技术领域technical field
本发明有关一种触控传感器与相关方法，尤指一种在预定方向上以绝缘的两电极增进坐标分辨率并能有效减少误差的电容式触控传感器与相关方法。The invention relates to a touch sensor and a related method, in particular to a capacitive touch sensor and a related method which use two insulating electrodes in a predetermined direction to improve coordinate resolution and effectively reduce errors.
背景技术Background technique
触控屏幕组合了触控传感器的触控感测功能与显示面板的显示功能，能为使用者提供友善、直觉的操控界面，已经成为现代社会最受欢迎的人机界面之一。如何以较低的成本实现性能佳的触控屏幕，也成为现代信息厂商的研发重点。The touch screen combines the touch sensing function of the touch sensor and the display function of the display panel, and can provide users with a friendly and intuitive control interface, and has become one of the most popular human-machine interfaces in modern society. How to achieve a touch screen with good performance at a lower cost has also become the research and development focus of modern information manufacturers.
电容式触控传感器是在感测区域中设置多个电极来感应由使用者触控所引起的电容变化，进而计算/分析出受触控的触控位置。在触控传感器中，其触控位置的分辨率与正确性会和其成本有关。要增加触控位置的分辨率，可以在感测区域中增设相互绝缘的电极，独立地感测各电极上的电容变化以解析触控位置。不过，此种技术下的触控传感器(与相关的控制电路)都需要以较多的脚位来支持增设的电极，会大幅增加触控感测机制的成本。另一种技术是以双导体层上分别沿不同方向排列的电极来交织出触控感测的分辨率。不过，此种技术不仅脚位多，还需要另一层导体层，成本更高，良率也会因导体层增加而降低。In the capacitive touch sensor, a plurality of electrodes are arranged in the sensing area to sense the capacitance change caused by the user's touch, and then calculate/analyze the touched touch position. In a touch sensor, the resolution and accuracy of its touch position will be related to its cost. To increase the resolution of the touch position, electrodes insulated from each other can be added in the sensing area, and the capacitance changes on each electrode can be independently sensed to analyze the touch position. However, the touch sensor (and related control circuit) under this technology needs more pins to support the additional electrodes, which will greatly increase the cost of the touch sensing mechanism. Another technique is to interweave the resolution of touch sensing by electrodes arranged in different directions on the dual conductor layer. However, this technology not only has more pins, but also requires another layer of conductor layer, which is more costly, and the yield rate will also decrease due to the increase of conductor layer.
发明内容Contents of the invention
本发明的目的之一是提出一种较佳的单一导体层电容式触控传感器，其能以较低的脚位数提供较佳的分辨率。One of the objectives of the present invention is to provide a better single conductor layer capacitive touch sensor, which can provide better resolution with a lower number of pins.
为实现上述目的，本发明提供一种触控传感器，包含有：To achieve the above object, the present invention provides a touch sensor, comprising:
多个相互绝缘的感测群组，每一感测群组中包含有：Multiple sensing groups insulated from each other, each sensing group includes:
多个第一电极，形成于一导体层；a plurality of first electrodes formed on a conductive layer;
一导线，耦接于这些第一电极，用以在这些第一电极间导通电流；a wire coupled to the first electrodes for conducting current between the first electrodes;
多个第二电极，形成于该导体层；以及a plurality of second electrodes formed on the conductor layer; and
多个第三电极，形成于该导体层，；a plurality of third electrodes formed on the conductive layer;
其中，这些第一电极、这些第二电极与这些第三电极彼此绝缘，且每一该第一电极与每一该第三电极沿一第一方向排列。Wherein, the first electrodes, the second electrodes and the third electrodes are insulated from each other, and each of the first electrodes and each of the third electrodes are arranged along a first direction.
在所述的触控传感器中，每一该第一电极沿该第一方向的截面尺寸沿一第二方向改变，每一该第三电极沿该第一方向的截面尺寸亦沿该第二方向改变，而该第二方向垂直于该第一方向。In the touch sensor, the cross-sectional dimension of each of the first electrodes along the first direction changes along a second direction, and the cross-sectional dimension of each of the third electrodes along the first direction also changes along the second direction change, and the second direction is perpendicular to the first direction.
在所述的触控传感器中，每一该第二电极对应于一个该第一电极并与该对应的第一电极分别位于一对称轴的相异两侧，而每一该第三电极延伸跨越该对称轴。In the touch sensor, each of the second electrodes corresponds to one of the first electrodes and is located on different sides of a symmetry axis from the corresponding first electrode, and each of the third electrodes extends across the axis of symmetry.
在所述的触控传感器中，每一该第二电极与其对应的该第一电极沿该对称轴对称，而每一该第三电极亦沿该对称轴对称。In the touch sensor, each second electrode is symmetrical to its corresponding first electrode along the axis of symmetry, and each third electrode is also symmetrical along the axis of symmetry.
在所述的触控传感器中，每一该第一电极沿该第一方向邻接于一个该第三电极的对应部份，而该第一方向平行于该对称轴；每一该第一电极沿该第一方向的截面尺寸沿一第二方向改变，而在该邻接的第三电极的对应部份中，其沿该第一方向的截面尺寸则沿该第二方向以相反的趋势改变，而该第二方向垂直于该第一方向。In the touch sensor, each of the first electrodes is adjacent to a corresponding portion of the third electrode along the first direction, and the first direction is parallel to the axis of symmetry; each of the first electrodes is along the The cross-sectional dimension of the first direction changes along a second direction, and in the corresponding portion of the adjacent third electrode, the cross-sectional dimension along the first direction changes in the opposite direction along the second direction, and The second direction is perpendicular to the first direction.
在所述的触控传感器中，每一该第三电极沿该第一方向的截面尺寸沿一第二方向改变且于该对称轴达到极值，该第一方向平行于该对称轴，而该第二方向垂直于该第一方向。In the touch sensor, the cross-sectional size of each of the third electrodes along the first direction changes along a second direction and reaches an extreme value on the axis of symmetry, the first direction is parallel to the axis of symmetry, and the The second direction is perpendicular to the first direction.
在所述的触控传感器中，每一该感测群组中有多个第三电极，且每一该感测群组还包含有另一导线，耦接于这些第三电极，用以在这些第三电极间导通电流。In the touch sensor, each sensing group has a plurality of third electrodes, and each sensing group also includes another wire, coupled to these third electrodes, for A current is conducted between these third electrodes.
在所述的触控传感器中，这些第一电极与这些第三电极沿该第一方向交错排列。根据本发明一方面提供一种触控传感器，其是沿感测区域的x方向(亦可视为一水平方向)设置多个相互绝缘的感测群组，每一感测群组中进一步细分出多个第一电极、多个第二电极与多个第三电极，各第一电极、各第二电极与各第三电极设置于同一导体层但彼此相互绝缘(彼此不会导通电流)。在各感测群组中，另设有一第一导线、一第二导线及一第三导线；第一导线耦接于各感测群组中的多个第一电极，使这些第一电极能彼此导通电流(即电荷的流动)。同理，各感测群组中的第二导线将其多个第二电极相互耦接在一起，第三导线则将多个第三电极相互耦接为一体。In the touch sensor, the first electrodes and the third electrodes are alternately arranged along the first direction. According to one aspect of the present invention, a touch sensor is provided, which is provided with a plurality of mutually insulated sensing groups along the x-direction (which can also be regarded as a horizontal direction) of the sensing area, and each sensing group is further detailed A plurality of first electrodes, a plurality of second electrodes, and a plurality of third electrodes are divided, and each first electrode, each second electrode, and each third electrode are arranged on the same conductor layer but are insulated from each other (they will not conduct current with each other) ). In each sensing group, a first wire, a second wire and a third wire are additionally provided; the first wire is coupled to a plurality of first electrodes in each sensing group, so that these first electrodes can conduct current (i.e., flow of charge) to each other. Similarly, the second wires in each sensing group couple the plurality of second electrodes to each other, and the third wires couple the plurality of third electrodes to each other as a whole.
在前述触控传感器中，各第一电极、第二电极与第三电极沿感测区域的y方向(亦可视为一垂直方向)延伸，且各第一电极/第二电极与各第三电极沿x方向交错排列，使各第一电极/第二电极沿x方向邻接于各第三电极。在一实施例中，每一第一电极与一对应的第二电极分别位于一x方向对称轴的相异两侧，两者的形状与位置即沿此对称轴相互对称，中间则有一绝缘隙将两者分隔。相对地，第三电极则沿y方向延伸跨越此对称轴的两侧，其形状亦是沿此对称轴对称。若以y＝0与y＝H(H为一定值)来定义感测区域在y方向的下边界与上边界，前述对称轴即对应于y＝H/2，第一电极与对应的第二电极分别延伸于y＝H/2至y＝H与y＝0至y＝H/2的两范围中，第三电极则延伸于y＝0至y＝H的范围内。In the aforementioned touch sensor, each first electrode, second electrode, and third electrode extend along the y direction (which can also be regarded as a vertical direction) of the sensing area, and each first electrode/second electrode and each third electrode The electrodes are arranged in a staggered manner along the x direction, so that each first electrode/second electrode is adjacent to each third electrode along the x direction. In one embodiment, each first electrode and a corresponding second electrode are respectively located on different sides of a symmetry axis in the x direction, the shapes and positions of the two are symmetrical to each other along the symmetry axis, and there is an insulating gap in between Separate the two. In contrast, the third electrode extends along the y direction across the two sides of the axis of symmetry, and its shape is also symmetrical along the axis of symmetry. If y=0 and y=H (H is a certain value) are used to define the lower boundary and upper boundary of the sensing area in the y direction, the aforementioned axis of symmetry corresponds to y=H/2, and the first electrode and the corresponding second The electrodes respectively extend in two ranges from y=H/2 to y=H and y=0 to y=H/2, and the third electrode extends in a range from y=0 to y=H.
