WO2020006808A1 - 一种触摸传感器 - Google Patents

一种触摸传感器 Download PDF

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Publication number
WO2020006808A1
WO2020006808A1 PCT/CN2018/099506 CN2018099506W WO2020006808A1 WO 2020006808 A1 WO2020006808 A1 WO 2020006808A1 CN 2018099506 W CN2018099506 W CN 2018099506W WO 2020006808 A1 WO2020006808 A1 WO 2020006808A1
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Prior art keywords
sub
sensing electrode
induction
touch sensor
sensing
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PCT/CN2018/099506
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English (en)
French (fr)
Inventor
叶剑
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Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Application filed by Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority to US16/099,205 priority Critical patent/US10754487B2/en
Publication of WO2020006808A1 publication Critical patent/WO2020006808A1/zh
Anticipated expiration legal-status Critical
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices

Definitions

  • the invention relates to the technical field of touch display screens, in particular to a touch sensor.
  • Flexible AMOLED has good bending and flexibility, so the touch sensor required to match it also needs to have good flexibility characteristics.
  • Traditional touch sensors whether they are plug-in or integrated on the display, such as Oncell / Incell, are usually made of transparent conductive film (ITO), and ITO is a brittle semiconductor material. It is easy to cause the problem of fracture, so there is a risk of dysfunction.
  • Conventional touch electrode patterns whether they are mutual-capacitive touch sensors or self-capacitance touch sensors, the edges of the electrode patterns are prone to breakage due to stress concentration.
  • the invention provides a touch sensor, which does not need a complicated process such as bridging, and can effectively reduce the risk of breaking the sensing electrode pattern and its lead wire during bending, while improving the touch sensitivity and reducing the visibility of the sensing electrode pattern.
  • the present invention provides a touch sensor, including:
  • An induction electrode which includes at least two sub-induction electrodes arranged independently of each other in an array
  • the sensing electrode leads are disposed on the same layer as the sensing electrodes and are arranged in a gap position between two adjacent sub sensing electrodes;
  • One end of one of the sensing electrode leads is correspondingly connected to one of the sub-induction electrodes, and the other end is used to connect a processing circuit;
  • the sub-sensing electrode and the sensing electrode lead are made by the same photomask process, at least a part of the edge of the sub-induction electrode includes a curved convex portion or a concave portion, and the convex portion of the sub-induction electrode and The recesses adjacent to the sub-induction electrodes are relatively complementary; and the induction electrode leads are arranged in a curve along a gap between two adjacent sub-induction electrodes.
  • At least two of the induction electrode leads are arranged in the gap between two adjacent rows of the sub-induction electrodes, and the at least two of the induction electrode leads are insulated.
  • the sensing electrode lead includes a curved portion, and an arc shape of the curved portion corresponds to the convex portion or the concave portion adjacent to an edge of the sub-induction electrode, and the curved portion
  • the radius of curvature of is the same as the radius of curvature of the convex portion or the concave portion adjacent to the edge of the sub-induction electrode.
  • the curvature radii of the curved portions of two adjacent sensing electrode leads are the same.
  • the curvature radii of the convex portion and the concave portion of the edge of the sub-induction electrode are both 0.05 mm to 15 mm.
  • the size of the sub-induction electrode is between 0.5 mm and 10 mm.
  • the sub-induction electrode and the induction electrode lead are both in a metal grid structure.
  • the material of the sub-induction electrode and the lead of the induction electrode are the same.
  • the sensing electrode leads all extend and run in the same direction.
  • the present invention also provides a touch sensor, including:
  • An induction electrode which includes at least two sub-induction electrodes arranged independently of each other in an array
  • the sensing electrode leads are disposed on the same layer as the sensing electrodes and are arranged in a gap position between two adjacent sub sensing electrodes;
  • One end of one of the sensing electrode leads is correspondingly connected to one of the sub-induction electrodes, and the other end is used to connect a processing circuit;
  • At least a part of the edge of the sub-induction electrode includes a convex portion or a concave portion in a curve, the convex portion of a sub-induction electrode and the concave portion of an adjacent sub-induction electrode are relatively complementary; and the induction The electrode leads are arranged in a curve along a gap between two adjacent sub-induction electrodes.
  • At least two of the induction electrode leads are arranged in the gap between two adjacent rows of the sub-induction electrodes, and the at least two of the induction electrode leads are insulated.
