CN1928800A - Touch control plate sensor - Google Patents

Touch control plate sensor Download PDF

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Publication number
CN1928800A
CN1928800A CN 200510098764 CN200510098764A CN1928800A CN 1928800 A CN1928800 A CN 1928800A CN 200510098764 CN200510098764 CN 200510098764 CN 200510098764 A CN200510098764 A CN 200510098764A CN 1928800 A CN1928800 A CN 1928800A
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area
layer
stitch
touch sensor
traces
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CN 200510098764
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Chinese (zh)
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CN100412778C (en
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李文凯
李佳益
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义隆电子股份有限公司
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Abstract

The touch pad sensor comprises multiple traces on same of different sensing layers, and lets traces with equal capacitor by compensation area or adjusting distance between trace and grounding layer.

Description

触控板感应器 The touch sensor panel

技术领域 FIELD

本发明有关一种触控板感应器,特别是关于一种利用补偿面积连接线迹(trace)或调整不同的线迹到接地层的距离使不同的线迹具有相等的基本电容的触控板感应器。 The present invention relates to a touch sensor panel, particularly, to a connection area with the compensation trace (the trace) or adjust various trace distance to the ground layers so that different stitches having substantially equal capacitance touchpad sensor.

背景技术 Background technique

触控板由于体积小、成本低、消耗功率低及使用寿命长,因此被广泛地应用在各类电子产品上,例如笔记型电脑、滑鼠、MP3播放机,甚至于手机等等,作为输入装置,使用者仅需以物件(例如手指或触控笔之类的导电性物件)在面板上滑动或接触,使游标产生相对移动或绝对座标移动,即可完成包括文字书写、滚动视窗及虚拟按键等各种输入。 Touchpad because of the small size, low cost, low power consumption and long service life, which is widely used in various electronic products, such as notebook computers, mouse, MP3 players, and even cell phones, as input apparatus, the user need only to objects (e.g., finger or stylus or the like conductive object) slidably contacting on the panel or the cursor relative movement or absolute coordinate movement, to complete the writing on comprising, scrolling windows, and virtual buttons and other inputs. 现有的触控板感应器大多为对称型结构,例如图1所示的方形结构,其线迹具有相同的形状及面积,因此线迹的基本电容在触控板感应器上的分布是对称的,物件在触控板感应器上造成感应量也是对称且线性相等的,如图2所示。 Conventional touch sensor panel mostly symmetric structure, such as a square configuration shown in FIG. 1, which traces have the same shape and area, thus substantially distributed capacitance traces on the touch sensor panel are symmetrical , the resulting sensing object is symmetrical and equal amount of linear, 2 on the touchpad sensor. 然而,随着应用不同,触控板感应器的形状及结构亦随之不同,产生了非对称型触控板感应器,非对称型触控板感应器是指包括感应器的外型、感应器每一层的厚度、线迹的面积及其与接地层的距离等至少其一为非对称者。 However, with the different applications, the shape and structure of the touch sensor panel will also differ, produces asymmetric touchpad sensor, asymmetric touchpad sensor means comprises a sensor of the shape, induction is the thickness of each layer, the area and the stitch of the ground layer distance by at least one asymmetric. 线迹的基本电容正比于线迹的面积与线迹与接地层距离的比C=ε*(A/d) 公式1其中,C表示基本电容,ε表示介电系数,A代表线迹的面积大小,d代表线迹与接地层的距离。 Ratio C stitches substantially capacitor is proportional to the stitch area of ​​the trace and the ground plane distance = ε * (A / d) Equation 1 wherein, C represents the basic capacitance, [epsilon] represents the dielectric constant, the area A represents stitches size, d for the distance to the ground trace layer. 而物件在触控板感应器上造成的感应量S正比于(ΔC/C) 公式2 The object is caused on the touch panel sensor senses the amount of S is proportional to (ΔC / C) Formula 2