针对x方向的分辨率，由于本发明在x方向排列的各感测群组中又再细分出多个第一电极/第二电极与第三电极，故可改善x方向上的触控位置感测误差。此外，虽然各感测群组中有多个第一电极、多个第二电极与多个第三电极，然而这多个第一电极已彼此耦合，故只需一个脚位；同理，同一感测群组中多个第二电极亦只需一个脚位，多个第三电极也仅需一个脚位。同一感测群组总计仅需三个脚位即可。Regarding the resolution in the x direction, since the present invention further subdivides a plurality of first electrodes/second electrodes and third electrodes in each sensing group arranged in the x direction, the touch position in the x direction can be improved sensing error. In addition, although there are a plurality of first electrodes, a plurality of second electrodes and a plurality of third electrodes in each sensing group, the plurality of first electrodes are already coupled to each other, so only one pin is needed; similarly, the same The multiple second electrodes in the sensing group only need one pin, and the multiple third electrodes only need one pin. The same sensing group only needs three pins in total.
针对y方向的分辨率，本发明基本上只将感测区域分成y＝H/2至y＝H与y＝0至y＝H/2的两范围，再利用各第一电极、第二电极与第三电极的形状使不同y坐标的触控位置会耦合不同的电容变化量，以此来增进y方向坐标的分辨率。譬如说，第一/第二电极在x方向的截面尺寸会随着y方向改变，在不同的y坐标有不同的截面尺寸；相对地，在第三电极与第一/第二电极邻接的对应部份中，其x方向截面尺寸则沿y方向以相反的趋势改变。由于各第三电极系沿y＝H/2的对称轴对称，故第三电极的x方向截面尺寸会沿着y方向改变且于该对称轴达到极值(极大值或极小值)。因为本发明在y方向上划分了第一电极与第二电极，本发明在决定触控位置的y坐标时就可在y＝H/2至y＝H与y＝0至y＝H/2的两范围间进行加权平均，增进y方向的分辨率。由于电极形状的配合，即使同一感测群组只有三个脚位的输出，本发明还是能够精细地决定触控位置的y坐标。Regarding the resolution in the y direction, the present invention basically only divides the sensing area into two ranges from y=H/2 to y=H and y=0 to y=H/2, and then uses the first electrodes and the second electrodes to With the shape of the third electrode, touch positions with different y coordinates will couple different amounts of capacitance change, so as to improve the resolution of the coordinates in the y direction. For example, the cross-sectional size of the first/second electrode in the x direction will change with the y direction, and have different cross-sectional sizes at different y coordinates; In some parts, the cross-sectional dimension in the x direction changes in the opposite direction along the y direction. Since each third electrode is symmetrical along the symmetry axis of y=H/2, the cross-sectional dimension of the third electrodes in the x direction changes along the y direction and reaches an extremum (maximum value or minimum value) on the symmetry axis. Because the present invention divides the first electrode and the second electrode in the y direction, the present invention can be between y=H/2 to y=H and y=0 to y=H/2 when determining the y coordinate of the touch position. A weighted average is performed between the two ranges to improve the resolution in the y direction. Due to the coordination of electrode shapes, even if the same sensing group has only three output pins, the present invention can finely determine the y-coordinate of the touch position.
本发明的又一目的是提供一种感测触控的方法，应用于前述的本发明触控传感器。Another object of the present invention is to provide a touch sensing method, which is applied to the aforementioned touch sensor of the present invention.
为实现上述目的，本发明还提供一种感测触控的方法，应用于一触控传感器，用以决定该触控传感器受触控的触控位置；该触控传感器包含有多个第一电极与多个第二电极，这些第一电极与这些第二电极分别位于一对称轴的相异两侧且相互绝缘；该方法包含有：To achieve the above object, the present invention also provides a touch sensing method, which is applied to a touch sensor to determine the touch position of the touch sensor; the touch sensor includes a plurality of first An electrode and a plurality of second electrodes, the first electrodes and the second electrodes are respectively located on different sides of a symmetry axis and are insulated from each other; the method includes:
感测该第一电极所耦合的电容变化量以取得一第一变化值；sensing the change in capacitance coupled to the first electrode to obtain a first change value;
感测该第二电极所耦合的电容变化量以取得一第二变化值；sensing the variation of capacitance coupled to the second electrode to obtain a second variation value;
根据该第一变化值与该第二变化值获得一增益值，该增益值随该第一变化值与该第二变化值间的差异缩小而变小；obtaining a gain value according to the first change value and the second change value, and the gain value becomes smaller as the difference between the first change value and the second change value decreases;
根据该增益值补偿一预定方向的坐标，以决定该触控位置在该预定方向的坐标，其中该预定方向垂直于该对称轴，进一步包括：Compensating the coordinates of a predetermined direction according to the gain value to determine the coordinates of the touch position in the predetermined direction, wherein the predetermined direction is perpendicular to the symmetry axis, further comprising:
根据该第一变化值与该第二变化值决定一坐标偏移量；determining a coordinate offset according to the first change value and the second change value;
根据该坐标偏移量与该增益值的乘积决定该坐标与一基准坐标间的差异；以及determining the difference between the coordinate and a reference coordinate based on the product of the coordinate offset and the gain value; and
依据该对称轴于该预定方向的坐标决定该基准坐标。The reference coordinates are determined according to the coordinates of the symmetry axis in the predetermined direction.
在所述的方法中，该增益值符合下列条件：In the described method, the gain value meets the following conditions:
当该第一变化值趋近于该第二变化值时，该增益值亦趋近于零；以及When the first change value approaches the second change value, the gain value also approaches zero; and
当该第一变化值与该第二变化值间的差异增大时，该增益值趋近于一固定值。When the difference between the first change value and the second change value increases, the gain value tends to a fixed value.
在所述的方法中，该触控传感器还包含有：多个第三电极，每一该第三电极延伸至该对称轴的相异两侧，多个第三电极分别与多个第一电极和多个第二电极相邻但彼此绝缘。In the above method, the touch sensor further includes: a plurality of third electrodes, each of which extends to different sides of the axis of symmetry, and the plurality of third electrodes are respectively connected to the plurality of first electrodes. Adjacent to the plurality of second electrodes but insulated from each other.
在所述的方法中，还包含有：In said method, also include:
感测该第三电极所耦合的电容变化量以取得一第三变化值；以及sensing the change in capacitance coupled to the third electrode to obtain a third change value; and
根据该第一变化值、该第二变化值与该第三变化值决定该坐标偏移量。The coordinate offset is determined according to the first change value, the second change value and the third change value.
本发明的感测触控的方法其主要步骤可简述如下：感测各第一电极所耦合的电容变化量以取得一第一变化值；感测各第二电极所耦合的电容变化量以取得一第二变化值；感测各第三电极耦合的电容变化量以取得一第三变化值；根据第一变化值与第二变化值的差异获得一增益值；而在计算触控位置的y坐标时，就可根据增益值补偿y坐标，计算该y坐标与一基准坐标间的差异，以决定触控位置的y坐标。由于第一电极与第二电极间有一绝缘隙隔离两者，此绝缘隙可能会在计算触控位置的y坐标时引入误差。而前述的增益值就是用来降低此绝缘隙引发的误差。此增益值会随第一变化值与第二变化值间的差异缩小而变小；更具体地说，这个增益值会符合下列条件：当第一变化值与第二变化值相互趋近时，增益值亦趋近于零；当第一变化值与第二变化值间的差异增大时，增益值则趋近于一固定值。The main steps of the touch sensing method of the present invention can be briefly described as follows: sensing the change in capacitance coupled to each first electrode to obtain a first change value; sensing the change in capacitance coupled to each second electrode to obtain a first change value Obtain a second change value; sense the capacitance change amount coupled by each third electrode to obtain a third change value; obtain a gain value according to the difference between the first change value and the second change value; and calculate the touch position y coordinate, the y coordinate can be compensated according to the gain value, and the difference between the y coordinate and a reference coordinate can be calculated to determine the y coordinate of the touch position. Since there is an insulating gap between the first electrode and the second electrode to isolate them, the insulating gap may introduce errors when calculating the y-coordinate of the touch position. The aforementioned gain value is used to reduce the error caused by the insulation gap. This gain value will decrease as the difference between the first variation value and the second variation value decreases; more specifically, the gain value will meet the following conditions: when the first variation value and the second variation value approach each other, The gain value also tends to zero; when the difference between the first change value and the second change value increases, the gain value tends to a fixed value.
在计算触控位置的y坐标时，本发明可根据第一变化值、第二变化值与第三变化值决定一坐标偏移量，再根据坐标偏移量与增益值的乘积决定触控位置y坐标与一基准坐标间的差异；事实上，此基准坐标即y＝H/2。When calculating the y coordinate of the touch position, the present invention can determine a coordinate offset according to the first change value, the second change value and the third change value, and then determine the touch position according to the product of the coordinate offset and the gain value The difference between the y-coordinate and a reference coordinate; in fact, this reference coordinate is y=H/2.