  • the sensing electrode lead includes a curved portion, and an arc shape of the curved portion corresponds to the convex portion or the concave portion adjacent to an edge of the sub-induction electrode, and the curved portion
  • the radius of curvature of is the same as the radius of curvature of the convex portion or the concave portion adjacent to the edge of the sub-induction electrode.
  • the curvature radii of the curved portions of two adjacent sensing electrode leads are the same.
  • the curvature radii of the convex portion and the concave portion of the edge of the sub-induction electrode are both 0.05 mm to 15 mm.
  • the size of the sub-induction electrode is between 0.5 mm and 10 mm.
  • the sub-induction electrode and the induction electrode lead are both in a metal grid structure.
  • the material of the sub-induction electrode and the lead of the induction electrode are the same.
  • the sensing electrode leads all extend and run in the same direction.
  • the beneficial effect of the present invention is that the touch sensor provided by the present invention can reduce the difficulty of the process and the manufacturing cost by preparing the sensing electrode and the sensing electrode lead on the same layer without the need for a complicated process such as bridging.
  • the stress can be relaxed toward the angular boundary, which can effectively reduce The risk of breakage of the sub-sensing electrode pattern and the lead of the sensing electrode when bending; due to the relatively complementary arrangement of the convex and concave portions of two adjacent sub-sensing electrode patterns, the cross-sectional area of the sub-inductive electrode pattern can be maximized.
  • the electrostatic capacity changes to improve the touch sensitivity.
  • the edges of the sub-sensing electrode pattern and the sensing electrode lead adopt complex patterns such as arcs, which causes a diffuse reflection effect at the edges, making the sub-sensing electrode pattern and the sensing electrode lead difficult to be seen by human eyes. .
  • FIG. 1 is a schematic partial plan view of a touch sensor according to an embodiment of the present invention.
  • FIG. 2 is a schematic partial plan view of another touch sensor according to an embodiment of the present invention.
  • the present invention is directed to the prior art touch sensor. Due to the material and structure of the touch electrode pattern, the technical problem of fracture due to stress during bending is caused. This embodiment can solve this defect.
  • the touch sensor provided by the present invention includes: a sensing electrode for sensing a touch signal when a human body or a conductor touches, the sensing electrode includes a plurality of independent sub-sensing electrodes 102 arranged in an array; a sensing electrode lead 101, and The sensing electrodes are arranged on the same layer and are arranged in a gap position between two adjacent sub-sensing electrodes 102, and are used to lead the touch signal sensed by the sub-sensing electrodes 102 to a processing circuit; the sensing electrodes One end of the lead 101 is connected to the sub-induction electrode 102, and the other end is connected to the processing circuit; and one of the induction electrode leads 101 is correspondingly connected to one of the sub-induction electrodes 102.
  • the edge of the sub-induction electrode 102 includes a curved convex portion 104 or a concave portion 103.
  • the convex portions 104 or the concave portions 103 are distributed on the peripheral edges of the sub-induction electrode 102.
  • the convex portion 104 of one of the sub-induction electrodes 102 is relatively complementary to the concave portion 103 of an adjacent sub-induction electrode 102.
  • sensing electrode leads 101 are arranged in a curve along the gap between two adjacent sub-sensing electrodes 102, and different sub-sensing electrodes 102 are connected
  • the sensing electrode leads 101 all extend to a predetermined position in the same direction.
  • the sub-induction electrode 102 and the induction electrode lead 101 are formed of the same material.
  • Materials of the sub-induction electrode 102 and the induction electrode lead 101 include, but are not limited to, one or more metal materials such as Ti / Al / Ti / Ag / Cu.
  • the curvature radii of the convex portion 104 and the concave portion 103 on the edge of the sub-induction electrode 102 are both 0.05 mm to 15 mm.
  • the radius of curvature of the convex portion 104 and the concave portion 103 should not be too large or too small; if it is too large, it is close to a straight line, it cannot relax the stress during bending well, and it is easy to break; if it is too small, then It is easy to show obvious contour angle, and it is easy to produce cracks when bending.
  • a curvature radius of the convex portion 104 and the concave portion 103 is 0.1 mm to 10 mm.
  • the size of the sub-induction electrode 102 is between 0.5 mm and 10 mm, and preferably between 1 mm and 6 mm.
