the second direction; wherein the gaps between the multiple second A electrode strings and the multiple second B electrode strings are in a zigzag distribution and oblique lines distribute one of them.

在上述制造电容式触控板的方法中，还包含下列步骤：设置一第三连接垫及一第四连接垫于该第二电极层外；由该第二电极层的一第一端延伸一导线耦接所述第二甲电极串与该第三连接垫；以及由该第二电极层的一第二端延伸一导线耦接该第二乙电极串与该第四连接垫。In the above-mentioned method for manufacturing a capacitive touch panel, the following steps are further included: arranging a third connection pad and a fourth connection pad outside the second electrode layer; extending a A wire is coupled to the second A electrode string and the third connection pad; and a wire extending from a second end of the second electrode layer is coupled to the second B electrode string and the fourth connection pad.

在上述制造电容式触控板的方法中，还包含下列步骤：形成一第三连接垫设置于该第二电极层外；通过一导线于该第二电极层外耦接所述第二甲电极串与所述第二乙电极串；以及耦接该导线于该第三连接垫。In the above method of manufacturing a capacitive touch panel, the following steps are also included: forming a third connection pad disposed outside the second electrode layer; coupling the second first electrode outside the second electrode layer through a wire string and the second second electrode string; and coupling the wire to the third connection pad.

在上述制造电容式触控板的方法中，该第一电极层形成步骤包含平行设置所述第一甲电极串及所述第一乙电极串。In the above method of manufacturing a capacitive touch panel, the step of forming the first electrode layer includes arranging the first A-electrode string and the first B-electrode string in parallel.

在上述制造电容式触控板的方法中，该第一电极层形成步骤包含：平行设置多条所述第一甲电极串及多条所述第一乙电极串；以及使相邻所述第一甲电极串所分别对应的所述第一乙电极串不相邻。In the above method for manufacturing a capacitive touch panel, the step of forming the first electrode layer includes: arranging multiple first A electrode strings and multiple first B electrode strings in parallel; The first B electrode strings corresponding to an A electrode string are not adjacent to each other.

在上述制造电容式触控板的方法中，还包含：当相邻的多条所述第一甲电极串同时检测到信号，判定信号由相邻所述多条第一甲电极串所产生。In the above-mentioned method for manufacturing a capacitive touch panel, it further includes: when a plurality of adjacent first A electrode strings detect signals at the same time, the determination signal is generated by the adjacent first A electrode strings.

在上述制造电容式触控板的方法中，该第二电极层设置步骤包含：沿该第二方向设置一第二甲电极串及二乙电极串，使每一所述第二甲电极串及所述第二乙电极串分别具有多个该第二方向电极；其中所述第二甲电极串与所述第二乙电极串于该第二电极层内形成非连接状态；以及对所述第二甲电极串与所述第二乙电极串进行同步的群组信号检测。In the above-mentioned method for manufacturing a capacitive touch panel, the step of arranging the second electrode layer includes: arranging a second A electrode string and a second B electrode string along the second direction, so that each of the second A electrode strings and The second B electrode strings respectively have a plurality of electrodes in the second direction; wherein the second A electrode strings and the second B electrode strings form a non-connected state in the second electrode layer; and for the first The second A electrode string and the second B electrode string perform synchronous group signal detection.

附图说明Description of drawings

图1a为使用传统触控面板的显示装置示意图；Figure 1a is a schematic diagram of a display device using a traditional touch panel;

图1b为传统的电容式触控面板示意图；FIG. 1b is a schematic diagram of a traditional capacitive touch panel;

图2为本发明显示装置的实施例示意图；2 is a schematic diagram of an embodiment of a display device of the present invention;

图3为本发明电容式触控板实施例的组件分解图；FIG. 3 is an exploded view of components of an embodiment of a capacitive touch panel of the present invention;

图4a为电容式触控板的实施例上视图，其中第一甲电极串与第一乙电极串共线；Fig. 4a is a top view of an embodiment of a capacitive touch panel, wherein the first electrode series A and the first electrode series B are collinear;

图4b为电容式触控板的另一实施例上视图，其中第一甲电极串与第一乙电极串于耦接后再与第一连接垫耦接；4b is a top view of another embodiment of a capacitive touch panel, wherein the first electrode series A and the first electrode series B are coupled and then coupled to the first connection pad;

图5为电容式触控板的另一实施例上视图；5 is a top view of another embodiment of a capacitive touch panel;

图6a为电容式触控板的另一实施例上视图，其具有第二甲电极串及第二乙电极串；6a is a top view of another embodiment of a capacitive touch panel, which has a second A electrode string and a second B electrode string;

图6b及图6c为图6a所示电容式触控板的变化实施例上视图；Fig. 6b and Fig. 6c are the upper views of the variation embodiment of the capacitive touch panel shown in Fig. 6a;

图7为电容式触控板的另一实施例上视图，其中第一甲电极串与第一乙电极串相互平行；7 is a top view of another embodiment of a capacitive touch panel, wherein the first electrode series A and the first electrode series B are parallel to each other;

图8a为图7所示实施例的操作示意图；Figure 8a is a schematic diagram of the operation of the embodiment shown in Figure 7;

图8b为图7所示实施例的变化实施例；Fig. 8b is a variant embodiment of the embodiment shown in Fig. 7;

图9为电容式触控板的制造方法实施例流程图；9 is a flowchart of an embodiment of a method for manufacturing a capacitive touch panel;

图10及图11为图9所示制造方法的变化实施例。10 and 11 are variant embodiments of the manufacturing method shown in FIG. 9 .