由以上叙述可知，本发明可在单一导体层上实现出脚位数低但分辨率高的触控传感器。由于仅需单一导体层，故本发明触控传感器可以方便地和显示面板整合在一起。在现行技术中，触控传感器与显示面板通常是由不同的厂商用不同的工序分别制造，再组合在一起以形成一触控屏幕。此种技术会增加制造、加工、组装的成本与时间，不利于触控屏幕的普及。相较之下，在本发明中，实现触控传感器的导体层与显示面板的像素电极导体层是以相同工序整合于同一触控显示面板，故在显示面板完成后，触控感测功能就已经内建于其中，可降低触控屏幕的制造成本与时间。It can be known from the above description that the present invention can realize a touch sensor with a low number of pins but a high resolution on a single conductor layer. Since only a single conductor layer is required, the touch sensor of the present invention can be conveniently integrated with the display panel. In the current technology, the touch sensor and the display panel are usually manufactured by different manufacturers using different processes, and then assembled together to form a touch screen. This technology will increase the cost and time of manufacturing, processing and assembling, which is not conducive to the popularization of touch screens. In contrast, in the present invention, the conductive layer of the touch sensor and the conductive layer of the pixel electrode of the display panel are integrated into the same touch display panel through the same process, so after the display panel is completed, the touch sensing function will be completed. Already built into it, the manufacturing cost and time of the touch screen can be reduced.
本发明的又一目的是提供一种整合有触控传感器的触控显示面板。Another object of the present invention is to provide a touch display panel integrated with a touch sensor.
本发明的触控显示面板设有一第一偏极片、一上玻璃基板、一第一导体层、一滤色片、一第二导体层、一显示单元结构、一下玻璃基板及一第二偏极片。第一偏极片用以使一第一极化方向的光线得以穿透，而第二偏极片则用以使一第二极化方向的光线得以穿透。第一极化方向与第二极化方向可以是相同或相异的。第一导体层设置有多个电极，用以传输电子信号以反应在该显示面板上的触控。第二导体层则设置显示面板的像素电极。显示单元结构用以形成多个显示单元。滤色片用以使不同显示单元可呈现多个色彩。The touch display panel of the present invention is provided with a first polarizer, an upper glass substrate, a first conductor layer, a color filter, a second conductor layer, a display unit structure, a lower glass substrate and a second polarizer. pole piece. The first polarizer is used to transmit light in a first polarization direction, and the second polarizer is used to transmit light in a second polarization direction. The first polarization direction and the second polarization direction may be the same or different. The first conductor layer is provided with a plurality of electrodes for transmitting electronic signals to respond to the touch on the display panel. The second conductive layer is provided with pixel electrodes of the display panel. The display unit structure is used to form a plurality of display units. The color filters are used to enable different display units to display multiple colors.
在一实施例中，第一导体层亦用来传输共同电压，其是以多个绝缘隙划分出各电极。在另一实施例中，第一导体层与第二导体层间可增设一第三导体层，用以传输共同电压。又一实施例中，此第三导体层以多个绝缘隙划分出多个电极，并与第一导体层上的电极搭配交织出触控感测的分辨率，实现双导体层的触控传感器。再一实施例中，第三导体层不设绝缘隙，另增设一第四导体层并设置电极，以和第一导体层的电极一起实现双导体层触控传感器。In one embodiment, the first conductor layer is also used to transmit a common voltage, and each electrode is divided by a plurality of insulating gaps. In another embodiment, a third conductor layer may be added between the first conductor layer and the second conductor layer to transmit a common voltage. In yet another embodiment, the third conductor layer divides a plurality of electrodes with a plurality of insulation gaps, and cooperates with the electrodes on the first conductor layer to achieve the resolution of touch sensing, realizing a touch sensor with dual conductor layers . In yet another embodiment, the third conductor layer does not have an insulation gap, and a fourth conductor layer is additionally provided with electrodes, so as to implement a dual-conductor layer touch sensor together with the electrodes of the first conductor layer.
本发明的再一目的是提供一种制造上述触控显示面板的方法。Another object of the present invention is to provide a method for manufacturing the above-mentioned touch display panel.
本发明的制造触控显示面板的方法其主要步骤可描述如下：在上玻璃基板上，以一导体工序形成一第一导体层，并设置多个相互绝缘的电极；形成滤色片，并在下玻璃基板以该导体工序形成一第二导体层并设置像素电极。另外，亦可以该预设工序在第一导体层与第二导体层之间形成第三、第四导体层。在形成第一或第三导体层时，亦可用多个绝缘隙划分出多个电极。The main steps of the method for manufacturing a touch display panel of the present invention can be described as follows: on the upper glass substrate, a first conductor layer is formed by a conductor process, and a plurality of mutually insulated electrodes are arranged; a color filter is formed, and the lower A second conductor layer is formed on the glass substrate by the conductor process and a pixel electrode is arranged. In addition, the predetermined process can also form the third and fourth conductor layers between the first conductor layer and the second conductor layer. When forming the first or third conductor layer, a plurality of insulating gaps can also be used to divide a plurality of electrodes.
为了使能更进一步了解本发明特征及技术内容，请参阅以下有关本发明的详细说明与附图，然而附图仅提供参考与说明，并非用来对本发明加以限制。In order to further understand the features and technical content of the present invention, please refer to the following detailed description and drawings related to the present invention. However, the drawings are only for reference and illustration, and are not intended to limit the present invention.
附图说明Description of drawings
本发明得通过下列附图及说明，可获得一更深入的了解：The present invention can obtain a deeper understanding through the following drawings and descriptions:
图1示意的是本发明触控传感器的一实施例。FIG. 1 schematically shows an embodiment of the touch sensor of the present invention.
图2是以平面图来示意图1中的触控传感器。FIG. 2 is a plan view schematically illustrating the touch sensor in 1 .
图3及图4示意的是图1触控传感器在感测触控位置y坐标时的情形。3 and 4 illustrate the situation when the touch sensor in FIG. 1 senses the y-coordinate of the touch position.
图5示意的是图1触控传感器在未导入增益值前针对触控位置计算得出的感测y坐标与实际y坐标，并示意了修正用的增益值。FIG. 5 schematically shows the sensing y-coordinate and the actual y-coordinate calculated for the touch position before the touch sensor in FIG. 1 imports the gain value, and shows the gain value for correction.
图6示意的是图1触控传感器在根据图5中增益值进行修正后使触控位置的感测y坐标趋近实际y坐标的情形。FIG. 6 schematically shows the situation where the sensed y-coordinate of the touch position approaches the actual y-coordinate after the touch sensor in FIG. 1 is corrected according to the gain value in FIG. 5 .
图7示意的是应用图1触控传感器计算触控位置y坐标的流程。FIG. 7 schematically shows the process of calculating the y-coordinate of the touch position by using the touch sensor in FIG. 1 .
图8为本发明触控传感器另一实施例的示意图。FIG. 8 is a schematic diagram of another embodiment of the touch sensor of the present invention.
图9至图14示意的是本发明显示面板的实施例。9 to 14 illustrate embodiments of the display panel of the present invention.
图15示意的是制作本发明显示面板的流程。FIG. 15 schematically shows the process of manufacturing the display panel of the present invention.
具体实施方式Detailed ways
请参考图1与图2，其所示意的是本发明触控传感器一实施例10的示意图。如图1所示，本发明触控传感器10可用多个电极U(1)至U(M*N)、多个电极L(1)至L(M*N)与多个电极D(1)至D(M*N)来实现；其中M、N为整数定值，M可以大于或等于1，N则可以大于1。这些电极可设置于单一导体层ITO1内的一感测区域SA中；此导体层可为氧化铟锡(indium tin oxide，ITO)透明导体层。在感测区域SA中，各电极可耦合使用者因触控所导致的电荷与电容变化；而感测区域SA的外则可用其它构造(未绘出)与触控操作隔离。在实现触控屏幕时，感测区域SA也可视为一可视区域，让显示面板的影像能穿透感测区域SA以呈现予使用者。感测区域SA可定义出一个xy平面，触控传感器10就是要在感测区域SA的范围中感测触控位置的x坐标与y坐标，而图2进一步示意本发明触控传感器10的各电极在xy平面上的配置。Please refer to FIG. 1 and FIG. 2 , which illustrate a schematic view of an embodiment 10 of the touch sensor of the present invention. As shown in FIG. 1 , the touch sensor 10 of the present invention can use a plurality of electrodes U(1) to U(M*N), a plurality of electrodes L(1) to L(M*N) and a plurality of electrodes D(1) to D(M*N); where M and N are integer fixed values, M can be greater than or equal to 1, and N can be greater than 1. These electrodes may be disposed in a sensing area SA within a single conductor layer ITO1; the conductor layer may be an indium tin oxide (ITO) transparent conductor layer. In the sensing area SA, each electrode can be coupled to the charge and capacitance changes caused by the user's touch; while the outside of the sensing area SA can be isolated from the touch operation by other structures (not shown). When implementing a touch screen, the sensing area SA can also be regarded as a visible area, so that the image of the display panel can penetrate the sensing area SA to be presented to the user. The sensing area SA can define an xy plane. The touch sensor 10 is to sense the x-coordinate and the y-coordinate of the touch position within the range of the sensing area SA. FIG. 2 further illustrates the touch sensor 10 of the present invention. Electrode configuration on the xy plane.