其中,ΔC为物件在感应器上造成的电容变化量。 Wherein, ΔC is the change in capacitance caused by the object on the sensor. 因此,线迹的面积及线迹与接地层的距离均会影响其基本电容的大小。 Thus, the area of ​​stitches and stitch from the ground layer will substantially affect its capacitance size. 以图3所示的圆形结构为例,感应器100的线迹X0至X6的长度不相同,使得线迹X0至X6的面积不相等,同样地,线迹Y0至Y6的面积亦不相等。 A circular structure shown in FIG. 3 as an example, the length of the line 100 traces X0 to X6 sensors are not identical, such that traces X0 to X6 unequal areas, similarly, the stitches Y0 to Y6 nor equal area . 由公式1可知,当该等线迹与接地层的距离相等时,面积愈大,其基本电容愈大,导致线迹的基本电容在感应器100上的分布为非对称的。 It is seen from Equation 1, when the distance is equal to those of the trace and the ground plane, the greater the area, which is substantially larger capacitance, resulting in substantially distributed capacitance of traces 100 on the sensor asymmetrical. 由公式2可知,当物件在感应器100上操作时,由于各线迹的基本电容不同,因此在不同位置产生的感应量不同,如图4所示,此种感应量不对称且不线性相等的现象导致物件操作时产生动作误判或计算物件位置时造成偏移量。 Seen from Equation 2, when the operation object on the sensor 100, due to the difference of each stitch is substantially capacitive, inductive and therefore different amounts produced at different locations, as shown in FIG. 4, the amount of such asymmetrical induction does not equal linear the phenomenon leads to false operation caused when an object or the operation object position offset calculation.

因此,一种使不同线迹具有相同基本电容的触控板感应器,乃为所冀。 Thus, one has the same so that different basic stitch plate capacitive touch sensor, is of the wing.

发明内容 SUMMARY

本发明的主要目的,在于提供一种使不同线迹具有相同基本电容的触控板感应器。 The main object of the present invention is to provide an substantially different stitches having the same capacitance touch sensor panel.

根据本发明,一种触控板感应器包括一具有第一面积的第一线迹,一具有第二面积的第二线迹,以及一补偿面积连接该第二线迹,使得该第一及第二线迹具有相等的基本电容。 According to the present invention, a touch sensor comprises a plate having a first area of ​​the first stitch, having a second area of ​​the second stitch, and a second compensating area connected to the traces, so that the first and second line tracks having substantially equal capacitance.

根据本发明,一种触控板感应器包括一具有第一面积的第一线迹,一具有第二面积的第二线迹,以及一第一及第二补偿面积分别连接该第一及第二线迹,使得该第一及第二线迹具有相等的基本电容。 According to the present invention, a touch sensor comprises a plate having a first area of ​​the first stitch, having a second area of ​​the second stitch, and a first and a second compensation area is connected to the first and second lines, respectively, trace, such that the first and second traces having a substantially equal capacitance.

根据本发明,一种触控板感应器包括一第一线迹位于第一感应层,以及一第二线迹位于第二感应层,利用该第一及第二线迹的面积或与接地层的距离差异使其具有相等的基本电容。 According to the present invention, a touch panel includes a first inductor traces on the first sensing layer, and a second stitch in the second sensing layer, and by the distance of the first area or the second stitch and the ground layer so as to have a capacitance difference substantially equal.

本发明利用补偿面积或调整接地层的距离使同层或不同层的线迹具有相同的基本电容,因此可以避免触控板感应器在物件操作时产生动作误判或计算物件位置时造成偏移量。 When using the present invention causes the offset compensation or adjustment of the area that the ground plane from the same layer or different layers of stitches having substantially the same capacitance, the touch panel can be avoided sensor generates an operation mistake or calculated positions of objects when the object performs the amount.

附图说明 BRIEF DESCRIPTION

图1显示一方形触控板感应器的示意图;图2显示物件在方形触控板感应器上造成的感应量;图3显示一圆形触控板感应器的示意图;图4显示物件在圆形触控板感应器上造成的感应量;图5为本发明第一实施例的示意图;图6为本发明第二实施例的示意图;图7为图6的触控板感应器的剖面结构第一实施例的示意图;图8为图6的触控板感应器的剖面结构第二实施例的示意图;以及图9为图6的触控板感应器的剖面结构第三实施例的示意图。 1 shows a schematic view of a rectangular pad inductor; FIG. 2 shows the amount of induction caused by an object on the touchpad sensor square; circular touch panel 3 displays a schematic view of the sensor; FIG. 4 shows the round object sensing the amount of the resulting plate-shaped touch sensor; cross-sectional structure of the touch sensor panel of FIG. 6 FIG. 7; FIG. 5 is a schematic diagram of the first embodiment of the present invention; FIG. 6 is a schematic view of a second embodiment of the present invention a schematic cross-sectional structure of the second embodiment of FIG 6 FIG 8 is a touch panel inductor;; a schematic view of a first embodiment and FIG. 9 is a schematic cross-sectional structure of the touch panel sensor of FIG 6 a third embodiment.