并且，上述附图中的各附图标记说明如下：And, each reference numeral in the above-mentioned drawings is explained as follows:

100 显示装置100 display devices

110 显示面板110 display panel

111 显示面111 display surface

200 电容式触控板200 capacitive touchpad

250 介电层250 dielectric layer

300 第一电极层300 first electrode layer

301 第一端301 first end

302 第二端302 second end

310、311、312 第一甲电极串310, 311, 312 The first electrode string

320、321、322 第一乙电极串320, 321, 322 The first and second electrode strings

350 第一方向电极350 first direction electrode

370 电极串370 electrode string

410 第一方向410 first direction

420 第二方向420 Second Direction

500 第二电极层500 second electrode layer

510 第二甲电极串510 Second A electrode string

520 第二乙电极串520 Second B electrode string

550 第二方向电极550 Second Direction Electrode

600 连接垫600 connection pad

610 第一连接垫610 first connection pad

620 第二连接垫620 Second connection pad

630 第三连接垫630 Third connection pad

640 第四连接垫640 Fourth connection pad

具体实施方式Detailed ways

本发明提供一种电容式触控板以及使用此电容式触控板的显示装置。本发明的电容式触控板包含外贴式的电容式触控板及整合于显示装置面板的电容式触控板。此外，此处所言的显示装置包含但不限制为使用显示面板的平面显示装置。显示面板优选地包含液晶显示面板、有机发光二极管显示面板或其它显示面板。此外，液晶显示面板包含穿透式液晶显示面板、反射式液晶显示面板、半穿透反射式液晶显示面板及其它形式的液晶显示面板。The invention provides a capacitive touch panel and a display device using the capacitive touch panel. The capacitive touch panel of the present invention includes an externally attached capacitive touch panel and a capacitive touch panel integrated in a display device panel. In addition, the display device mentioned here includes but is not limited to a flat display device using a display panel. The display panel preferably includes a liquid crystal display panel, an organic light emitting diode display panel or other display panels. In addition, the liquid crystal display panel includes a transmissive liquid crystal display panel, a reflective liquid crystal display panel, a transflective liquid crystal display panel and other types of liquid crystal display panels.

在图2所示的实施例中，显示装置100包含显示面板110及电容式触控板200。电容式触控板200优选地设置于显示面板110的显示面111上；显示面板110于显示面111上的影像可经由电容式触控板200向外显示。当使用者点选显示面111上的影像时，电容式触控板200即可检测使用者点选的位置，再将信号传至后端处理器处理。然而在不同实施例中，本发明的电容式触控板200并不限于使用于显示装置100中，其也可与其它需触控操作的装置配合使用。In the embodiment shown in FIG. 2 , thedisplay device 100 includes adisplay panel 110 and acapacitive touch panel 200 . Thecapacitive touch panel 200 is preferably disposed on thedisplay surface 111 of thedisplay panel 110 ; the image of thedisplay panel 110 on thedisplay surface 111 can be displayed outside through thecapacitive touch panel 200 . When the user clicks the image on thedisplay surface 111, thecapacitive touch panel 200 can detect the position clicked by the user, and then transmit the signal to the back-end processor for processing. However, in different embodiments, thecapacitive touch panel 200 of the present invention is not limited to be used in thedisplay device 100 , and it can also be used in conjunction with other devices requiring touch operation.

如图3所示，电容式触控板200包含第一电极层300、第二电极层500及介电层250。第一电极层300与第二电极层500相重叠；介电层250则夹设于第一电极层300与第二电极层500间，以提供必要的信号隔离。第一电极层300包含沿第一方向410分布的第一甲电极串310及第一乙电极串320。每一第一甲电极串310及第一乙电极串320分别包含有多个第一方向电极350。如图3所示，第二电极层500包含有多个沿第二方向420排列及串联的第二方向电极550。在此实施例中，第一方向410优选地与第二方向420正交；然而在不同实施例中，第一方向410也可与第二方向420相交于非直角的其它角度。通过感应第一方向电极350与第二方向电极550上产生的信号变化，即可决定使用者于电容式触控板200上点选的位置。此外，在不同实施例中，当仅需要检测单一维度上的触控位置时，也可仅设置第一电极层300而不设置第二电极层500。As shown in FIG. 3 , thecapacitive touch panel 200 includes afirst electrode layer 300 , a second electrode layer 500 and a dielectric layer 250 . Thefirst electrode layer 300 overlaps with the second electrode layer 500 ; the dielectric layer 250 is sandwiched between thefirst electrode layer 300 and the second electrode layer 500 to provide necessary signal isolation. Thefirst electrode layer 300 includes firstA-electrode strings 310 and first B-electrode strings 320 distributed along afirst direction 410 . Each of the firstelectrode series A 310 and the firstelectrode series B 320 respectively includes a plurality offirst direction electrodes 350 . As shown in FIG. 3 , the second electrode layer 500 includes a plurality ofsecond direction electrodes 550 arranged and connected in series along thesecond direction 420 . In this embodiment, thefirst direction 410 is preferably perpendicular to thesecond direction 420 ; however, in different embodiments, thefirst direction 410 may also intersect thesecond direction 420 at other angles than right angles. By sensing the signal changes generated on thefirst direction electrode 350 and thesecond direction electrode 550 , the position clicked by the user on thecapacitive touch panel 200 can be determined. In addition, in different embodiments, when it is only necessary to detect the touch position in a single dimension, only thefirst electrode layer 300 may be provided without the second electrode layer 500 .

由图4a所示上视图看到的，第一甲电极串310与第一乙电极串320沿同一方向分布，并与第二方向电极550形成的电极串交错设置以形成格状的结构；换言之，第一甲电极串310与第一乙电极串320隔着介电层250跨越第二方向电极550形成的电极串。如图4a所示，除分布于边缘的电极外，每一第一方向电极350均位于相邻第二方向电极550形成的电极串间；每一第二方向电极550则位于相邻第一甲电极串310与/或第一乙电极串320间。通过此一设置，多个第一方向电极350与多个第二方向电极550以近似蜂巢的形式分布于电容式触控板200上，且每一第一方向电极350夹设于以2x2数组形成分布的4个第二方向电极550之间；每一第二方向电极550亦夹设于以2x2数组形成分布的4个第一方向电极350之间。然而于不同实施例中，多个第一方向电极350与多个第二方向电极550也可以数组或其它规则与不规则的方式排列。From the top view shown in Figure 4a, the firstA electrode string 310 and the firstB electrode string 320 are distributed along the same direction, and are arranged alternately with the electrode string formed by thesecond direction electrodes 550 to form a lattice structure; in other words , the electrode string formed by the firstA electrode string 310 and the firstB electrode string 320 straddling thesecond direction electrode 550 through the dielectric layer 250 . As shown in Figure 4a, except for the electrodes distributed on the edge, eachfirst direction electrode 350 is located between the electrode strings formed by adjacentsecond direction electrodes 550; eachsecond direction electrode 550 is located between adjacentfirst direction electrodes 550 Between theelectrode string 310 and/or the firstsecond electrode string 320 . Through this arrangement, a plurality offirst direction electrodes 350 and a plurality ofsecond direction electrodes 550 are distributed on thecapacitive touch panel 200 in the form of a honeycomb, and eachfirst direction electrode 350 is interposed in a 2×2 array. Between the distributed foursecond direction electrodes 550 ; eachsecond direction electrode 550 is also sandwiched between the fourfirst direction electrodes 350 distributed in a 2×2 array. However, in different embodiments, the plurality offirst direction electrodes 350 and the plurality ofsecond direction electrodes 550 may also be arranged in an array or in other regular and irregular manners.