如图2所示，各电极U(1)至U(M*N)的形状相同、电极L(1)至L(M*N)的形状相同，而电极D(1)至D(M*N)的形状亦相同。以第k个电极U(k)、L(k)与D(k)为例来说明(其中k可为1至M*N)，各电极U(k)、L(k)与D(k)沿感测区域SA的y方向(亦可视为一垂直方向)呈指状延伸。在图2的实施例中，电极U(k)对应于电极L(k)，两者分别位于一x方向对称轴A3的相异两侧，两者的形状与位置即沿对称轴A3相互对称，中间则有一绝缘隙将两者分隔。相对地，电极D(k)则沿y方向延伸跨越此对称轴A3的两侧，其形状亦是沿此对称轴A3对称。若以y＝0与y＝H来定义感测区域SA在y方向的下边界与上边界，对称轴A3即对应于y＝H/2，电极U(k)延伸于y＝H/2至y＝H的范围中，电极L(k)在y＝0至y＝H/2的范围中延伸，电极D(k)则延伸于y＝0至y＝H的范围内。As shown in Figure 2, the electrodes U(1) to U(M*N) have the same shape, the electrodes L(1) to L(M*N) have the same shape, and the electrodes D(1) to D(M*N) The shape of N) is also the same. Taking the kth electrode U(k), L(k) and D(k) as an example (where k can be from 1 to M*N), each electrode U(k), L(k) and D(k ) extend in a finger shape along the y direction (which can also be regarded as a vertical direction) of the sensing area SA. In the embodiment of Fig. 2, the electrode U(k) corresponds to the electrode L(k), and the two are respectively located on different sides of the symmetry axis A3 in the x direction, and the shapes and positions of the two are symmetrical to each other along the symmetry axis A3 , There is an insulating gap in the middle to separate the two. In contrast, the electrode D(k) extends along the y direction across both sides of the axis of symmetry A3 , and its shape is also symmetrical along the axis of symmetry A3 . If y=0 and y=H are used to define the lower boundary and upper boundary of the sensing area SA in the y direction, the axis of symmetry A3 corresponds to y=H/2, and the electrode U(k) extends from y=H/2 to In the range of y=H, the electrode L(k) extends from y=0 to y=H/2, and the electrode D(k) extends from y=0 to y=H.
基于电极U(k)与L(k)的排列对称性，以下将以电极U(k)为例来说明电极U(k)/L(k)与电极D(k)的排列、形状与相对关系。在y＝H/2至y＝H的范围中，电极U(k)与电极D(k)沿x方向交错排列，使各电极U(k)沿x方向邻接于电极D(k)。电极U(k)的侧边uR与电极D(k)的侧边dL可以是相互平行的，两侧边间隔距离d0；电极D(k)的另一侧边dR和次一电极U(k+1)的侧边uL也可以是相互平行的，间隔距离d1(其可和距离d0相同或不同)。换句话说，电极U(k)、D(k)与U(k+1)是相互绝缘且沿x方向交错排列。如图2所示，电极U(k)在x方向上的截面宽度(截面尺寸)w会沿着y方向改变，在不同的y坐标有不同的截面宽度w；相对地，在y＝H/2至y＝H的范围中，对于电极D(k)与电极U(k)邻接的对应部份来说，其x方向截面宽度w’则沿y方向以相反的趋势改变。在图2的实施例中，随着电极U(k)的截面宽度w由宽度w2减少(譬如说是线性地递减)至宽度w1时，电极D(k)的截面宽度则相对地增加(譬如说是线性地递增)。由于电极U(k)系沿y＝H/2的对称轴A3对称，故电极U(k)的截面宽度w会在y＝H至y＝H/2的范围间沿着y方向改变，且于对称轴A3达到极值(在图2的例子中是一极大值)。另外，电极U(k)/L(k)可以是沿着y方向对称轴A1对称的(呈一等腰三角形或等腰梯形)，电极D(k)则可以是沿着y方向对称轴A2呈左右对称的。于另一实施例中，电极U(k)/L(k)也不一定要是等腰三角形/梯形，同理，电极D(k)也不一定要左右对称。Based on the symmetry of the arrangement of electrodes U(k) and L(k), the following will take electrode U(k) as an example to illustrate the arrangement, shape and relative relationship between electrode U(k)/L(k) and electrode D(k). relation. In the range from y=H/2 to y=H, the electrodes U(k) and D(k) are alternately arranged along the x direction, so that each electrode U(k) is adjacent to the electrode D(k) along the x direction. The side uR of the electrode U(k) and the side dL of the electrode D(k) can be parallel to each other, and the distance between the two sides is d0; the other side dR of the electrode D(k) and the next electrode U(k) The sides uL of +1) may also be parallel to each other at a distance d1 apart (which may be the same as or different from the distance d0). In other words, the electrodes U(k), D(k) and U(k+1) are insulated from each other and arranged alternately along the x direction. As shown in Figure 2, the section width (section size) w of the electrode U(k) in the x direction will change along the y direction, and have different section width w at different y coordinates; relatively, at y=H/ In the range from 2 to y=H, for the corresponding portion adjacent to the electrode D(k) and the electrode U(k), the cross-sectional width w' in the x direction changes in the opposite direction along the y direction. In the embodiment of FIG. 2, as the cross-sectional width w of the electrode U(k) decreases from the width w2 (for example, linearly decreases) to the width w1, the cross-sectional width of the electrode D(k) increases relatively (for example, said to increase linearly). Since the electrode U(k) is symmetrical along the symmetry axis A3 of y=H/2, the cross-sectional width w of the electrode U(k) will change along the y direction in the range from y=H to y=H/2, and An extremum (in the example of FIG. 2 a maximum) is reached at the axis of symmetry A3. In addition, the electrode U(k)/L(k) can be symmetrical along the y-direction symmetry axis A1 (an isosceles triangle or isosceles trapezoid), and the electrode D(k) can be along the y-direction symmetry axis A2 It is left-right symmetrical. In another embodiment, the electrode U(k)/L(k) does not have to be isosceles triangle/trapezoid, and similarly, the electrode D(k) does not have to be left-right symmetrical.
在电极U(1)至U(M*N)、电极L(1)至L(M*N)与电极D(1)至D(M*N)中，前M个电极U(1)至U(M)、电极L(1)至L(M)与电极D(1)至D(M)形成一感测群组；在此感测群组中，电极U(1)至U(M)以一导线12A耦合在一起，以使电极U(1)至U(M)间能彼此导通电流，并将各电极U(1)至U(M)耦合到的总电容变化值反应于电子信号dCU(1)；同理，电极L(1)至L(M)以导线12B耦合在一起以在信号dCL(1)中反应电极L(1)至L(M)耦合到的电容变化值，电极D(1)至D(M)也以导线12C耦合在一起以将其感应到的电容变化值反应至对应的信号dCD(1)。Among electrodes U(1) to U(M*N), electrodes L(1) to L(M*N) and electrodes D(1) to D(M*N), the first M electrodes U(1) to U(M), electrodes L(1) to L(M), and electrodes D(1) to D(M) form a sensing group; in this sensing group, electrodes U(1) to U(M ) are coupled together with a wire 12A, so that the electrodes U(1) to U(M) can conduct current with each other, and the total capacitance change value coupled to each electrode U(1) to U(M) is reflected in Electronic signal dCU(1); Similarly, the electrodes L(1) to L(M) are coupled together with wire 12B to reflect the capacitance change of the electrodes L(1) to L(M) coupled to in the signal dCL(1) The electrodes D( 1 ) to D(M) are also coupled together by the wire 12C to reflect the capacitance change value sensed by them to the corresponding signal dCD( 1 ).
依循类似的架构，次M个电极U(M+1)至U(2M)、L(M+1)至L(2M)与D(M+1)至D(2M)亦形成次一感测群组，分别提供信号dCU(2)、dCL(2)与dCD(2)。最后M个电极U((N-1)*M+1)至U(N*M)、L((N-1)*M+1)至L(N*M)与D((N-1)*M+1)至D(N*M)则形成第N个感测群组，提供信号dCU(N)、dCL(N)与dCD(N)。Following a similar structure, the next M electrodes U(M+1) to U(2M), L(M+1) to L(2M) and D(M+1) to D(2M) also form the next sensing The group provides signals dCU(2), dCL(2) and dCD(2) respectively. The last M electrodes U((N-1)*M+1) to U(N*M), L((N-1)*M+1) to L(N*M) and D((N-1 )*M+1) to D(N*M) form the Nth sensing group to provide signals dCU(N), dCL(N) and dCD(N).
换句话说，本发明是沿感测区域SA的x方向设置N个感测群组，每一感测群组中进一步细分出M个电极U(k)、M个电极L(k)与M个电极D(k)；虽然各感测群组中有三组的多个电极U(k)、L(k)与D(k)，但因为同类的电极是相互耦合的，故同一感测群组总计仅需三个脚位以传输三个信号dCU(n)、dCL(n)与dCD(n)(其中n等于1到N)。In other words, the present invention arranges N sensing groups along the x direction of the sensing area SA, and each sensing group is further subdivided into M electrodes U(k), M electrodes L(k) and M electrodes D(k); although there are three sets of multiple electrodes U(k), L(k) and D(k) in each sensing group, because the electrodes of the same type are coupled to each other, the same sensing The group only needs three pins in total to transmit three signals dCU(n), dCL(n) and dCD(n) (where n is equal to 1 to N).
当要根据本发明触控传感器10的感测结果来分析触控位置的x坐标时，就是根据各感测群组的x坐标与各感测群组的信号dCU(n)、dCL(n)与dCD(n)来进行加权平均以求出触控位置的x坐标。由于本发明在x方向排列的各感测群组中又再细分出M个电极U(k)、L(k)与D(k)，可以改善x方向上的触控位置感测误差。When analyzing the x-coordinate of the touch position according to the sensing result of the touch sensor 10 of the present invention, it is based on the x-coordinate of each sensing group and the signals dCU(n), dCL(n) of each sensing group Perform weighted average with dCD(n) to obtain the x-coordinate of the touch position. Since the present invention subdivides M electrodes U(k), L(k) and D(k) in each sensing group arranged in the x direction, the touch position sensing error in the x direction can be improved.