  • the induction electrode lead 101 includes a curved portion 105, and the arc shape of the curved portion 105 corresponds to the convex portion 104 and the concave portion 103 adjacent to the edge of the sub-induction electrode 102; preferably, the curved portion
  • the radius of curvature of 105 is the same as the radius of curvature of the convex portion 104 or the concave portion 103 adjacent to the edge of the sub-induction electrode 102.
  • the corresponding portion of one end of the sensing electrode lead 101 for connecting the processing circuit may be a straight line, which facilitates the concentration of each of the sensing electrode leads 101 and facilitates subsequent binding.
  • the curved portion 105 is not limited to this, and may be disposed on the induction electrode lead 101 at intervals. Alternatively, the curvature radius of the curved portion 105 is different from the convex portion 104 or the concave portion 103, but is mutually different. Insulation settings.
  • the sub-sensing electrode 102 and the sensing electrode lead 101 are patterned during the preparation process, and the design can resist the stress of the flexible panel during bending, and can disperse the sub-induction electrode 102 and The bending stress on the sensing electrode lead 101 is prevented from being damaged.
  • the sub-sensing electrode 102 is located at a gap between two adjacent pixel units of the flexible panel, and the sensing electrode lead 101 corresponding to the sub-induction electrode 102 is also located at a gap between two adjacent pixel units.
  • the sub-sensing electrode 102 and the sensing electrode lead 101 are curved, the sub-sensing electrode 102 and the sensing electrode lead 101 are difficult to be seen by human eyes and do not affect the display effect.
  • the sub-sensing electrode 102 is self-capacitive sensing, a capacitance is generated between a finger and the corresponding sub-sensing electrode 102, and the curved edge design can increase the area of a single sub-sensing electrode 102 and thus increase the area. The large electric capacity can further improve the touch sensitivity.
  • the specific touch principle is as follows:
  • the sensing electrode provides information about the X / Y coordinates of the touched position. If a human finger touches the protective cover, it causes a change in the self-capacitance of the sensing electrode below the position.
  • the sensing electrode lead 101 transmits the change in self-capacitance to the processing circuit, and then converts it into an electrical signal, so as to obtain a corresponding coordinate position. Because the convex portions 104 and the concave portions 103 of the two adjacent sub-sensing electrodes 102 are relatively complementary, the cross-sectional area of the sub-sensing electrodes 102 can be maximized, and the change in electrostatic capacity caused by touch can be increased, thereby improving Touch sensitivity.
  • FIG. 2 it is a schematic partial plan view of another touch sensor according to an embodiment of the present invention.
  • the convex portions 201 of the sub-induction electrodes 203 and the concave portions 202 between the two adjacent convex portions 201 may be unevenly distributed on the edges of the sub-induction electrodes 203, and the convex portions of the sub-induction electrodes 203 in two adjacent rows
  • the portion 201 is complementary to the concave portion 202.
  • the sensing electrode leads 204 corresponding to the sub-sensing electrodes 203 in the same row are located in the gap region on the side of the sub-sensing electrode 203 in the row, that is, the gaps between the two sub-sensing electrodes 203 in adjacent rows are arranged A plurality of sensing electrode leads 204.
  • the sensing electrode lead 204 includes a bent portion, and the curved directions of the bent portions of two neighboring sensing electrode leads 204 are consistent, that is, the neighboring two sensing electrode leads 204 are independently insulated from each other.
  • the curvature radii of the curved portions of two adjacent sensing electrode leads 204 are the same.
  • the present invention does not limit the specific shape of the sub-induction electrode 203.
  • the sub-induction electrode 203 uses a complex pattern including the convex portion 201 and the concave portion 202 in an arc shape, the boundary of the sub-induction electrode 203 is increased.
  • the diffuse reflection effect makes the sub-sensing electrode 203 difficult to be seen by human eyes, and at the same time alleviates the stress concentration to the angular boundary, thereby preventing the sub-sensing electrode 203 from breaking.
  • the sensing electrode lead 204 since the sensing electrode lead 204 includes the bent portion, visibility is also reduced, and cracking is avoided.
  • the sub-induction electrode 203 and the induction electrode lead 204 are made integrally through the same mask process.
  • the entire metal layer is deposited on the substrate by physical meteorological deposition (PVD) and other methods, and the material can be a metal such as Ti / Al / Ag or an alloy thereof.
  • PVD physical meteorological deposition
  • the material can be a metal such as Ti / Al / Ag or an alloy thereof.
  • a mask with a preset pattern a corresponding touch electrode pattern is fabricated and formed at one time through processes such as exposure, development, and etching.