如图4a所示，第一甲电极串310与第一乙电极串320在第一电极层300内形成非连接状态；也即第一甲电极串310与第一乙电极串320在第一电极层300内不具信号连接，彼此的信号并无法在第一电极层300产生共通。然而第一甲电极串310与第一乙电极串320同步接受系统的群组信号检测；换言之，在进行信号检测时，第一甲电极串310与第一乙电极串320被视为同一组，而同时加以检测。因此当第一甲电极串310或第一乙电极串320检测到信号变化时，系统会判定为同一状况而不加以区分。As shown in Figure 4a, the firstA electrode string 310 and the firstB electrode string 320 form a non-connected state in thefirst electrode layer 300; that is, the firstA electrode string 310 and the firstB electrode string 320 are in the first electrode There is no signal connection in thelayer 300 , and the signals of each other cannot be shared in thefirst electrode layer 300 . However, the firstA electrode string 310 and the firstB electrode string 320 receive the group signal detection of the system synchronously; in other words, when performing signal detection, the firstA electrode string 310 and the firstB electrode string 320 are regarded as the same group, while being detected. Therefore, when the firstA-electrode string 310 or the first B-electrode string 320 detects a signal change, the system will determine that it is the same situation without making a distinction.

在图4a所示的实施例中，第一甲电极串310与第一乙电极串320位于第一方向410上的同一行列。换言之，第一甲电极串310与第一乙电极串320可视为将沿第一方向410分布的电极串切开后形成的两部分。在此实施例中，由于第一甲电极串310与第一乙电极串320在第一方向410上共线，因此第一甲电极串310与第一乙电极串320在正交的第二方向420维度上代表相同的坐标。当第一甲电极串310与第一乙电极串320上检测到信号时，均表示使用者点选位置位于第一甲电极串310与第一乙电极串320所共线的行列上。由于第一甲电极串310与第一乙电极串320的长度及其上设置的第一方向电极350数量均少于原本未切开前的电极串，因此第一甲电极串310与第一乙电极串320上产生的电阻及耦合电容均少于未切开的电极串，有利于减少系统整体的负荷。In the embodiment shown in FIG. 4 a , the firstelectrode series A 310 and the firstelectrode series B 320 are located in the same row and column in thefirst direction 410 . In other words, the firstelectrode series A 310 and the firstelectrode series B 320 can be regarded as two parts formed by cutting the electrode series distributed along thefirst direction 410 . In this embodiment, since the firstA electrode string 310 and the firstB electrode string 320 are collinear in thefirst direction 410, the firstA electrode string 310 and the firstB electrode string 320 are in the second orthogonal direction. The 420 dimension represents the same coordinates. When signals are detected on the firstelectrode series A 310 and the firstelectrode series B 320 , it means that the user clicked position is located on the collinear row and column of the firstelectrode series A 310 and the firstelectrode series B 320 . Because the length of the firstA electrode string 310 and the firstB electrode string 320 and the number offirst direction electrodes 350 arranged on it are less than the original electrode string before the incision, the firstA electrode string 310 and the first B electrode string The resistance and coupling capacitance generated on theelectrode string 320 are both less than those of the uncut electrode string, which is beneficial to reduce the overall load of the system.

如图4a所示，第一甲电极串310与第一乙电极串320分别由第一电极层300的第一端301与第二端302延伸导线与后端系统连接。在此实施例中，电容式触控板200包含第一连接垫610与第二连接垫620分别设置于第一电极层300外。第一甲电极串310与第一乙电极串320则分别耦接至第一连接垫610与第二连接垫620。系统端可分别经由第一连接垫610与第二连接垫620同时检测第一甲电极串310与第一乙电极串320上的信号，以决定使用者点选位置在第二方向420上的坐标。As shown in FIG. 4 a , the firstA electrode string 310 and the firstB electrode string 320 are respectively connected to the back-end system by extension wires from thefirst end 301 and thesecond end 302 of thefirst electrode layer 300 . In this embodiment, thecapacitive touch panel 200 includes afirst connection pad 610 and asecond connection pad 620 respectively disposed outside thefirst electrode layer 300 . The firstA electrode string 310 and the firstB electrode string 320 are respectively coupled to thefirst connection pad 610 and thesecond connection pad 620 . The system end can simultaneously detect the signals on the firstA electrode series 310 and the firstB electrode series 320 via thefirst connection pad 610 and thesecond connection pad 620 respectively, so as to determine the coordinates of the user's clicked position in thesecond direction 420 .

在图4b所示的实施例中，则仅设置第一连接垫610于第一电极层300之外。第一甲电极串310与第一乙电极串320在第一电极层外经由导线先行耦接，其后再与第一连接垫610耦接。此时第一甲电极串310与第一乙电极串320形成并联的状态，系统端经由单一的第一连接垫610同时检测第一甲电极串310与第一乙电极串320上的信号，以决定使用者点选位置在第二方向420上的坐标。In the embodiment shown in FIG. 4 b , only thefirst connection pad 610 is disposed outside thefirst electrode layer 300 . The firstA electrode series 310 and the firstB electrode series 320 are firstly coupled through wires outside the first electrode layer, and then coupled to thefirst connection pad 610 . At this time, the firstA electrode string 310 and the firstB electrode string 320 form a parallel state, and the system side detects the signals on the firstA electrode string 310 and the firstB electrode string 320 through a singlefirst connection pad 610 at the same time, so as to The coordinates of the user's clicked position in thesecond direction 420 are determined.