在分析触控位置的y坐标时，本发明运作的原理则可用图3来示意说明。当触控位置分别落在TPa与TPb时，触控位置TPa与电极L(m)的重叠部份较少，触控位置TPb与电极L(m)的重叠部份则较多。因此，在触控位置TPb，电极L(m)所耦合到的电容变化量会较大。相对地，在触控位置TPb，电极D(m)所耦合到的电容变化量则较少。相较之下，不论在触控位置TPa或TPb，电极U(m)所耦合到的电容变化量则极少(或几近于无)。根据各感测群组在信号dCU(n)、dCL(n)与dCD(n)的大小相对关系，就可决定触控位置的y坐标。因为本发明在y方向上划分了电极U(k)与L(k)，本发明在决定触控位置的y坐标时就可在y＝H/2至y＝H与y＝0至y＝H/2的两范围间进行加权平均，增进y方向的分辨率。由于电极形状的配合，即使同一感测群组只有三个脚位的输出，本发明还是能够精细地解析触控位置的y坐标。When analyzing the y-coordinate of the touch position, the operating principle of the present invention can be schematically illustrated in FIG. 3 . When the touch positions fall on TPa and TPb respectively, the overlap between the touch position TPa and the electrode L(m) is less, and the overlap between the touch position TPb and the electrode L(m) is more. Therefore, at the touch position TPb, the amount of capacitance coupled to the electrode L(m) will be larger. In contrast, at the touch position TPb, the amount of capacitance change coupled to the electrode D(m) is less. In contrast, no matter at the touch position TPa or TPb, the amount of capacitance coupled to the electrode U(m) is very little (or almost none). According to the relative relationship between the magnitudes of the signals dCU(n), dCL(n) and dCD(n) of each sensing group, the y-coordinate of the touch position can be determined. Because the present invention divides the electrodes U(k) and L(k) in the y direction, the present invention can determine the y coordinate of the touch position between y=H/2 to y=H and y=0 to y= A weighted average is performed between the two ranges of H/2 to improve the resolution in the y direction. Due to the coordination of electrode shapes, even if the same sensing group has only three output pins, the present invention can finely analyze the y-coordinate of the touch position.
另一方面，由于电极U(k)与L(k)间有绝缘隙来隔绝两者，当触控位置的y坐标接近H/2时，此绝缘隙容易导入y坐标的误差。关于此情形，请参考图4。当触控位置落在TPc时，由于电极U(k)与L(k)间的绝缘隙会减少触控位置TPc所接触到的电极面积，故电极U(m)、L(m)与D(m)在触控位置TPc上所反应的电容变化量与在触控位置TPb(图3)上所反应的电容变化量可能差不多，即使触控位置TPc的y坐标比触控位置TPb的y坐标更接近H/2。由电极U(k)与L(k)间的绝缘隙所引起的y坐标误差可进一步由图5来说明。图5的横轴代表触控位置实际的y坐标，纵轴代表由各电极感测到的电容变化量所决定的y坐标。在理想的情形下，触控位置的实际y坐标应该和感测的y坐标一致。然而，就如前面讨论过的，虽然触控位置TPb与TPc的实际y坐标有异，但因为绝缘隙的存在，在这两个触控位置感测的y坐标会相当接近，导致y坐标解析的误差。On the other hand, since there is an insulating gap between the electrodes U(k) and L(k) to isolate them, when the y-coordinate of the touch position is close to H/2, the insulating gap easily introduces an error in the y-coordinate. Please refer to Figure 4 for this scenario. When the touch position falls on TPc, since the insulating gap between the electrodes U(k) and L(k) will reduce the area of the electrodes contacted by the touch position TPc, the electrodes U(m), L(m) and D (m) The capacitance change reflected at the touch position TPc may be similar to the capacitance change reflected at the touch position TPb (Figure 3), even if the y coordinate of the touch position TPc is larger than the y coordinate of the touch position TPb The coordinates are closer to H/2. The y-coordinate error caused by the insulating gap between the electrodes U(k) and L(k) can be further illustrated by FIG. 5 . The horizontal axis in FIG. 5 represents the actual y-coordinate of the touch position, and the vertical axis represents the y-coordinate determined by the capacitance variation sensed by each electrode. Ideally, the actual y-coordinate of the touch position should be the same as the sensed y-coordinate. However, as discussed above, although the actual y-coordinates of the touch positions TPb and TPc are different, due to the existence of the insulation gap, the y-coordinates sensed at these two touch positions will be quite close, resulting in the analysis of the y-coordinates error.
于此实施例中，为了改善前述的误差，在分析触控位置的y坐标时引入一增益补偿以进行误差的修正。可比较各电极U(k)所反应的电容变化量与各电极L(k)所反应的电容变化量，根据两者间的差异来计算增益值。图5中亦示意了本发明所设计的增益值；当电极U(k)、L(k)的电容变化量相互趋近时，代表触控位置的y坐标接近H/2，此时，增益值可以趋近于一固定值C0(譬如说是0)，以消除绝缘隙导致的误差。当电极U(k)与L(k)所反应的电容变化量有较大的差异时，代表触控位置的y坐标已经倾向y＝H或y＝0而离开绝缘隙所在的y＝H/2，故增益值可趋近另一固定值C1(譬如说是1)，不必再进行修正。在计算触控位置的y坐标时，本发明可根据各电极U(k)、L(k)与D(k)所反应的电容变化量计算一y坐标偏移量Dy，再根据y坐标偏移量Dy与增益值的乘积计算触控位置y坐标与一基准坐标间的差异；事实上，此基准坐标即y＝H/2，代表绝缘隙的位置。也就是说，当触控位置的y坐标接近H/2时，即使y坐标偏移量Dy有所误差，但因为增益值也会减少以降低y坐标偏移量Dy的影响，故感测到的y坐标就会接近实际的y坐标。经由增益值的修正后，本发明感测触控位置y坐标的情形就如图6所示；在修正后，感测到的y坐标可以正常地符合触控位置的实际y坐标。In this embodiment, in order to improve the aforementioned error, a gain compensation is introduced to correct the error when analyzing the y-coordinate of the touch position. The capacitance variation reflected by each electrode U(k) can be compared with the capacitance variation reflected by each electrode L(k), and the gain value can be calculated according to the difference between the two. Fig. 5 also shows the gain value designed by the present invention; when the capacitance variations of the electrodes U(k) and L(k) approach each other, the y coordinate representing the touch position is close to H/2. At this time, the gain The value can be close to a fixed value C0 (for example, 0) to eliminate the error caused by the insulation gap. When there is a large difference in the capacitance change reflected by the electrodes U(k) and L(k), it means that the y-coordinate of the touch position has tended to y=H or y=0 and is away from the y=H/ 2, so the gain value can approach another fixed value C1 (for example, 1), and no further correction is necessary. When calculating the y-coordinate of the touch position, the present invention can calculate a y-coordinate offset Dy according to the capacitance changes reflected by the electrodes U(k), L(k) and D(k), and then calculate the y-coordinate offset according to the y-coordinate deviation The product of the displacement Dy and the gain value calculates the difference between the y coordinate of the touch position and a reference coordinate; in fact, the reference coordinate is y=H/2, which represents the position of the insulation gap. That is to say, when the y-coordinate of the touch position is close to H/2, even if there is an error in the y-coordinate offset Dy, the gain value will decrease to reduce the influence of the y-coordinate offset Dy. The y coordinate of will be close to the actual y coordinate. After correction of the gain value, the y-coordinate of the touch position sensed by the present invention is as shown in FIG. 6 ; after correction, the sensed y-coordinate can normally conform to the actual y-coordinate of the touch position.
本发明应用触控传感器10决定触控位置y坐标的运作可由图7的流程700加以说明。流程700的主要步骤可简述如下：The operation of determining the y-coordinate of the touch position by using the touch sensor 10 in the present invention can be illustrated by the process 700 in FIG. 7 . The main steps of the process 700 can be briefly described as follows:
步骤702：感测各感测群组中由各电极U(k)所耦合的电容变化量、各电极L(k)所耦合的电容变化量与各电极D(k)所耦合的电容变化量。Step 702: Sensing the capacitance variation coupled by each electrode U(k), the capacitance variation coupled by each electrode L(k), and the capacitance variation coupled by each electrode D(k) in each sensing group .
步骤704：根据电极U(k)的电容变化量与电极L(k)的电容变化量计算两者间的差异以获得增益值，就如图5中所示。Step 704: Calculate the difference between the capacitance variation of the electrode U(k) and the capacitance variation of the electrode L(k) to obtain a gain value, as shown in FIG. 5 .
步骤706：根据各感测群组中由各电极U(k)、电极L(k)与电极D(k)反应的电容变化量决定一y坐标偏移量。此y坐标偏移量代表触控位置y坐标与H/2间的偏移量。如图5中讨论过的，由于电极U(k)与L(k)间的绝缘隙，根据此y坐标偏移量计算出来的感测y坐标会有所误差。Step 706 : Determine a y-coordinate offset according to the capacitance variation reacted by each electrode U(k), electrode L(k) and electrode D(k) in each sensing group. The y-coordinate offset represents the offset between the y-coordinate of the touch position and H/2. As discussed in FIG. 5 , due to the insulation gap between the electrodes U(k) and L(k), the sensing y-coordinate calculated according to the y-coordinate offset will have an error.