  • a sensing electrode and a sensing electrode lead are prepared on the same layer, and no complicated process such as bridging is required, thereby reducing the manufacturing difficulty and manufacturing cost.
  • the stress can be relaxed toward the angular boundary, which can effectively reduce The risk of breakage of the sub-sensing electrode pattern and the lead of the sensing electrode when bending; due to the relatively complementary arrangement of the convex and concave portions of two adjacent sub-sensing electrode patterns, the cross-sectional area of the sub-inductive electrode pattern can be maximized.
  • the electrostatic capacity changes to improve the touch sensitivity.
  • the edges of the sub-sensing electrode pattern and the sensing electrode lead adopt complex patterns such as arcs, which causes a diffuse reflection effect at the edges, making the sub-sensing electrode pattern and the sensing electrode lead difficult to be seen by human eyes. .

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)

Abstract

本发明提供一种触摸传感器，包括：感应电极，其包括阵列排布的子感应电极；感应电极引线，排布于相邻两所述子感应电极之间且连接至所述子感应电极；所述子感应电极的边缘包括曲线的凸部/凹部，相邻两所述子感应电极的所述凸部和所述凹部互补设置；所述感应电极引线沿相邻两所述子感应电极之间的间隙呈曲线排布。

Description

一种触摸传感器 技术领域
本发明涉及触摸显示屏技术领域，尤其涉及一种触摸传感器。
 背景技术
柔性AMOLED具有良好的弯折及柔韧性，因此要求与之搭配的触控传感器同样需要具有良好的柔性特性。传统的触控传感器，无论是外挂式的，还是Oncell/Incell等集成到显示屏上的，通常均由透明导电薄膜(ITO)制作而成，而ITO是脆性的半导体材料，弯折时由于应力的作用容易产生断裂的问题，因此存在功能不良的风险。传统的触控电极图案，无论是互电容式触摸传感器或者自电容触摸传感器，其电极图案边缘容易由于应力的集中存在断裂的风险。
因此，有必要提供一种触摸传感器，以解决现有技术所存在的问题。
 技术问题
本发明提供一种触摸传感器，无需架桥等复杂工艺，可以有效降低弯折时感应电极图案及其引线产生断裂的风险，同时提高触摸灵敏度，减小感应电极图案的可见性。
 技术解决方案
为解决上述问题，本发明提供的技术方案如下：
本发明提供一种触摸传感器，包括：
感应电极，所述感应电极包括阵列排布的至少两个彼此独立的子感应电极；
感应电极引线，与所述感应电极同层设置，且排布于相邻两所述子感应电极之间的间隙位置；
一所述感应电极引线一端对应连接一所述子感应电极，相对另一端用于连接处理电路；
其中，所述子感应电极与所述感应电极引线经同一道光罩工艺制成，所述子感应电极边缘的至少一部分包括曲线的凸部或者凹部，一所述子感应电极的所述凸部与相邻所述子感应电极的所述凹部相对互补设置；且所述感应电极引线沿相邻两所述子感应电极之间的间隙呈曲线排布。
根据本发明一优选实施例，相邻两列所述子感应电极之间的所述间隙排布有至少两所述感应电极引线，且所述至少两所述感应电极引线绝缘设置。