在图4a及图4b所示的实施例中，第一电极层300中包含有多条相互平行的第一甲电极串310。第一电极层300并同时包含有多条第一乙电极串320与第一甲电极串310对应共线。每一第一甲电极串310均具有相同的长度，其上串联有相同数量的第一方向电极350；每一第一乙电极串320均具有相同的长度，其上也串联有相同数量的第一方向电极350。然而在图5所示的实施例中，部分平行且相邻的第一甲电极串310具有不同的长度，其上串联的第一方向电极350数量也不同；同样地，对应的第一乙电极串320具有与第一甲电极串310互补的长度及第一方向电极350数量，因此也与相邻的第一乙电极串320的长度及电极数量不同。如图5所示，在此实施例中，多条第一甲电极串310与对应第一乙电极串320间的间隙呈现锯齿分布，而非如图4a及图4b所示的直线分布。通过此一设计，可均匀化因第一甲电极串310与对应第一乙电极串320间的间隙造成的亮度改变，使第一甲电极串310与对应第一乙电极串320间的间隙位置不易被发现。In the embodiment shown in FIG. 4 a and FIG. 4 b , thefirst electrode layer 300 includes a plurality of firstA-electrode strings 310 parallel to each other. Thefirst electrode layer 300 also includes a plurality of first B electrode strings 320 and the first A electrode strings 310 correspondingly collinear. Each firstA electrode string 310 has the same length, and the same number offirst direction electrodes 350 are connected in series; each firstB electrode string 320 has the same length, and the same number offirst direction electrodes 350 are connected in series. Onedirection electrode 350 . However, in the embodiment shown in FIG. 5 , the partially parallel and adjacent first A electrode strings 310 have different lengths, and the number offirst direction electrodes 350 connected in series thereon is also different; similarly, the corresponding first B electrodes Thestring 320 has a length and the number ofelectrodes 350 in the first direction that are complementary to the firstA electrode string 310 , and therefore is also different from the length and the number of electrodes of the adjacent firstB electrode string 320 . As shown in FIG. 5 , in this embodiment, the gaps between the plurality of first A electrode strings 310 and the corresponding first B electrode strings 320 present a zigzag distribution instead of a straight line distribution as shown in FIG. 4 a and FIG. 4 b . Through this design, the brightness change caused by the gap between the firstA electrode string 310 and the corresponding firstB electrode string 320 can be uniformed, so that the gap position between the firstA electrode string 310 and the corresponding firstB electrode string 320 Not easy to detect.

在图6a所示的实施例中，除第一电极层300的第一甲电极串310与第一乙电极串320外，相邻的部分第二方向电极550也可串联形成第二甲电极串510；而另一些相邻的部分第二方向电极550则串联形成第二乙电极串520。第二甲电极串510与第二乙电极串520在第二电极层500内形成非连接状态；也即第二甲电极串510与第二乙电极串520在第二电极层500内不具信号连接，彼此的信号并无法在第二电极层500产生共通。然而第二甲电极串510与第二乙电极串520同步接受系统的群组信号检测；换言之，在进行信号检测时，第二甲电极串510与第二乙电极串520被视为同一组，而同时加以检测。因此当第二甲电极串510或第二乙电极串520检测到信号变化时，系统会判定为同一状况而不加以区分。In the embodiment shown in FIG. 6a, in addition to the firstA-electrode string 310 and the first B-electrode string 320 of thefirst electrode layer 300, the adjacent part of thesecond direction electrodes 550 can also be connected in series to form the second A-electrode string. 510 ; and some adjacent second-direction electrodes 550 are connected in series to form a second B-electrode string 520 . The secondA electrode string 510 and the secondB electrode string 520 form a non-connected state in the second electrode layer 500; that is, the secondA electrode string 510 and the secondB electrode string 520 have no signal connection in the second electrode layer 500 , the signals of each other cannot be shared in the second electrode layer 500 . However, the secondA electrode string 510 and the secondB electrode string 520 receive the group signal detection of the system synchronously; in other words, when performing signal detection, the secondA electrode string 510 and the secondB electrode string 520 are regarded as the same group, while being detected. Therefore, when the secondA electrode string 510 or the secondB electrode string 520 detects a signal change, the system will determine that it is the same situation without making a distinction.

在图6a所示的实施例中，第二甲电极串510与第二乙电极串520位于第二方向420上的同一行列。换言之，第二甲电极串510与第二乙电极串520可视为将沿第二方向420分布的电极串切开后形成的两部分。在此实施例中，由于第二甲电极串510与第二乙电极串520在第二方向420上共线，因此第二甲电极串510与第二乙电极串520在正交的第一方向410维度上代表相同的坐标值。当第二甲电极串510与第二乙电极串520上检测到信号时，均表示使用者点选位置位于第二甲电极串510与第二乙电极串520所共线的行列上。由于第二甲电极串510与第二乙电极串520的长度及其上设置的第二方向电极550数量均少于原本未切开前的电极串，因此第二甲电极串510与第二乙电极串520上产生的电阻及耦合电容均少于未切开的电极串，有利于减少系统整体的负荷。In the embodiment shown in FIG. 6 a , the secondA electrode string 510 and the secondB electrode string 520 are located in the same row and column in thesecond direction 420 . In other words, the secondA electrode string 510 and the secondB electrode string 520 can be regarded as two parts formed by cutting the electrode string distributed along thesecond direction 420 . In this embodiment, since the secondA electrode string 510 and the secondB electrode string 520 are collinear in thesecond direction 420, the secondA electrode string 510 and the secondB electrode string 520 are in the first orthogonal direction. The 410 dimension represents the same coordinate value. When signals are detected on the secondA electrode string 510 and the secondB electrode string 520 , it means that the user clicked position is located on the collinear row and column of the secondA electrode string 510 and the secondB electrode string 520 . Because the length of the secondA electrode string 510 and the secondB electrode string 520 and the number ofsecond direction electrodes 550 arranged on it are less than the original electrode string before the incision, the secondA electrode string 510 and the second B electrode string The resistance and coupling capacitance generated on theelectrode string 520 are both less than those of the uncut electrode string, which is beneficial to reduce the overall load of the system.

如图6a所示，第二甲电极串510与第二乙电极串520分别由第二电极层500的上下两端延伸导线与后端系统连接。在此实施例中，电容式触控板200包含第三连接垫630与第四连接垫640分别设置于第二电极层500外。第二甲电极串510与第二乙电极串520则分别耦接至第三连接垫630与第四连接垫640。系统端可分别经由第三连接垫630与第四连接垫640同时检测第二甲电极串510与第二乙电极串520上的信号，以决定使用者点选位置在第一方向410上的坐标。As shown in FIG. 6 a , the secondA electrode string 510 and the secondB electrode string 520 are respectively connected to the back-end system by extending wires from the upper and lower ends of the second electrode layer 500 . In this embodiment, thecapacitive touch panel 200 includes athird connection pad 630 and afourth connection pad 640 respectively disposed outside the second electrode layer 500 . The secondA electrode string 510 and the secondB electrode string 520 are respectively coupled to thethird connection pad 630 and thefourth connection pad 640 . The system end can simultaneously detect the signals on the secondA electrode series 510 and the secondB electrode series 520 via thethird connection pad 630 and thefourth connection pad 640 respectively, so as to determine the coordinates of the user's clicked position in thefirst direction 410 .