元件符号100 圆形触控板感应器 200 补偿结构210 元件层 220 补偿面积300 圆形触控板感应器 310 线迹320 线迹 400 触控板感应器的剖面结构410 感应层 420 感应层430 接地层 500 触控板感应器的剖面结构510 感应层 520 感应层530 接地层 600 触控板感应器的剖面结构610 感应层 620 感应层具体实施方式图5为本发明的一个实施例的示意图,显示如图3所示的圆形触控板感应器100的补偿结构200。 Compensating element layer structure 210 200 220 300 Area Compensation circular touchpad sensor 310 element symbol line 100 traces a circular touchpad sensor 320 traces the touch panel 400 of the cross-sectional structure of sensor 410 sensing layer 420 is grounded sensing layer 430 schematic diagram of one embodiment of a sectional structure of sectional structure of the sensing layer 610 sensing layer 520 sensor layer 510 ground layer 600 touch panel 530 sensor layer 500 of the touch panel sensor 620 sensing layer DETAILED DESCRIPTION Figure 5 of the present invention showing FIG compensation structure circular touchpad sensor 100, 200 in FIG. 3. 参照图5及图3,触控板感应器100具有方向彼此正交的线迹X0至X6及Y0至Y6,补偿面积220位于触控板的元件层210上,补偿面积220为导体且与要补偿的线迹连接,以调整该线迹的基本电容。 Referring to FIG. 5 and FIG. 3, the touch sensor panel 100 having a direction orthogonal to each other traces X0 to X6 and Y0 to Y6, the area of ​​the compensation element layer 220 positioned on the touch panel 210, the conductor 220 and the compensation area to be compensation stitch connection, to adjust the basic capacitance of the traces. 补偿面积220的大小根据要补偿的电容差值大小决定。 The size of the compensation area 220 determines the size of the capacitance to be compensated according to the difference. 例如,以触控板感应器100中二条不同线迹之间相差的面积,配合与接地层的距离,利用公式1计算产生,例如线迹X0相对于线迹X3需补偿的面积为A0与接地层的距离为d1,元件层210与接地层的距离为d2,面积A0产生的基本电为ε*(A0/d1),补偿面积220产生的基本电容为ε*(补偿面积220/d2),二者产生的基本电容相等,即ε*(A0/d1)=ε*(补偿面积220/d2),则位于元件层210的补偿面积220=(d2/d1)A0,补偿面积220与线迹X0连接后,即使得线迹X0与X3具有的基本电容相等。 For example, the phase difference between two different trace 100 in sensor area of ​​the touch panel, and the distance with the ground layer, using the formula 1 calculated to produce, for example, traces X0 relative to the area of ​​stitches X3 need to compensate for the ground A0 distance layer is d1, the distance element layer 210 and ground layer is d2, substantially electrically area A0 generated as ε * (A0 / d1), the basic capacitance compensation area 220 generated as ε * (compensation area 220 / d2), both substantially equal to the capacitance generated, i.e., ε * (A0 / d1) = ε * (area compensation 220 / D2), of the compensation element layer 210 is located in the area of ​​220 = (d2 / d1) A0, and the compensation area 220 stitches after connecting X0, X0 equal even have to trace and X3 have the basic capacitance. 以相同的方式计算其他线迹(例如X1至X6及Y0至Y6)在元件层210上需要的补偿面积并一一连接后,各线迹即具有相等的基本电容,进而使物件在触控板感应器100上造成的感应量对称且线性相等。 After calculating the other traces in the same manner (e.g., X1 to X6 and Y0 to Y6) and 11 require compensation area is connected to the element layer 210, i.e., each stitch having substantially equal capacitance, thereby enabling the item touchpad sensing the amount of the inductor 100 causes equal and linearly symmetric. 在另一实施例中,为使触控板感应器100中每一线迹具有相等的基本电容,选择一基本电容的目标值,根据公式1计算每一线迹需要的补偿面积并分别连接至对应的线迹,将所有线迹的基本电容皆调整为该目标值。 In another embodiment, for the touch panel sensor 100 in each trace having substantially equal capacitance, select a basic target value of capacitance, Equation 1 is calculated according to the compensation area required for each trace and connected to the corresponding stitch, stitch all the basic capacitance are adjusted to the target value. 在不同的实施例中,补偿面积与被补偿的线迹位于同一感应层。 In various embodiments, the compensation area to be compensated in the same stitch sensing layer. 在另外的实施例中,某些线迹的补偿面积与另外一些线迹的补偿面积在不同层上。 In a further embodiment, some of the traces and the compensation area to compensate for some other area traces on different layers.