步骤708：根据增益值来修正步骤706中的y坐标偏移量，得出一个补偿后的y坐标偏移量。譬如说，可将步骤706中的y坐标偏移量与步骤704中的增益值相乘，根据其乘积来决定修正后的y坐标偏移量，并据此来决定触控位置的y坐标。Step 708: Correct the y-coordinate offset in step 706 according to the gain value to obtain a compensated y-coordinate offset. For example, the y-coordinate offset in step 706 can be multiplied by the gain value in step 704, and the corrected y-coordinate offset can be determined according to the product, and the y-coordinate of the touch position can be determined accordingly.
在流程700中，各步骤的顺序可在适当的情形下加以改变。譬如说，步骤704与706的顺序可以调换，或者，步骤704与706可同步进行。In the process 700, the order of the steps can be changed under appropriate circumstances. For example, the order of steps 704 and 706 can be reversed, or steps 704 and 706 can be performed simultaneously.
请参考图8，其所示意的是本发明触控传感器另一实施例20的示意图。类似于图2中的触控传感器10，图8中的触控传感器20包含M*N个电极U(1)至U(M*N)、L(1)至L(M*N)与D(1)至D(M*N)，以M个电极U(k)、L(k)与D(k)为一感测群组以形成N个感测群组。于此实施例中，图8中各电极U(k)、L(k)与D(k)的形状已经有所改变。譬如说，在图8中的电极D(k)，其沿x方向的截面宽度是在y＝H/2的地方达到极大值。至于触控传感器20的运作情形与原理与触控传感器10相似，于此不再赘述。Please refer to FIG. 8 , which is a schematic diagram of another embodiment 20 of the touch sensor of the present invention. Similar to the touch sensor 10 in FIG. 2, the touch sensor 20 in FIG. 8 includes M*N electrodes U(1) to U(M*N), L(1) to L(M*N) and D (1) to D(M*N), taking M electrodes U(k), L(k) and D(k) as a sensing group to form N sensing groups. In this embodiment, the shapes of the electrodes U(k), L(k) and D(k) in FIG. 8 have been changed. For example, for the electrode D(k) in FIG. 8 , its cross-sectional width along the x direction reaches a maximum value at y=H/2. The operating conditions and principles of the touch sensor 20 are similar to those of the touch sensor 10 , and will not be repeated here.
由于本发明能以单一导体层实现的电极来制造低成本、高分辨率的触控传感器，进一步地可以将本发明触控传感器整合在显示面板的工序中；当本发明触控显示面板完成后，内部就已经内建触控传感器的电极，可以直接实现触控屏幕的功能。请参考图9，其系以一剖面结构来示意本发明触控显示面板一实施例30A。触控显示面板30A可以是一液晶显示面板。在触控显示面板30A中，设有一覆镜层(coverlens)32、一胶合层34、一偏极片36、一胶合层38、一上玻璃基板(top glass)40、一导体层ITO1、一保护膜(overcoat)42、一滤色片44、另一导体层VCOM_ITO、显示单元结构46、导体层TFT_ITO、一下玻璃基板(bottom glass)48、一胶合层50及另一偏极片52。覆镜层32可以是玻璃或压克力塑料(聚甲基丙烯酸甲酯，即Polymethylmethacrylate，简称PMMA)；偏极片36用以使一第一极化方向的光线得以穿透，而偏极片52则用以使一第二极化方向的光线得以穿透。第一极化方向与第二极化方向可以是相同或相异的。胶合层34胶合覆镜层32与偏极片36，胶合层38则用以将偏极片36黏着于上玻璃基板40的一面；而在上玻璃基板40的另一面，即是用来实现本发明触控传感器的导体层ITO1，其可为一氧化铟锡(indiumtin oxide，ITO)透明导体层。Since the present invention can manufacture a low-cost, high-resolution touch sensor with electrodes realized by a single conductor layer, the touch sensor of the present invention can further be integrated in the process of the display panel; when the touch display panel of the present invention is completed , the electrodes of the touch sensor have been built inside, which can directly realize the function of the touch screen. Please refer to FIG. 9 , which illustrates an embodiment 30A of the touch display panel of the present invention with a cross-sectional structure. The touch display panel 30A can be a liquid crystal display panel. In the touch display panel 30A, a cover lens 32, a glue layer 34, a polarizer 36, a glue layer 38, an upper glass substrate (top glass) 40, a conductor layer ITO1, a Overcoat 42 , a color filter 44 , another conductive layer VCOM_ITO, a display unit structure 46 , a conductive layer TFT_ITO, a bottom glass 48 , an adhesive layer 50 and another polarizer 52 . The mirror layer 32 can be glass or acrylic plastic (polymethylmethacrylate, Polymethylmethacrylate, PMMA for short); the polarizer 36 is used to make the light of a first polarization direction penetrate, and the polarizer 52 is used to allow light in a second polarization direction to pass through. The first polarization direction and the second polarization direction may be the same or different. The adhesive layer 34 glues the mirror layer 32 and the polarizer 36, and the adhesive layer 38 is used to adhere the polarizer 36 to one side of the upper glass substrate 40; Invent the conductor layer ITO1 of the touch sensor, which can be an indium tin oxide (ITO) transparent conductor layer.
在导体层ITO1上，本发明可依据图2或图8的实施例来设置各电极U(k)、L(k)与D(k)，以实现本发明触控传感器10或20。除此的外，图9右侧也以平面图来示意本发明触控传感器又一实施例的电极。在图9的实施例中，导体层ITO1同样可定义出一个xy平面的感测区域SA，其内则设置多个形状相同的电极T(1)、T(2)至T(k)等等，以及多个形状相同的电极B(1)、B(2)至B(k)等等。各电极T(k)与B(k)间相互绝缘；各电极T(k)与电极B(k)皆沿y方向呈指状延伸，并沿x方向交错排列。为了提供y方向的分辨率，各电极T(k)的x方向截面尺寸(宽度)会沿y方向改变，各电极B(k)的x方向截面尺寸则沿y方向以相反趋势改变。譬如说，电极T(k)的x方向截面宽度可以是朝着+y方向由极小值线性递增至极大值；相对地，电极B(k)的x方向截面宽度则是沿+y方向由极大值线性递减至极小值。On the conductor layer ITO1 , the present invention can arrange the electrodes U(k), L(k) and D(k) according to the embodiment of FIG. 2 or FIG. 8 , so as to realize the touch sensor 10 or 20 of the present invention. In addition, the right side of FIG. 9 also shows the electrodes of another embodiment of the touch sensor of the present invention in a plan view. In the embodiment shown in FIG. 9, the conductive layer ITO1 can also define a sensing area SA on the xy plane, in which a plurality of electrodes T(1), T(2) to T(k) with the same shape are arranged, etc. , and a plurality of electrodes B(1), B(2) to B(k) of the same shape and so on. Each electrode T(k) and B(k) are insulated from each other; each electrode T(k) and electrode B(k) extend in a finger shape along the y direction, and are arranged in a staggered manner along the x direction. In order to provide resolution in the y direction, the x-sectional dimension (width) of each electrode T(k) changes along the y direction, and the x-sectional dimension of each electrode B(k) changes in the opposite direction along the y direction. For example, the cross-sectional width of the electrode T(k) in the x direction can increase linearly from the minimum value to the maximum value in the +y direction; in contrast, the cross-sectional width of the electrode B(k) in the x direction is along the +y direction from The maximum value decreases linearly to the minimum value.
类似图2与图8中的感测群组，图9中也可设有M*N个电极T(k)与M*N个电极B(k)，以划分为N个感测群组；在每一感测群组中有M个电极T(K)以导线相互连接以提供一对应的信号来反应这些电极T(k)所耦合的总电容变化量，亦有M个相互连接的电极B(k)以提供另一信号来反应其所耦合的总电容变化量。根据各感测群组提供的两个信号，实现于导体层ITO1的触控传感器即可决定触控位置的x坐标与y坐标。Similar to the sensing groups in FIG. 2 and FIG. 8 , M*N electrodes T(k) and M*N electrodes B(k) may also be provided in FIG. 9 to be divided into N sensing groups; In each sensing group, there are M electrodes T(K) connected to each other by wires to provide a corresponding signal to reflect the total capacitance change coupled by these electrodes T(k), and there are also M electrodes connected to each other B(k) provides another signal to reflect the total capacitance change it is coupled to. According to the two signals provided by each sensing group, the touch sensor implemented on the conductor layer ITO1 can determine the x-coordinate and y-coordinate of the touch position.
在导体层ITO1下的保护膜42可用以保护导体层ITO1，此保护膜42亦可另包括一隔离层(insulation layer，未图标)。滤色片44下的导体层VCOM_ITO用来传输/维持一共同电压。如图9的右侧所示，此导体层VCOM_ITO可以是延伸一整个平面的电极。导体层ITO1可以和导体层VCOM_ITO一样以相同的导体工序与材料制作，也就是说，导体层ITO1可以直接整合在显示面板的生产流程中。The protection film 42 under the conductor layer ITO1 can be used to protect the conductor layer ITO1, and the protection film 42 can also include an isolation layer (insulation layer, not shown). The conductive layer VCOM_ITO under the color filter 44 is used to transmit/maintain a common voltage. As shown on the right side of FIG. 9 , the conductor layer VCOM_ITO may be an electrode extending over an entire plane. The conductor layer ITO1 can be made with the same conductor process and material as the conductor layer VCOM_ITO, that is, the conductor layer ITO1 can be directly integrated into the production process of the display panel.