在图6b所示的实施例中，则仅设置第三连接垫630于第二电极层500之外。第二甲电极串510与第二乙电极串520在第一电极层外经由导线先行耦接，其后再与第三连接垫630耦接。此时第二甲电极串510与第二乙电极串520形成并联的状态，系统端经由单一的第三连接垫630同时检测第二甲电极串510与第二乙电极串520上的信号，以决定使用者点选位置在第一方向410上的坐标。In the embodiment shown in FIG. 6 b , only thethird connection pad 630 is disposed outside the second electrode layer 500 . The secondA electrode string 510 and the secondB electrode string 520 are firstly coupled through wires outside the first electrode layer, and then coupled to thethird connection pad 630 . At this time, the secondA electrode string 510 and the secondB electrode string 520 form a parallel state, and the system side detects the signals on the secondA electrode string 510 and the secondB electrode string 520 through a singlethird connection pad 630 at the same time, so as to The coordinates of the user's clicked position in thefirst direction 410 are determined.

在图6a及图6b所示的实施例中，第二电极层500中包含有多条相互平行的第二甲电极串510。第二电极层500并同时包含有多条第二乙电极串520与第二甲电极串510对应共线。每一第二甲电极串510均具有相同的长度，其上串联有相同数量的第二方向电极550；每一第二乙电极串520均具有相同的长度，其上还串联有相同数量的第二方向电极550。然而在图6c所示的实施例中，部分平行且相邻的第二甲电极串510具有不同的长度，其上串联的第二方向电极550数量也不同；同样地，对应的第二乙电极串520具有与第二甲电极串510互补的长度及第二方向电极550数量，因此也与相邻的第二乙电极串520的长度及电极数量不同。如图6c所示，在此实施例中，多条第二甲电极串510与对应第二乙电极串520间的间隙呈现锯齿分布、斜线分布或梯形分布，而非如图6a及图6b所示的直线分布。通过此一设计，可均匀化因第二甲电极串510与对应第二乙电极串520间的间隙造成的亮度改变，使第二甲电极串510与对应第二乙电极串520间的间隙位置不易被发现。In the embodiment shown in FIG. 6 a and FIG. 6 b , the second electrode layer 500 includes a plurality of second A electrode strings 510 parallel to each other. The second electrode layer 500 also includes a plurality of second B electrode strings 520 and the second A electrode strings 510 correspondingly collinear. Each secondA electrode string 510 has the same length, and the same number ofsecond direction electrodes 550 are connected in series; each secondB electrode string 520 has the same length, and the same number ofsecond direction electrodes 550 are connected in series. Twodirection electrodes 550 . However, in the embodiment shown in FIG. 6c, the partly parallel and adjacent second A electrode strings 510 have different lengths, and the number ofsecond direction electrodes 550 connected in series thereon is also different; similarly, the corresponding second B electrodes Thestring 520 has a length complementary to the secondA electrode string 510 and the number ofelectrodes 550 in the second direction, and thus is also different from the adjacent secondB electrode string 520 in length and electrode number. As shown in FIG. 6c, in this embodiment, the gaps between the multiple second A electrode strings 510 and the corresponding second B electrode strings 520 present a zigzag distribution, a diagonal distribution or a trapezoidal distribution, rather than as shown in FIG. 6a and FIG. 6b The straight line distribution shown. Through this design, the brightness change caused by the gap between the secondA electrode string 510 and the corresponding secondB electrode string 520 can be uniformed, so that the gap position between the secondA electrode string 510 and the corresponding secondB electrode string 520 Not easy to detect.

在图7所示的实施例中，在第一电极层300中，第一甲电极串310与第一乙电极串320呈平行排列，而非共线设置。此时第一甲电极串310与第一乙电极串320在正交的第二方向420维度上代表的坐标值不同。虽然第一甲电极串310与第一乙电极串320在第一电极层300内不具信号连接，但第一甲电极串310与第一乙电极串320同步接受系统的群组信号检测；换言之，在进行信号检测时，第一甲电极串310与第一乙电极串320被视为同一组，而同时加以检测。此种设计于同一时点检测不同的电极串，因此可节省整体的检测时间。In the embodiment shown in FIG. 7 , in thefirst electrode layer 300 , the firstA-electrode string 310 and the first B-electrode string 320 are arranged in parallel instead of collinearly. At this moment, the coordinate values represented by the firstelectrode series A 310 and the firstelectrode series B 320 in the secondorthogonal direction 420 are different. Although the firstA electrode string 310 and the firstB electrode string 320 do not have a signal connection in thefirst electrode layer 300, the firstA electrode string 310 and the firstB electrode string 320 receive the group signal detection of the system synchronously; in other words, When performing signal detection, the firstA-electrode string 310 and the first B-electrode string 320 are regarded as the same group, and are detected at the same time. This design detects different electrode strings at the same time point, thus saving the overall detection time.

如图7所示，在优选实施例中，平行排列的第一甲电极串310与第一乙电极串320先通过导线于第一电极层300外耦接，再与设置于第一电极层300外的连接垫600耦接，以与后端系统连接。此外，在此实施例中包含有多条第一甲电极串310及多条第一乙电极串320，其中相邻的第一甲电极串310所分别连接的第一乙电极串320不相邻。换言之，若将相耦接的第一甲电极串310及第一乙电极串320视为同一组，则一组电极串与其它任一组电极串间最多仅会有一条电极串相邻；此条相邻的电极串可以为第一甲电极串310或第一乙电极串320。As shown in FIG. 7, in a preferred embodiment, the firstA electrode string 310 and the firstB electrode string 320 arranged in parallel are first coupled outside thefirst electrode layer 300 through a wire, and then connected to thefirst electrode layer 300. Theexternal connection pads 600 are coupled to connect with the backend system. In addition, in this embodiment, there are multiple first A electrode strings 310 and multiple first B electrode strings 320, wherein the first B electrode strings 320 connected to adjacent first A electrode strings 310 are not adjacent to each other. . In other words, if the coupled first Aelectrode string 310 and the firstB electrode string 320 are regarded as the same group, there will be at most one electrode string adjacent between one electrode string and any other group of electrode strings; The adjacent electrode strings can be the firstA electrode string 310 or the firstB electrode string 320 .