根据本发明一优选实施例，所述感应电极引线包括弯曲部，所述弯曲部的弧形与相邻所述子感应电极边缘的所述凸部或所述凹部相对应，且所述弯曲部的曲率半径与相邻所述子感应电极边缘的所述凸部或所述凹部的曲率半径相同。
根据本发明一优选实施例，相邻两所述感应电极引线的所述弯曲部的所述曲率半径相同。
根据本发明一优选实施例，所述子感应电极边缘的所述凸部及所述凹部的所述曲率半径均为0.05 mm ~15mm。
根据本发明一优选实施例，所述子感应电极的尺寸大小为0.5mm~10mm之间。
根据本发明一优选实施例，所述子感应电极与所述感应电极引线均为金属网格结构。
根据本发明一优选实施例，所述子感应电极与所述感应电极引线的材料相同。
根据本发明一优选实施例，所述感应电极引线均向同一方向延伸走线。
本发明还提供一种触摸传感器，包括：
感应电极，所述感应电极包括阵列排布的至少两个彼此独立的子感应电极；
感应电极引线，与所述感应电极同层设置，且排布于相邻两所述子感应电极之间的间隙位置；
一所述感应电极引线一端对应连接一所述子感应电极，相对另一端用于连接处理电路；
其中，所述子感应电极边缘的至少一部分包括曲线的凸部或者凹部，一所述子感应电极的所述凸部与相邻所述子感应电极的所述凹部相对互补设置；且所述感应电极引线沿相邻两所述子感应电极之间的间隙呈曲线排布。
根据本发明一优选实施例，相邻两列所述子感应电极之间的所述间隙排布有至少两所述感应电极引线，且所述至少两所述感应电极引线绝缘设置。
根据本发明一优选实施例，所述感应电极引线包括弯曲部，所述弯曲部的弧形与相邻所述子感应电极边缘的所述凸部或所述凹部相对应，且所述弯曲部的曲率半径与相邻所述子感应电极边缘的所述凸部或所述凹部的曲率半径相同。
根据本发明一优选实施例，相邻两所述感应电极引线的所述弯曲部的所述曲率半径相同。
根据本发明一优选实施例，所述子感应电极边缘的所述凸部及所述凹部的所述曲率半径均为0.05 mm ~15mm。
根据本发明一优选实施例，所述子感应电极的尺寸大小为0.5mm~10mm之间。
根据本发明一优选实施例，所述子感应电极与所述感应电极引线均为金属网格结构。
根据本发明一优选实施例，所述子感应电极与所述感应电极引线的材料相同。
根据本发明一优选实施例，所述感应电极引线均向同一方向延伸走线。
 有益效果
本发明的有益效果为：本发明提供的触摸传感器，通过在同一层制备感应电极和感应电极引线，无需架桥等复杂工艺，降低制程难度及制作成本。而且通过将子感应电极图案的至少一部分边界设置成多个曲线的凸部或者凹部，同时将连接子感应电极的感应电极引线也设置为曲线，能够缓和应力向有角的边界集中，可以有效降低弯折时子感应电极图案及感应电极引线产生断裂的风险；由于相邻两个子感应电极图案的凸部与凹部相对互补设置，可使子感应电极图案截面面积最大化，加大触摸时引起的静电容量变化，从而提高触摸灵敏度；另外，子感应电极图案边缘及感应电极引线采用弧形等复杂图案，从而在边缘处引起漫反射效应，使子感应电极图案及感应电极引线不易被人眼看到。
 附图说明
为了更清楚地说明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单介绍，显而易见地，下面描述中的附图仅仅是发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例提供的触摸传感器的部分平面示意图；
图2为本发明实施例提供的另一种触摸传感器的部分平面示意图。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图示，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。在图中，结构相似的单元是用以相同标号表示。
本发明针对现有技术的触摸传感器，由于触控电极图案的材质及结构，导致在弯折时由于应力作用发生断裂的技术问题，本实施例能够解决该缺陷。
参阅图1，为本发明实施例提供的触摸传感器的部分平面示意图。本发明提供的触摸传感器，包括：感应电极，用于感应人体或导体触摸时的触摸信号，所述感应电极包括阵列排布的多个彼此独立的子感应电极102；感应电极引线101，与所述感应电极同层设置，且排布于相邻两所述子感应电极102之间的间隙位置，并用于将所述子感应电极102感应的所述触摸信号引出至处理电路；所述感应电极引线101的一端连接所述子感应电极102，相对另一端连接所述处理电路；且一所述感应电极引线101对应连接一所述子感应电极102。其中，所述子感应电极102边缘的至少一部分包括曲线的凸部104或者凹部103。优选的，所述子感应电极102四周边缘均分布有所述凸部104或者所述凹部103。一所述子感应电极102的所述凸部104与相邻所述子感应电极102的所述凹部103相对互补设置。相邻两所述子感应电极102之间存在间隙，所述感应电极引线101沿相邻两所述子感应电极102之间的所述间隙呈曲线排布，且不同所述子感应电极102连接的所述感应电极引线101均向同一方向延伸至预设位置。