显示单元结构46中可以设有框胶(sealant)、间隔物(spacer)、液晶等，用以形成多个显示单元。导体层TFT_ITO上则设置多个矩阵排列的像素电极，各像素电极对应于一显示单元，可在薄膜晶体管(未示于图9)的控制下传输驱动电力(驱动电压)，以便和导体层VCOM_ITO的共同电压一起驱动显示面板的各个显示单元。而滤色片44则为不同的显示单元滤去不同的色光，以使不同显示单元能呈现多个不同的色彩；譬如说，某些显示单元为红色，某些显示单元为绿色。某些显示单元则为蓝色。胶合层50则将偏极片52黏着于下玻璃基板48的另一面。The display unit structure 46 may be provided with a sealant, a spacer, liquid crystal, etc. to form a plurality of display units. On the conductive layer TFT_ITO, a plurality of pixel electrodes arranged in a matrix are arranged, and each pixel electrode corresponds to a display unit, which can transmit driving power (driving voltage) under the control of a thin film transistor (not shown in FIG. 9 ) so as to communicate with the conductive layer VCOM_ITO The common voltage together drives each display unit of the display panel. The color filter 44 filters different colored lights for different display units, so that different display units can display multiple different colors; for example, some display units are red, and some display units are green. Some display units are blue. The adhesive layer 50 adheres the polarizer 52 to the other side of the lower glass substrate 48 .
图10以剖面结构来示意本发明触控显示面板另一实施例30B。触控显示面板30B中同样设有覆镜层32、胶合层34、偏极片36、胶合层38、导体层ITO1、上玻璃基板40、滤色片44、导体层VCOM_ITO、显示单元结构46、导体层TFT_ITO、下玻璃基板48、胶合层50及另一偏极片52。与图9实施例不同的是，图10触控显示面板30B中用来实现触控传感器的导体层ITO1与传输共同电压的导体层VCOM_ITO分别设于上玻璃基板40的相异两侧；胶合层38用来保护导体层ITO1并固着偏极片36。另外，如图10图右所示，不仅导体层ITO1设有多个相互绝缘的直条状电极，导体层VCOM_ITO也被细长的绝缘隙SLT划分为多个横条。在此实施例中，导体层VCOM_ITO不仅用来维持驱动显示单元的共同电压，也和导体层ITO1的电极一起实现双层电极的触控传感器，以两层导体层的纵横电极交织出触控传感器的触控位置分辨率。为了保持导体层VCOM_ITO传输共同电压的完整性，可将绝缘隙SLT的宽度维持在一适当值的内。FIG. 10 illustrates another embodiment 30B of the touch display panel of the present invention with a cross-sectional structure. The touch display panel 30B is also provided with a mirror layer 32, a glue layer 34, a polarizer 36, a glue layer 38, a conductor layer ITO1, an upper glass substrate 40, a color filter 44, a conductor layer VCOM_ITO, a display unit structure 46, The conductive layer TFT_ITO, the lower glass substrate 48 , the adhesive layer 50 and another polarizer 52 . The difference from the embodiment in FIG. 9 is that in the touch display panel 30B in FIG. 10 , the conductor layer ITO1 for realizing the touch sensor and the conductor layer VCOM_ITO for transmitting the common voltage are respectively arranged on different sides of the upper glass substrate 40; 38 is used to protect the conductor layer ITO1 and fix the polarizer 36. In addition, as shown on the right side of FIG. 10 , not only the conductor layer ITO1 is provided with a plurality of mutually insulated straight strip electrodes, but the conductor layer VCOM_ITO is also divided into multiple horizontal strips by the slender insulation gap SLT. In this embodiment, the conductive layer VCOM_ITO is not only used to maintain the common voltage for driving the display unit, but also realizes a touch sensor with double-layer electrodes together with the electrodes of the conductive layer ITO1. The vertical and horizontal electrodes of the two conductive layers are interwoven to form a touch sensor The touch position resolution of . In order to maintain the integrity of the common voltage transmitted by the conductor layer VCOM_ITO, the width of the insulation gap SLT can be maintained within an appropriate value.
请参考图11，其是以剖面结构来示意本发明触控显示面板另一实施例30C。触控显示面板30C类似于图9中的触控显示面板30A，但图11中的触控显示面板30C在保护膜42与滤色片44之间另增设一导体层ITO1’与一保护膜42’。导体层ITO1与ITO1’用来架构双导体层的触控传感器。如图11图右所示，导体层ITO1上设置了多个沿x轴延伸的长条电极，导体层ITO1’上则设有多个沿y轴延伸的长条电极。Please refer to FIG. 11 , which illustrates another embodiment 30C of the touch display panel of the present invention with a cross-sectional structure. The touch display panel 30C is similar to the touch display panel 30A in FIG. 9, but the touch display panel 30C in FIG. '. The conductor layers ITO1 and ITO1' are used to construct a touch sensor with two conductor layers. As shown on the right side of FIG. 11 , a plurality of strip electrodes extending along the x-axis are arranged on the conductor layer ITO1, and a plurality of strip electrodes extending along the y-axis are arranged on the conductor layer ITO1'.
请参考图12，其所示意的是本发明触控显示面板又一实施例30D。触控显示面板30D类似于图10中的触控显示面板30B，但在上玻璃基板40与滤色片44之间额外增设另一导体层ITO1’与保护膜42’。导体层ITO1与ITO1’用来架构双导体层的触控传感器。如图12图右所示，导体层ITO1上设置有多个沿y轴延伸的长条电极，导体层ITO1’上则设有多个沿x轴延伸的长条电极。在此实施例中，由于导体层ITO1’与ITO1即可实现触控传感器，故导体层VCOM_ITO就可维持为一平面延伸的电极，不需以绝缘隙划分出不同的电极。Please refer to FIG. 12 , which shows another embodiment 30D of the touch display panel of the present invention. The touch display panel 30D is similar to the touch display panel 30B in FIG. 10 , but another conductive layer ITO1' and a protective film 42' are added between the upper glass substrate 40 and the color filter 44. The conductor layers ITO1 and ITO1' are used to construct a touch sensor with two conductor layers. As shown on the right side of FIG. 12 , a plurality of long electrodes extending along the y-axis are arranged on the conductive layer ITO1, and a plurality of long electrodes extending along the x-axis are arranged on the conductive layer ITO1'. In this embodiment, since the conductive layers ITO1' and ITO1 can realize the touch sensor, the conductive layer VCOM_ITO can be maintained as an electrode extending in a plane, and different electrodes do not need to be divided by insulating gaps.
请参考图13，其所示意的是本发明触控显示面板再一实施例30E。触控显示面板30E的构造类似于图10中的触控显示面板30B，但在胶合层38与上玻璃基板40间的导体层ITO1则已省去；如图13图右所示，导体层VCOM_ITO是以各绝缘隙隔离出各电极T(1)至T(k)、B(1)至B(k)，来实现单一导体层的触控传感器。另外，此种架构也可用来实现本发明于图2与图8的实施例。Please refer to FIG. 13 , which shows another embodiment 30E of the touch display panel of the present invention. The structure of the touch display panel 30E is similar to that of the touch display panel 30B in FIG. 10 , but the conductive layer ITO1 between the adhesive layer 38 and the upper glass substrate 40 has been omitted; as shown on the right side of FIG. 13 , the conductive layer VCOM_ITO The electrodes T(1) to T(k), B(1) to B(k) are separated by insulating gaps to realize a touch sensor with a single conductor layer. In addition, this architecture can also be used to implement the embodiments of the present invention shown in FIG. 2 and FIG. 8 .
请参考图14，其所示意的是本发明触控显示面板另一实施例30F。触控显示面板30F类似于图9中的触控显示面板30A。不过，在触控显示面板30F中，传输共同电压的导体层VCOM_ITO被划分为相邻交错排列的各电极SR与SK，导体层ITO1则设置多个电极SG。在触控显示面板30F中，当要感测触控位置时，是依据电极SG与电极SK之间的互耦电容(mutual capacitance)来进行触控位置的定位。电极SK亦用以传输共同电压，电极SR维持于固定电压，可用来驱动像素并大幅减少背景电容。较佳地，在导体层VCOM_ITO上划分电极的绝缘隙可以隐藏在显示面板中不需透光的部份(例如用来形成黑色矩阵的部份)；也就是说，绝缘隙的位置和显示面板不透光部份的平面投影可以重合。在此实施例中，电极SG在导体层ITO1的图案(pattern)与电极SR在导体层VCOM_ITO的图案可说是相互重合；电极SG的菱形部份平面投影被涵盖在电极SR的菱形部份平面投影中。Please refer to FIG. 14 , which shows another embodiment 30F of the touch display panel of the present invention. The touch display panel 30F is similar to the touch display panel 30A in FIG. 9 . However, in the touch display panel 30F, the conductor layer VCOM_ITO transmitting the common voltage is divided into adjacent electrodes SR and SK arranged in a staggered manner, and the conductor layer ITO1 is provided with a plurality of electrodes SG. In the touch display panel 30F, when the touch position is to be sensed, the touch position is positioned according to the mutual capacitance between the electrode SG and the electrode SK. The electrode SK is also used to transmit a common voltage, and the electrode SR is maintained at a fixed voltage, which can be used to drive pixels and greatly reduce background capacitance. Preferably, the insulating gap that divides the electrodes on the conductive layer VCOM_ITO can be hidden in the part of the display panel that does not need light transmission (such as the part used to form the black matrix); that is, the position of the insulating gap and the display panel The plane projections of the opaque parts can be overlapped. In this embodiment, the pattern of the electrode SG on the conductor layer ITO1 and the pattern of the electrode SR on the conductor layer VCOM_ITO can be said to coincide with each other; the projection of the rhombus part of the electrode SG is covered by the rhombus part of the plane of the electrode SR Projecting.