当使用者点选触控板200时，通常会同时触及相邻的二电极串。由于第一甲电极串310与第一乙电极串320耦接，因此系统于检测到信号时，并无法判断其在第二方向420上的坐标应为第一甲电极串310所代表的值或第一乙电极串320所代表的值。此时若相邻的第一甲电极串310同时检测到信号，由于此二条第一甲电极串310所对应耦接的第一乙电极串320并不相邻，因此系统即可判定使用者点选的位置应落于第一甲电极串310所通过的位置。When the user clicks on thetouch panel 200 , the adjacent two electrode strings are usually touched at the same time. Since the firstA electrode string 310 is coupled to the firstB electrode string 320, when the system detects the signal, it cannot judge that its coordinate in thesecond direction 420 should be the value represented by the firstA electrode string 310 or The value represented by the firstB electrode string 320 . At this time, if the adjacent first A electrode strings 310 detect signals at the same time, since the first B electrode strings 320 corresponding to the two first A electrode strings 310 are not adjacent to each other, the system can determine the user point The selected position should fall on the position where the firstA electrode string 310 passes.

在图8a所示的实施例中，当使用者点选第一甲电极串311时，系统会检测到第一甲电极串311与第一乙电极串321的信号。由于使用者通常会同时触及与第一甲电极串311相邻的另一第一甲电极串312，因此系统会同时接收到第一甲电极串312与第一乙电极串322的信号。由于第一甲电极串311与第一甲电极串312相邻，因此系统即可判定使用者点选的位置在此处。此外，在图8b所示的实施例中，也可将三条电极串370耦接并设为一组。每组电极串与其它任一组电极串间最多仅会有一条电极串370相邻，以判断使用者所点触的正确位置。In the embodiment shown in FIG. 8 a , when the user clicks on the first A electrode string 311 , the system will detect the signals of the first A electrode string 311 and the first B electrode string 321 . Since the user usually touches another first A electrode string 312 adjacent to the first A electrode string 311 at the same time, the system will receive signals from the first A electrode string 312 and the first B electrode string 322 at the same time. Since the first A-electrode string 311 is adjacent to the first A-electrode string 312 , the system can determine that the position clicked by the user is here. In addition, in the embodiment shown in FIG. 8 b , threeelectrode strings 370 can also be coupled and set as a group. There is at most oneelectrode string 370 adjacent to each electrode string and any other set of electrode strings, so as to determine the correct position touched by the user.

必需强调的是，图7、图8a及图8b所示的实施例应用于第一电极层300中；然而在其它实施例中，同样使电极串平行的设计也可同时应用于第一电极层300的第一方向电极350与第二电极层500的第二方向电极550上。此外，也可在图7所示的实施例中，配合将第二电极层500中的第二方向电极550设计为图6a至图6c所示的共线电极串形式。It must be emphasized that the embodiments shown in FIG. 7, FIG. 8a and FIG. 8b are applied to thefirst electrode layer 300; however, in other embodiments, the same parallel design of the electrode strings can also be applied to thefirst electrode layer 300 on thefirst direction electrode 350 and thesecond direction electrode 550 on the second electrode layer 500 . In addition, in the embodiment shown in FIG. 7 , thesecond direction electrode 550 in the second electrode layer 500 may also be designed in the form of a collinear electrode string as shown in FIGS. 6 a to 6 c.

本发明同时提供一种制造电容式触控板的方法。如图9所示，步骤910包含形成第一电极层，其具有在第一方向上分布的第一甲电极串及第一乙电极串。此步骤同时使每一第一甲电极串及第一乙电极串分别具有多个第一方向电极，并使第一甲电极串与第一乙电极串于该第一电极层内形成非连接状态。形成第一电极层的方式包含各式半导体工艺，例如蚀刻、沉积、镀膜或其它工艺。The invention also provides a method for manufacturing the capacitive touch panel. As shown in FIG. 9 ,step 910 includes forming a first electrode layer having first A-electrode strings and first B-electrode strings distributed in a first direction. In this step, each of the first A electrode string and the first B electrode string has a plurality of electrodes in the first direction, and the first A electrode string and the first B electrode string are in a non-connected state in the first electrode layer. . The methods of forming the first electrode layer include various semiconductor processes, such as etching, deposition, coating or other processes.

步骤930包含形成第二电极层与第一电极层相重叠，并使第二电极层具有多个沿第二方向排列及串联的第二方向电极。第二方向优选地与第一方向正交，然而此二方向也可以其它夹角交错。形成第二电极层的方式包含各式半导体工艺，例如蚀刻、沉积、镀膜或其它工艺；此外，此步骤优选地于第一电极层、第二电极层或两者之间形成介电层，以隔绝第一方向电极与第二方向电极。Step 930 includes forming a second electrode layer overlapping with the first electrode layer, and making the second electrode layer have a plurality of second direction electrodes arranged and connected in series along the second direction. The second direction is preferably orthogonal to the first direction, however, the two directions can also intersect at other angles. The method of forming the second electrode layer includes various semiconductor processes, such as etching, deposition, coating or other processes; in addition, this step preferably forms a dielectric layer on the first electrode layer, the second electrode layer or between the two, so as to The electrodes in the first direction and the electrodes in the second direction are isolated.

步骤950包含对第一甲电极串与第一乙电极串进行同步的群组信号检测。此一检测步骤可由系统端经由不同的第一连接垫与第二连接垫分别与第一甲电极串与第一乙电极串耦接执行；或可将第一甲电极串与第一乙电极串先行耦接，再由系统端经由单一连接垫对第一甲电极串与第一乙电极串同时进行检测。Step 950 includes synchronous group signal detection for the first A-electrode string and the first B-electrode string. This detection step can be performed by the system side via different first connection pads and second connection pads respectively coupled to the first A electrode string and the first B electrode string; or the first A electrode string and the first B electrode string can be connected. Coupling is performed first, and then the system side detects the first A electrode string and the first B electrode string simultaneously through a single connection pad.