其中，所述子感应电极102与所述感应电极引线101由相同的材料形成。所述子感应电极102与所述感应电极引线101的材料包括但不限于Ti/Al/Ti/Ag/Cu等其中一种金属材质或者一种以上。
其中，所述子感应电极102边缘的所述凸部104及所述凹部103的曲率半径均为0.05 mm ~15mm。所述凸部104和所述凹部103的所述曲率半径不宜过大或过小；如果过大，则接近于直线，不能很好的缓和弯曲时的应力，易发生断裂；如果过小，则容易呈现明显轮廓角度，容易弯曲时产生裂纹。优选的，所述凸部104及所述凹部103的曲率半径为0.1 mm ~10mm。所述子感应电极102的尺寸大小为0.5mm~10mm之间，优选为1mm~6mm之间。
所述感应电极引线101包括弯曲部105，所述弯曲部105的弧形与相邻所述子感应电极102边缘的所述凸部104及所述凹部103相对应；优选的，所述弯曲部105的曲率半径与相邻所述子感应电极102边缘的所述凸部104或所述凹部103的曲率半径相同。所述感应电极引线101用于连接所述处理电路的一端的相应部分可以为直线，便于将各个所述感应电极引线101集中，利于后续的绑定。所述弯曲部105并不限于此，还可以间隔的设置于所述感应电极引线101上；或者，所述弯曲部105的曲率半径与所述凸部104或所述凹部103不相同，但相互绝缘设置。
其中，所述子感应电极102与所述感应电极引线101在制备过程中经图案化后均形成网格状，该设计可以抵抗柔性面板在弯折中应力，可以分散所述子感应电极102以及所述感应电极引线101所受到的弯折应力，避免其被损坏。所述子感应电极102位于该柔性面板相邻两像素单元之间的间隙处，所述子感应电极102对应的所述感应电极引线101也位于相邻两所述像素单元之间的间隙处。且由于所述子感应电极102的边缘以及所述感应电极引线101为曲线状，因此使得所述子感应电极102以及所述感应电极引线101不易被人眼所看见，不会影响显示效果。另外，由于所述子感应电极102为自容式感应，手指与对应的所述子感应电极102之间产生电容，而曲线状的边缘设计可以增大单个所述子感应电极102的面积从而增大电容量，进而可以提高触摸灵敏度。
具体触摸原理如下：所述感应电极提供关于触摸的位置的X/Y坐标的信息，如果人的手指接触保护盖板时，引起该位置下方的所述感应电极的自电容的变化，通过所述感应电极引线101将自电容的变化传递到所述处理电路，再转化成电信号，从而得出相应的坐标位置。由于相邻两所述子感应电极102的所述凸部104与所述凹部103相对互补设置，可使所述子感应电极102截面面积最大化，加大触摸时引起的静电容量变化，从而提高触摸灵敏度。
如图2所示，为本发明实施例提供的另一种触摸传感器的部分平面示意图。子感应电极203的凸部201与相邻两所述凸部201之间的凹部202可以在所述子感应电极203的边缘不均匀分布，相邻两列所述子感应电极203的所述凸部201对应所述凹部202互补设置。同一列所述子感应电极203对应的所述感应电极引线204位于该列子感应电极203一侧的间隙区域，也就是说，相邻两列所述子感应电极203之间的间隙处排布有多条感应电极引线204。所述感应电极引线204包括弯曲部，相邻两所述感应电极引线204的所述弯曲部的曲线方向变化一致，即相邻两所述感应电极引线204之间相互独立绝缘设置。优选的，相邻两所述感应电极引线204的所述弯曲部的曲率半径相同。本发明对子感应电极203的具体形状不做限定，由于所述子感应电极203采用包括弧形的所述凸部201和所述凹部202等复杂图案，从而增加所述子感应电极203边界的漫反射效应，使所述子感应电极203不易被人眼看到，同时也缓和了应力向有角的边界集中，从而避免所述子感应电极203发生破裂。同理，由于所述感应电极引线204包括所述弯曲部，从而也降低了可见性，避免破裂。
其中，所述子感应电极203与所述感应电极引线204经同一道光罩工艺一体制成。如首先通过物理气象沉积(PVD)等方法在基底上沉积整面的金属层，其材质可以为Ti/Al/Ag等金属或者及其合金。然后通过预设图案的掩膜版，经曝光、显影、刻蚀等工艺一次性制作成型成相应的触控电极图案。