图6为本发明的另一个实施例的示意图,一圆形触控板感应器300包括多条线迹310在第一感应层上及多条线迹320在第二感应层上,线迹310及320的方向彼此正交,利用面积和接地层的距离使不同感应层上的线迹310及320具有相等的基本电容。 6 a schematic view of another embodiment of the present invention embodiment, a circular touch sensor panel 300 includes a plurality of traces on the first sensing layer 310 and a plurality of traces on the second sensing layer 320, traces 310 and a direction 320 orthogonal to each other, and the ground layer by using the area of ​​the line on the distance between the different sensing layer traces 310 and 320 having substantially equal capacitance. 在一实施例中,线迹310的面积为A1与接地层的距离为d1,线迹320的面积为A2与接地层的距离为d2,根据公式1,线迹310的基本电容为ε*(A1/d1),线迹320的基本电容为ε*(A2/d2),二者的基本电容相等,即ε*(A1/d1)=ε*(A2/d2),得到线迹310及320的面积与接地层距离的关系为A1/A2=d1/d2,因此,当线迹310及320与接地层的距离不相等时,距离接地层较近的线迹的面积较小。 In one embodiment, the stitch area 310 is the distance A1 and the ground layer is d1, the stitch area 320 is the distance A2 and the ground layer is d2, according to Equation 1, the basic capacitance of traces 310 is ε * ( A1 / d1), trace capacitance 320 is substantially ε * (A2 / d2), substantially equal to the capacitance of the two, i.e., ε * (A1 / d1) = ε * (A2 / d2), to give 310 and 320 stitches relationship between the area of ​​the ground plane distance of A1 / A2 = d1 / d2, and therefore, when the distance stitches 310 and 320 and the ground layer are not equal, the smaller the area of ​​the traces from near ground layer. 接地层可以介于或不介于第一及第二感应层之间。 A ground layer may be interposed or not between the first and the second sensing layer. 如图7所示的实施例,在剖面结构400中,接地层430介于感应层410及420之间,线迹310在感应层410上,线迹320在感应层420上,接地层430与感应层410之间的距离为d1,接地层430与感应层420之间的距离为d2。 Embodiment illustrated in FIG. 7, in the cross-sectional structure 400, a ground layer 430 is interposed between the sensing layer 410 and 420, trace 310 on the sensor layer 410, trace 320 on the sensor layer 420, and ground layer 430 the distance between the sensing layer 410 is d1, the distance between the ground layer 430 and the sensing layer 420 is d2. 在一实施例中,线迹310及320的面积相等,且距离d1及d2相等,因此线迹310及320的基本电容相等。 In one embodiment, the stitches 310 and 320 have equal areas and equal distances d1 and d2, so stitches substantially equal to the capacitance 310 and 320, respectively. 在另一实施例中,线迹310及320的面积不相等,且距离d1及d2不相等,使得线迹310及320的基本电容相等。 In another embodiment, the traces 310 and 320 are not equal areas, and distances d1 and d2 are not equal, so that the stitches substantially equal to the capacitance 310 and 320, respectively. 如图8所示的实施例,在剖面结构500中,接地层530不介于感应层510及520之间,线迹310在感应层510上,线迹320在感应层520上,接地层530与感应层510之间的距离d1大于接地层530与感应层520之间的距离为d2,线迹310的面积大于线迹320的面积,使得线迹310及320的基本电容相等。 Example 8 FIG embodiment illustrated in the cross-sectional structure 500, 530 is not interposed between the ground layer 510 and the sensing layer 520, trace 310 on the sensor layer 510, trace 320 on the sensor layer 520, a ground layer 530 and the distance between the distance d1 between the sensing layer 510 is greater than the ground layer 530 and the sensing layer 520 is d2, trace 310 is larger than the area of ​​the traces 320, so that the stitches substantially capacitor 310 and 320 are equal. 在其他的实施例中,如图9的剖面结构600所示,触控板感应器300没有接地层,线迹310在感应层610上,线迹320在感应层620上,因此,在线迹310及320形成的电容结构中,接地层可视为无穷远。 In other embodiments, the cross-sectional configuration 600 shown in Figure 9, the touch panel sensor 300 is not a ground layer, trace 310 on the sensor layer 610, trace 320 on the sensor layer 620, therefore, the stitch 310 and the capacitor structure 320 is formed in the ground layer can be regarded as infinity.