在图10所示的实施例中，步骤910可包含步骤1010、步骤1030及步骤1050。步骤1010包含形成多条相互平行的第一甲电极串及相对应的多条第一乙电极串。步骤1030包含使第一甲电极串及对应的第一乙电极串于第一方向上位于同一行列。步骤1050包含使相邻的第一甲电极串具有相异的长度或相异数量的第一方向电极。因此多条第一甲电极串与多条第一乙电极串间的间隙可呈锯齿分布、斜线分布或梯形分布。通过此一设计，可均匀化因第一甲电极串与对应第一乙电极串间的间隙造成的亮度改变，使第一甲电极串与对应第一乙电极串间的间隙位置不易被发现。此外，由于第一甲电极串与第一乙电极串的长度及其上设置的第一方向电极数量均少于原本未切开前的电极串，因此第一甲电极串与第一乙电极串上产生的电阻及耦合电容均少于未切开的电极串，有利于减少系统整体的负荷。In the embodiment shown in FIG. 10 ,step 910 may includestep 1010 ,step 1030 andstep 1050 .Step 1010 includes forming a plurality of parallel first A electrode strings and a plurality of corresponding first B electrode strings.Step 1030 includes making the first A-electrode string and the corresponding first B-electrode string be located in the same row and column in the first direction.Step 1050 includes making adjacent first A electrode strings have different lengths or different numbers of electrodes in the first direction. Therefore, the gaps between the multiple first A electrode strings and the multiple first B electrode strings can be distributed in a zigzag, oblique or trapezoidal manner. Through this design, the brightness change caused by the gap between the first A electrode string and the corresponding first B electrode string can be evened out, so that the gap position between the first A electrode string and the corresponding first B electrode string is not easy to be found. In addition, since the lengths of the first A electrode string and the first B electrode string and the number of electrodes in the first direction arranged on them are less than the original electrode string before cutting, the first A electrode string and the first B electrode string The resistance and coupling capacitance generated on the electrode string are less than those of the uncut electrode string, which is beneficial to reduce the overall load of the system.

在图11所示的实施例中，步骤910可包含步骤1110及步骤1130。步骤1110包含平行设置多条第一甲电极串及多条第一乙电极串；此时第一甲电极串并不与第一乙电极串共线。步骤1130包含使相邻二第一甲电极串分别对应耦接于不相邻的第一乙电极串。In the embodiment shown in FIG. 11 ,step 910 may includestep 1110 andstep 1130 .Step 1110 includes arranging multiple first A-electrode strings and multiple first B-electrode strings in parallel; at this time, the first A-electrode strings are not collinear with the first B-electrode strings.Step 1130 includes coupling two adjacent first A electrode strings to the non-adjacent first B electrode strings respectively.

当使用者点选触控板时，通常会同时触及相邻的二电极串。由于第一甲电极串与第一乙电极串耦接，因此系统于检测到信号时，并无法判断其在第二方向上的坐标应为第一甲电极串所代表的值或第一乙电极串所代表的值。在步骤1150中，若同时于相邻的第一甲电极串检测到信号，由于此二条第一甲电极串所对应耦接的第一乙电极串并不相邻，因此系统即可于步骤1170中判定检测到的信号产生位置为相邻的第一甲电极串；换言之，使用者点选的位置应落于相邻第一甲电极串所通过的位置。When the user clicks on the touch panel, the adjacent two electrode strings are usually touched at the same time. Since the first electrode series A is coupled to the first electrode series B, when the system detects the signal, it cannot determine whether its coordinates in the second direction should be the value represented by the first electrode series A or the first electrode B. The value represented by the string. Instep 1150, if a signal is detected in the adjacent first A electrode strings at the same time, since the first B electrode strings corresponding to the two first A electrode strings are not adjacent to each other, the system can proceed instep 1170 It is determined that the detected signal generation position is the adjacent first A electrode string; in other words, the position clicked by the user should fall on the position passed by the adjacent first A electrode string.

必需强调的是，第二电极层中的第二方向电极也可以上述图8、图9及图10的方式制造。通过第一方向电极及第二方向电极所应用制造方式及结构的调整，可增加设计上的多重选择性，并满足多种不同产品的需求。It must be emphasized that the electrodes in the second direction in the second electrode layer can also be manufactured in the manner shown in FIG. 8 , FIG. 9 and FIG. 10 . By adjusting the manufacturing method and structure of the electrodes in the first direction and the electrodes in the second direction, multiple options in design can be increased and requirements of various products can be met.

本发明已由上述相关实施例加以描述，然而上述实施例仅为实施本发明的范例。必需指出的是，已揭示的实施例并未限制本发明的范围。相反地，包含于权利要求书的精神及范围的修改及均等设置均包含于本发明的范围内。The present invention has been described by the above-mentioned related embodiments, however, the above-mentioned embodiments are only examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, modifications and equivalent arrangements included in the spirit and scope of the claims are included in the scope of the present invention.

Claims (26)

1. capacitive touch control plate comprises:

One first electrode layer has many first first electrode arrays that distribute and the first second electrode array on a first direction, each described first first electrode array and the described first second electrode array have a plurality of first direction electrodes respectively; Wherein said first first electrode array and the described first second electrode array form notconnect state in this first electrode layer, and described first first electrode array and the described first second electrode array are accepted group's input synchronously, wherein when the described first first electrode array and the described first second electrode array were arranged in parallel, it is non-conterminous that the adjacent described first first electrode array is distinguished the corresponding described first second electrode array;

One the second electrode lay with this first electrode layer overlaid, and has many second first electrode arrays that distribute and the second second electrode array on second direction; Wherein, each described second first electrode array and the described second second electrode array have a plurality of described second direction electrodes respectively, and this second direction and this first direction are staggered; And

Dielectric layer is located between this first electrode layer and this second electrode lay.

2. capacitive touch control plate as claimed in claim 1, wherein said first first electrode array and the described first second electrode array are positioned at same row or same row on this first direction.

3. capacitive touch control plate as claimed in claim 2, wherein this first electrode layer includes many described first first electrode arrays that are parallel to each other and corresponding many described first second electrode arrays, the adjacent described first first electrode array has the described first direction electrode of different quantity, makes gap between described many first first electrode arrays and described many first second electrode arrays be that sawtooth distributes and oblique line distributes one of them.

4. capacitive touch control plate as claimed in claim 2, wherein this first electrode layer includes many described first first electrode arrays that are parallel to each other and corresponding many described first second electrode arrays, and the adjacent described first first electrode array has this first direction electrode of equal number.

5. capacitive touch control plate as claimed in claim 2 also comprises one first connection gasket and one second connection gasket and is arranged at outside this first electrode layer, and the wherein said first first electrode array extends a lead by one first end of this first electrode layer and this first connection gasket couples; The described first second electrode array extends a lead by one second end of this first electrode layer and this second connection gasket couples.

6. capacitive touch control plate as claimed in claim 2, also comprising one first connection gasket is arranged at outside this first electrode layer, the wherein said first first electrode array couples with the described first second electrode array outside this first electrode layer by a lead, and this lead also is coupled to this first connection gasket.