本发明提供的触摸传感器，通过在同一层制备感应电极和感应电极引线，无需架桥等复杂工艺，降低制程难度及制作成本。而且通过将子感应电极图案的至少一部分边界设置成多个曲线的凸部或者凹部，同时将连接子感应电极的感应电极引线也设置为曲线，能够缓和应力向有角的边界集中，可以有效降低弯折时子感应电极图案及感应电极引线产生断裂的风险；由于相邻两个子感应电极图案的凸部与凹部相对互补设置，可使子感应电极图案截面面积最大化，加大触摸时引起的静电容量变化，从而提高触摸灵敏度；另外，子感应电极图案边缘及感应电极引线采用弧形等复杂图案，从而在边缘处引起漫反射效应，使子感应电极图案及感应电极引线不易被人眼看到。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (18)

  1. 一种触摸传感器，其包括：
    感应电极，所述感应电极包括阵列排布的至少两个彼此独立的子感应电极；
    感应电极引线，与所述感应电极同层设置，且排布于相邻两所述子感应电极之间的间隙位置；
    一所述感应电极引线一端对应连接一所述子感应电极，相对另一端用于连接处理电路；
    其中，所述子感应电极与所述感应电极引线经同一道光罩工艺制成，所述子感应电极边缘的至少一部分包括曲线的凸部或者凹部，一所述子感应电极的所述凸部与相邻所述子感应电极的所述凹部相对互补设置；且所述感应电极引线沿相邻两所述子感应电极之间的间隙呈曲线排布。
  2. 根据权利要求1所述的触摸传感器，其中，相邻两列所述子感应电极之间的所述间隙排布有至少两所述感应电极引线，且所述至少两所述感应电极引线绝缘设置。
  3. 根据权利要求1所述的触摸传感器，其中，所述感应电极引线包括弯曲部，所述弯曲部的弧形与相邻所述子感应电极边缘的所述凸部或所述凹部相对应，且所述弯曲部的曲率半径与相邻所述子感应电极边缘的所述凸部或所述凹部的曲率半径相同。
  4. 根据权利要求3所述的触摸传感器，其中，相邻两所述感应电极引线的所述弯曲部的所述曲率半径相同。
  5. 根据权利要求3所述的触摸传感器，其中，所述子感应电极边缘的所述凸部及所述凹部的所述曲率半径均为0.05 mm ~15mm。
  6. 根据权利要求1所述的触摸传感器，其中，所述子感应电极的尺寸大小为0.5mm~10mm之间。
  7. 根据权利要求1所述的触摸传感器，其中，所述子感应电极与所述感应电极引线均为金属网格结构。
  8. 根据权利要求1所述的触摸传感器，其中，所述子感应电极与所述感应电极引线的材料相同。
  9. 根据权利要求1所述的触摸传感器，其中，所述感应电极引线均向同一方向延伸走线。
  10. 一种触摸传感器，其包括：
    感应电极，所述感应电极包括阵列排布的至少两个彼此独立的子感应电极；
    感应电极引线，与所述感应电极同层设置，且排布于相邻两所述子感应电极之间的间隙位置；
    一所述感应电极引线一端对应连接一所述子感应电极，相对另一端用于连接处理电路；
    其中，所述子感应电极边缘的至少一部分包括曲线的凸部或者凹部，一所述子感应电极的所述凸部与相邻所述子感应电极的所述凹部相对互补设置；且所述感应电极引线沿相邻两所述子感应电极之间的间隙呈曲线排布。
  11. 根据权利要求10所述的触摸传感器，其中，相邻两列所述子感应电极之间的所述间隙排布有至少两所述感应电极引线，且所述至少两所述感应电极引线绝缘设置。
  12. 根据权利要求10所述的触摸传感器，其中，所述感应电极引线包括弯曲部，所述弯曲部的弧形与相邻所述子感应电极边缘的所述凸部或所述凹部相对应，且所述弯曲部的曲率半径与相邻所述子感应电极边缘的所述凸部或所述凹部的曲率半径相同。
  13. 根据权利要求12所述的触摸传感器，其中，相邻两所述感应电极引线的所述弯曲部的所述曲率半径相同。
  14. 根据权利要求12所述的触摸传感器，其中，所述子感应电极边缘的所述凸部及所述凹部的所述曲率半径均为0.05 mm ~15mm。
  15. 根据权利要求10所述的触摸传感器，其中，所述子感应电极的尺寸大小为0.5mm~10mm之间。
  16. 根据权利要求10所述的触摸传感器，其中，所述子感应电极与所述感应电极引线均为金属网格结构。
  17. 根据权利要求10所述的触摸传感器，其中，所述子感应电极与所述感应电极引线的材料相同。
  18. 根据权利要求10所述的触摸传感器，其中，所述感应电极引线均向同一方向延伸走线。
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