在不同的实施例中,触控板感应器的结构由以上各实施例所描述的结构搭配组合,使同层与不同层间的线迹具有对称且线性相等的基本电容,进而使物件在该触控板感应器上造成的感应量对称且线性相等。 In various embodiments, the structure of the touch sensor panel by each of the above embodiments in combination with a structure described embodiment, the wire layer and between the different layers with symmetrical and linear tracks having substantially equal capacitance, and thus make the item sensing the amount of the touch panel caused by the inductor and linearly symmetrically equal.

Claims (20)

1.一种触控板感应器,其特征在于,包括:一第一线迹,具有第一面积;一第二线迹,具有第二面积;以及一补偿面积,连接该第二线迹,使得该第一及第二线迹具有相等的基本电容。 1. A touch sensor panel, characterized by comprising: a first wire trace having a first area; a second stitch, having a second area; and a compensation area, connected to the second stitch, so that the the first and second traces having a substantially equal capacitance.
2.如权利要求1所述的触控板感应器,其特征在于,该补偿面积位于元件层。 The touchpad sensor as claimed in claim 1, characterized in that the compensation element layer is located in the area.
3.如权利要求1所述的触控板感应器,其特征在于,该补偿面积及该第二线迹位于同一感应层。 The touch sensor panel according to claim 1, wherein the compensation area and the second sensing layer in the same stitch.
4.如权利要求1所述的触控板感应器,其特征在于,该第一及第二线迹位于同一感应层。 The touchpad sensor as claimed in claim 1, wherein the first and second traces on the same sensing layer.
5.如权利要求1所述的触控板感应器,其特征在于,该第一及第二线迹位于不同感应层。 The touch sensor panel according to claim 1, wherein the first and second traces on different sensing layer.
6.如权利要求1所述的触控板感应器,其特征在于,该第一与第二线迹的方向彼此正交。 The touchpad sensor as claimed in claim 1, wherein the first direction and orthogonal to each other of the second traces.
7.一种触控板感应器,其特征在于,包括:一第一线迹,具有第一面积;一第二线迹,具有第二面积;以及一第一补偿面积及一第二补偿面积,分别连接该第一及第二线迹,使得该第一及第二线迹具有相等的基本电容。 A touch sensor panel, characterized by comprising: a first wire trace having a first area; a second stitch, having a second area; and a first and a second compensating area compensation area, are respectively connected to the first and second stitch, such that the first and second traces having a substantially equal capacitance.
8.如权利要求7所述的触控板感应器,其特征在于,该第一及第二补偿面积至少有一位于元件层。 The touchpad sensor as claimed in claim 7, wherein the first and second area has at least one compensation element layer is located.
9.如权利要求7所述的触控板感应器,其特征在于,该第一补偿面积及该第一线迹位于同一感应层。 9. The touch sensor panel according to claim 7, wherein the first compensation and the area of ​​the first stitch in the same sensing layer.
10.如权利要求7所述的触控板感应器,其特征在于,该第一及第二线迹位于同一感应层。 10. The touch sensor panel according to claim 7, wherein the first and second traces on the same sensing layer.
11.如权利要求7所述的触控板感应器,其特征在于,该第一及第二线迹位于不同感应层。 The touch sensor panel according to claim 7, wherein the first and second traces on different sensing layer.
12.如权利要求7所述的触控板感应器,其特征在于,该第一及第二线迹的方向彼此正交。 12. The touch sensor panel according to claim 7, wherein the first and second directions orthogonal to each other stitch.
13.一种触控板感应器,其特征在于,包括:一第一线迹,位于第一感应层;以及一第二线迹,位于第二感应层;其中,该第一及第二线迹具有相等的基本电容。 13. A touch sensor panel, characterized by comprising: a first stitch, located between the first sensing layer; and a second trace, in the second sensing layer; wherein the first and second stitch having substantially equal capacitance.