请参考图15；图15示意的是制造本发明触控显示面板的流程1500。流程1500的主要步骤可简述如下：Please refer to FIG. 15 ; FIG. 15 schematically shows a process 1500 of manufacturing the touch display panel of the present invention. The main steps of the process 1500 can be briefly described as follows:
步骤1502：在上玻璃基板40上以一导体工序形成导体层ITO1，并在此导体层ITO1上制作出各个电极，作为本发明触控传感器的基础。另外，亦可形成保护膜42来保护导体层ITO1上的电极。若有需要(如图11与图12的实施例)，可继续依循前述的导体工序形成另一导体层ITO1’并设置电极，并形成相关的保护膜42’。在此步骤中，就可将触控传感器的电极内建于显示面板中了。另外，若要实现图13中的实施例，则可省略导体层ITO1的相关导体工序。Step 1502: Form a conductive layer ITO1 on the upper glass substrate 40 by a conductive process, and fabricate various electrodes on the conductive layer ITO1 as the basis of the touch sensor of the present invention. In addition, a protective film 42 may be formed to protect the electrodes on the conductive layer ITO1. If necessary (as shown in the embodiment of Figure 11 and Figure 12), another conductor layer ITO1' can be formed and electrodes are formed according to the above-mentioned conductor process, and a related protective film 42' can be formed. In this step, the electrodes of the touch sensor can be built into the display panel. In addition, if the embodiment shown in FIG. 13 is to be realized, the related conductor process of the conductor layer ITO1 can be omitted.
步骤1504：形成滤色片44。Step 1504 : Form the color filter 44 .
步骤1506：以前述的导体工序形成共同电压导体层VCOM_ITO。若要实现图10、图13与图14的实施例，则可进一步在导体层VCOM_ITO内分隔出各电极。Step 1506: Form a common voltage conductor layer VCOM_ITO by the aforementioned conductor process. To realize the embodiments of FIG. 10 , FIG. 13 and FIG. 14 , the electrodes can be further separated in the conductor layer VCOM_ITO.
步骤1508：形成显示单元结构46中的部份结构，像是配向膜/配向工序(rubbing)、框胶的涂布等等。Step 1508 : Form some structures in the display unit structure 46 , such as alignment film/rubbing, coating of sealant, and so on.
步骤1510：在下玻璃基板48上形成控制显示单元的薄膜晶体管。Step 1510 : Form thin film transistors for controlling the display unit on the lower glass substrate 48 .
步骤1512：以前述的导体工序形成导体层TFT_ITO，并为各个显示单元划分出像素电极。Step 1512: Form the conductive layer TFT_ITO by the aforementioned conductive process, and divide the pixel electrodes for each display unit.
步骤1514：形成显示单元结构46中的部份结构，像是配向膜/配向工序与银胶、间隔物的涂布等。Step 1514: Form part of the structure in the display unit structure 46, such as alignment film/alignment process and coating of silver glue and spacers, etc.
步骤1516：组合步骤1508与1514的完成品，注入液晶，并进行面板切割等相关工序。Step 1516: Combine the finished products of steps 1508 and 1514, inject liquid crystals, and perform related processes such as panel cutting.
步骤1518：贴附偏极片36与52，以完成显示面板的制作。Step 1518: Paste the polarizers 36 and 52 to complete the fabrication of the display panel.
总结来说，相较于现有技术，本发明的触控传感器可用单一导体层或双导体层实现，并在有限的脚位数下改善信号品质与触控位置的感测分辨率。本发明触控传感器可以低成本地整合在显示面板的工序中，以显示面板既有的导体层工序即可将触控传感器内建在显示面板内。In summary, compared with the prior art, the touch sensor of the present invention can be implemented with a single conductor layer or double conductor layers, and improves the signal quality and the sensing resolution of the touch position with a limited number of pins. The touch sensor of the present invention can be integrated in the process of the display panel at low cost, and the touch sensor can be built in the display panel by using the existing conductor layer process of the display panel.
综上所述，虽然本发明已以较佳实施例揭露如上，而然其并非用以限定本发明，任何熟悉此技术者，在不脱离本发明的精神和范围内，当可作各种等同的改变或替换，因此本发明的保护范围当视后附的本申请权利要求范围所界定的为准。In summary, although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person familiar with the art may make various equivalents without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be defined by the appended claims of the application.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010118530.8ACN102147687B (en) | 2010-02-08 | 2010-02-08 | Touch sensor and related method thereof |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010118530.8ACN102147687B (en) | 2010-02-08 | 2010-02-08 | Touch sensor and related method thereof |
| Publication Number | Publication Date |
|---|---|
| CN102147687A CN102147687A (en) | 2011-08-10 |
| CN102147687Btrue CN102147687B (en) | 2014-07-16 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010118530.8AActiveCN102147687B (en) | 2010-02-08 | 2010-02-08 | Touch sensor and related method thereof |
| Country | Link |
|---|---|
| CN (1) | CN102147687B (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103577006B (en)* | 2012-08-07 | 2016-09-28 | 晨星软件研发(深圳)有限公司 | self-capacitance type touch panel |
| CN104978087B (en)* | 2014-04-08 | 2018-06-29 | 晨星半导体股份有限公司 | Touch system and coordinate correction method thereof |
| CN104978088B (en)* | 2014-04-09 | 2018-04-17 | 晨星半导体股份有限公司 | Correcting device and correcting method matched with self-contained touch panel |
| CN106648269B (en)* | 2016-11-28 | 2024-06-28 | 北京集创北方科技股份有限公司 | Touch sensing device and detection method |
| WO2021081716A1 (en)* | 2019-10-28 | 2021-05-06 | 深圳市汇顶科技股份有限公司 | Touch sensor pattern, touch sensor, touch device and electronic terminal |
| CN116424074A (en)* | 2023-03-09 | 2023-07-14 | 福耀科技发展(苏州)有限公司 | Glass components and vehicles |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000298546A (en)* | 1999-02-09 | 2000-10-24 | Seiko Instruments Inc | Touch panel coordinates correction method |
| CN101561732A (en)* | 2008-04-18 | 2009-10-21 | 义隆电子股份有限公司 | Capacitive touch pad for realizing two-dimensional application by single-layer sensor and positioning method thereof |
| CN101887334A (en)* | 2009-05-15 | 2010-11-17 | 晨星软件研发(深圳)有限公司 | Sensing structure and sensing method of capacitive touch panel |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000298546A (en)* | 1999-02-09 | 2000-10-24 | Seiko Instruments Inc | Touch panel coordinates correction method |
| CN101561732A (en)* | 2008-04-18 | 2009-10-21 | 义隆电子股份有限公司 | Capacitive touch pad for realizing two-dimensional application by single-layer sensor and positioning method thereof |
| CN101887334A (en)* | 2009-05-15 | 2010-11-17 | 晨星软件研发(深圳)有限公司 | Sensing structure and sensing method of capacitive touch panel |
| Publication number | Publication date |
|---|---|
| CN102147687A (en) | 2011-08-10 |
| Publication | Publication Date | Title |
|---|---|---|
| TWI461785B (en) | Display panel integrated with touch sensing device and associated method | |
| US11853521B2 (en) | Overhang electrode portions for input device, display device, and electronic device | |
| TWI408451B (en) | Touch display panel | |
| JP6165270B2 (en) | Position input device and display device | |
| US9164306B2 (en) | In-cell touch display panel system using metal wires to connect with sensing electrodes | |
| JP5530515B2 (en) | Liquid crystal panel, liquid crystal display device | |
| CN104216578A (en) | Touch panel and display device | |
| JP2012208460A (en) | Liquid crystal display device with built-in touch sensor and manufacturing method thereof | |
| US10209841B2 (en) | Position inputting device and display device with position inputting function | |
| CN102147687B (en) | Touch sensor and related method thereof | |
| US9207483B2 (en) | In-cell touch display panel structure with metal layer on lower substrate for sensing | |
| CN102147540B (en) | Touch display panel and correlation method | |
| TWM481449U (en) | High precision embedded flat display touch structure | |
| TWI410850B (en) | Touch sensing device and associated method | |
| KR102040654B1 (en) | Touch sensor integrated type display device and method of fabricating the same | |
| TWM482114U (en) | High accuracy of the narrow border embedded flat display touch structure | |
| TWM480722U (en) | High-accuracy in-cell flat display touch structure of narrow border | |
| CN105988240B (en) | Color filter manufacturing method, color filter and liquid crystal display device | |
| CN104749675B (en) | Optical filter and preparation method thereof, touch LCD display and preparation method thereof | |
| WO2017138325A1 (en) | Display panel with touch sensor |
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | Effective date of registration:20190124 Address after:Taiwan Hsinchu County China jhubei City, Taiwan two yuan Street No. 1 10 floor 1 Patentee after:ILI TECHNOLOGY Corp. Address before:518057 4th Floor, Building C, Shenzhen Institute of Space Science and Technology Innovation, South Science and Technology 10 Road, Shenzhen High-tech Zone, Shenzhen, Guangdong Province Co-patentee before:MStar Semiconductor Co., Ltd. Patentee before:MStar Software Development (Shenzhen) Co., Ltd. | |
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right | Effective date of registration:20210202 Address after:Grand Cayman Islands Patentee after:Yili Technology (Cayman) Co.,Ltd. Address before:1, 10th floor, No.1, Taiyuan 2nd Street, Zhubei City, Xinzhu County, Taiwan, China Patentee before:ILI TECHNOLOGY Corp. | |
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right | Effective date of registration:20220427 Address after:Hsinchu County, Taiwan, China Patentee after:ILI TECHNOLOGY Corp. Address before:Grand Cayman, Cayman Islands Patentee before:Yili Technology (Cayman) Co.,Ltd. | |
| TR01 | Transfer of patent right |