7. capacitive touch control plate as claimed in claim 2, the described a plurality of second direction electrode series connection of wherein adjacent part form one second first electrode array, many the described a plurality of second direction electrodes of adjacent part are then connected and are formed one second second electrode array in addition, wherein said second first electrode array and the described second second electrode array form notconnect state in this second electrode lay, and described second first electrode array and the synchronous group's input of accepting of the described second second electrode array.

8. capacitive touch control plate as claimed in claim 7, wherein this second electrode lay includes many described second first electrode arrays that are parallel to each other and corresponding many described second second electrode arrays, the adjacent described second first electrode array has this second direction electrode of different quantity, makes gap between described many second first electrode arrays and described many second second electrode arrays be that sawtooth distributes and oblique line distributes one of them.

9. capacitive touch control plate as claimed in claim 7, wherein this second electrode lay includes many described second first electrode arrays that are parallel to each other and corresponding many described second second electrode arrays, and the adjacent described second first electrode array has the described second direction electrode of equal number.

10. capacitive touch control plate as claimed in claim 7, also comprise one the 3rd connection gasket and one the 4th connection gasket is arranged at outside this second electrode lay, the wherein said second first electrode array extends a lead by one first end of this second electrode lay and the 3rd connection gasket couples; The described second second electrode array extends a lead by one second end of this second electrode lay and the 4th connection gasket couples.

11. capacitive touch control plate as claimed in claim 7, also comprising one the 3rd connection gasket is arranged at outside this second electrode lay, the wherein said second first electrode array couples with the described second second electrode array outside this second electrode lay by a lead, and this lead also is coupled to the 3rd connection gasket.

12. capacitive touch control plate as claimed in claim 1, wherein said first first electrode array and the described first second electrode array are arranged in parallel in this first electrode layer.

13. capacitive touch control plate as claimed in claim 12, wherein said second first electrode array and the described second second electrode array form notconnect state in this second electrode lay, and described second first electrode array and the described second second electrode array are accepted group's input synchronously, wherein when the described second first electrode array and the described second second electrode array were arranged in parallel, it is non-conterminous that the adjacent described second first electrode array is distinguished the corresponding described second second electrode array.

14. capacitive touch control plate as claimed in claim 13, wherein said second first electrode array and the described second second electrode array are arranged in parallel in this second electrode lay.

15. a method of making capacitive touch control plate comprises the following step:

Form one first electrode layer, it has many first first electrode arrays that distribute and the first second electrode array on a first direction, makes each this first first electrode array and this first second electrode array have a plurality of first direction electrodes respectively; Wherein said first first electrode array and the described first second electrode array form notconnect state in this first electrode layer;

Form a second electrode lay and this first electrode layer overlaid, make it have many second first electrode array and the second second electrode arrays that are provided with along this second direction; Wherein, make each described second first electrode array and the described second second electrode array have a plurality of these second direction electrodes respectively, this second direction and this first direction are staggered;

Described first first electrode array and the described first second electrode array are carried out synchronous group's input, wherein when the described first second electrode array of be arranged in parallel many described first first electrode arrays and many, it is non-conterminous to make the adjacent described first first electrode array distinguish the corresponding described first second electrode array; And

Form dielectric layer, it is located between this first electrode layer and this second electrode lay.

16. manufacture method as claimed in claim 15, wherein this first electrode layer formation step comprises:

Make described first first electrode array and the described first second electrode array on this first direction, be positioned at same row or same row.

17. manufacture method as claimed in claim 16, wherein this first electrode layer formation step comprises:

Form many described first first electrode arrays that are parallel to each other and corresponding many described first second electrode arrays; And

The described first direction electrode that makes the adjacent described first first electrode array have different quantity; Gap between wherein said many first first electrode arrays and described many first second electrode arrays is the sawtooth distribution and oblique line distributes one of them.

18. manufacture method as claimed in claim 16 also comprises the following step:

Forming one first connection gasket and one second connection gasket is arranged at outside this first electrode layer;

Extend a lead by one first end of this first electrode layer and couple the described first first electrode array and this first connection gasket; And

Extend a lead by one second end of this first electrode layer and couple the described first second electrode array and this second connection gasket.

19. manufacture method as claimed in claim 16 also comprises the following step:

Forming one first connection gasket is arranged at outside this first electrode layer;

Outside this first electrode layer, couple described first first electrode array and the described first second electrode array by a lead; And

Couple this lead in this first connection gasket.

20. manufacture method as claimed in claim 16, wherein this second electrode lay formation step comprises:

The described a plurality of second direction electrodes of the adjacent part of connecting form one second first electrode array;

The described a plurality of second direction electrodes of other adjacent parts of connecting form one second second electrode array; Wherein said second first electrode array and the described second second electrode array form notconnect state in this second electrode lay; And

Described second first electrode array and the described second second electrode array are carried out synchronous group's input.

21. manufacture method as claimed in claim 20, wherein this second electrode lay formation step comprises:

Form many described second first electrode arrays that are parallel to each other and corresponding many described second second electrode arrays; And

This second direction electrode that makes the adjacent described second first electrode array have different quantity; Gap between wherein said many second first electrode arrays and described many second second electrode arrays is the sawtooth distribution and oblique line distributes one of them.

22, manufacture method as claimed in claim 20 also comprises the following step:

One the 3rd connection gasket and one the 4th connection gasket are set outside this second electrode lay;

Extend a lead by one first end of this second electrode lay and couple described second first electrode array and the 3rd connection gasket; And

Extend a lead by one second end of this second electrode lay and couple described second second electrode array and the 4th connection gasket.

23. manufacture method as claimed in claim 20 also comprises the following step:

Forming one the 3rd connection gasket is arranged at outside this second electrode lay;

Outside this second electrode lay, couple described second first electrode array and the described second second electrode array by a lead; And

Couple this lead in the 3rd connection gasket.

24. manufacture method as claimed in claim 15, wherein this first electrode layer formation step comprises be arranged in parallel described first first electrode array and the described first second electrode array.

25. manufacture method as claimed in claim 24 also comprises: when many adjacent described first first electrode arrays detect signal simultaneously, decision signal is produced by adjacent described many first first electrode arrays.

26. manufacture method as claimed in claim 24, wherein this second electrode lay is provided with step and comprises:

Make described second first electrode array and the described second second electrode array in this second electrode lay, form notconnect state; And

Described second first electrode array and the described second second electrode array are carried out synchronous group's input, wherein when the described second second electrode array of be arranged in parallel many described second first electrode arrays and many, it is non-conterminous to make the adjacent described second first electrode array distinguish the corresponding described second second electrode array.

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