14.如权利要求13所述的触控板感应器,其特征在于,该第一及第二线迹的方向彼此正交。 14. The touch sensor panel according to claim 13, wherein the first and second directions orthogonal to each other stitch.
15.如权利要求13所述的触控板感应器,其特征在于,该第一及第二线迹具有不同大小的面积。 15. The touch sensor panel according to claim 13, wherein the first and second areas having a different stitch size.
16.如权利要求15所述的触控板感应器,其特征在于,更包括一接地层与该第一及第二线迹分别相距第一及第二距离,该第一距离不等于该第二距离。 16. The touch sensor panel according to claim 15, characterized in that, further comprising a ground layer and the first and second respectively, at least a first stitch and a second distance, the first distance is not equal to the second distance.
17.如权利要求16所述的触控板感应器,其特征在于,该接地层介于该第一及第二感应层之间。 17. The touch sensor panel according to claim 16, wherein the ground layer is interposed between the first and the second sensing layer.
18.如权利要求16所述的触控板感应器,其特征在于,该接地层不介于该第一及第二感应层之间。 18. The touch sensor panel according to claim 16, wherein the ground layer is not interposed between the first and the second sensing layer.
19.如权利要求15所述的触控板感应器,其特征在于,更包括一接地层介于该第一及第二感应层之间,与该第一及第二感应层等距。 19. The touch sensor panel according to claim 15, characterized in that, further comprising a ground layer is interposed between the first and the second sensing layer, equidistant from the first and second sensing layer.
20.如权利要求13所述的触控板感应器,其特征在于,更包括一接地层介于该第一及第二感应层之间,与该第一及第二感应层等距,且该第一及第二线迹具有相同大小的面积。 20. The touch sensor panel according to claim 13, characterized in that, further comprising a ground layer is interposed between the first and the second sensing layer, and the first and second sensing layer equidistant, and the first and second traces having the same area size.
CN 200510098764 2005-09-07 2005-09-07 Touch control plate sensor CN100412778C (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100489755C (en) 2007-10-11 2009-05-20 友达光电股份有限公司 Low impedance structure condenser type touch control panel and its production method
CN102566823A (en) * 2012-01-17 2012-07-11 苏州瀚瑞微电子有限公司 Touch input equipment
US9658726B2 (en) 2014-07-10 2017-05-23 Cypress Semiconductor Corporation Single layer sensor pattern

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US4777328A (en) 1987-05-13 1988-10-11 Elographics, Inc. Circular electrographic touch sensor with orthogonal fields and linear response
US5225959A (en) 1991-10-15 1993-07-06 Xerox Corporation Capacitive tactile sensor array and method for sensing pressure with the array
US6222528B1 (en) 1997-03-07 2001-04-24 Cirque Corporation Method and apparatus for data input

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100489755C (en) 2007-10-11 2009-05-20 友达光电股份有限公司 Low impedance structure condenser type touch control panel and its production method
CN102566823A (en) * 2012-01-17 2012-07-11 苏州瀚瑞微电子有限公司 Touch input equipment
CN102566823B (en) 2012-01-17 2014-10-22 苏州瀚瑞微电子有限公司 A touch input device
US9658726B2 (en) 2014-07-10 2017-05-23 Cypress Semiconductor Corporation Single layer sensor pattern

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