WO2019090721A1 - 触摸传感器、触控装置和电子终端 - Google Patents

触摸传感器、触控装置和电子终端 Download PDF

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Publication number
WO2019090721A1
WO2019090721A1 PCT/CN2017/110535 CN2017110535W WO2019090721A1 WO 2019090721 A1 WO2019090721 A1 WO 2019090721A1 CN 2017110535 W CN2017110535 W CN 2017110535W WO 2019090721 A1 WO2019090721 A1 WO 2019090721A1
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Prior art keywords
touch
electrode
sub
electrodes
portions
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PCT/CN2017/110535
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English (en)
French (fr)
Inventor
卢鸿星
刘武
王朋
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深圳市汇顶科技股份有限公司
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Application filed by 深圳市汇顶科技股份有限公司 filed Critical 深圳市汇顶科技股份有限公司
Priority to PCT/CN2017/110535 priority Critical patent/WO2019090721A1/zh
Priority to CN201790000467.3U priority patent/CN208969622U/zh
Publication of WO2019090721A1 publication Critical patent/WO2019090721A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means

Definitions

  • the embodiments of the present application relate to touch detection technologies, and in particular, to a touch sensor, a touch device, and an electronic terminal.
  • the touch sensor is an external input device with more and more applications.
  • the touch sensor can be touched by an electronic pen or touched by a finger, which makes the human-computer interaction more direct, simple, quick and user-friendly.
  • large-screen electronic products such as smart phones, tablet computers and navigation systems
  • the trend of corresponding touch sensors to the larger size is becoming more and more obvious.
  • FIG. 1 is a schematic diagram of electrode traces of a touch sensor in the prior art.
  • the electrodes in the touch sensor adopt an array method of horizontal and vertical crossing, that is, the touch sensor includes a vertical electrode 11 and a horizontal electrode. 12, both may be disposed on different glass or different transparent film media, or the vertical electrode 11 and the lateral electrode 12 may be bridged on the same layer of glass or the same layer of film medium. .
  • the traces X1, X2, and X3 are respectively connected to the vertical direction electrode 11, and the traces Y1, Y2, Y3, and Y4 are respectively connected to the horizontal direction electrode 12; by introducing the above-mentioned respective traces into the touch chip, the touch chip can be The touched position information on the touch sensor is identified according to the touch signal transmitted by the trace.
  • the number of electrode traces in the touch sensor described above is large, so that a large space is required in the touch sensor to accommodate the traces, thereby reducing the effective touch area of the touch sensor.
  • the embodiments of the present application provide a touch sensor, a touch device, and an electronic terminal to solve the technical problem that the effective touch area of the touch sensor is low in the prior art.
  • the embodiment of the present application provides a touch sensor, where the touch sensor includes a plurality of first direction touch electrodes and a plurality of sets of second direction touch electrodes;
  • Each of the first direction touch electrodes includes: a first touch portion extending in a first direction, a second touch portion extending in a first direction and located below the first touch portion, and an electrical connection a first connecting portion of the first touch portion and the second touch portion;
  • Each of the second direction touch electrodes includes: a first sub-electrode extending in a second direction; and a second sub-electrode extending in a second direction and interleaved with the first sub-electrode;
  • Each of the first sub-electrodes includes: a plurality of third touch portions extending in a second direction and having a projection of a plane of the touch electrodes in each of the first directions intersecting only the first touch portion, And electrically connecting the second connecting portions of the plurality of third touch portions;
  • Each of the second sub-electrodes includes: a plurality of fourth touch portions extending in the second direction and having a projection of the plane of the touch electrodes in each of the first directions intersecting only the second touch portion, And electrically connecting the third connecting portions of the plurality of fourth touch portions.
  • each of the third touch portions is located between two adjacent fourth touch portions.
  • the second connecting portion is located at a side of the fourth touch portion
  • the third connecting portion is located at a side of the third touch portion.
  • first direction touch electrode and the second direction touch electrode are disposed on different substrates; or the first direction touch electrode and the second direction touch electrode are disposed on On the same substrate.
  • the first touch portion, the second touch portion, the third touch portion, or the fourth touch portion are of a king shape or an I-shaped shape.
  • the method further includes a plurality of first traces, a plurality of second traces, and a plurality of third traces;
  • Each of the first traces is connected to one of the first direction touch electrodes, and each of the second traces is connected to one of the first sub-electrodes, and each of the third traces is connected to the second one. Sub-electrode.
  • the second aspect of the present disclosure provides a touch device including a touch chip and the touch sensor according to the first aspect, wherein the touch chip and the touch sensor are connected by a trace.
  • a first direction touch electrode of the touch sensor is connected to the trace through a first connection portion of the touch sensor.
  • an embodiment of the present application provides an electronic terminal, including the touch device according to the second aspect.
  • the touch sensor, the touch device, and the electronic terminal provided by the embodiments of the present application include a plurality of a first direction touch electrode and a plurality of second direction touch electrodes; each of the first direction touch electrodes includes: a first touch portion extending along the first direction, extending along the first direction and located at the first touch portion a second touch portion and a first connection portion electrically connecting the first touch portion and the second touch portion; each set of the second direction touch electrodes includes: a first sub-electrode extending along the second direction a second sub-electrode extending in a second direction and interleaved with the first sub-electrode; each of the first sub-electrodes includes: a plurality of projections extending in the second direction and in a plane of the touch electrodes in each of the first directions a third touch portion intersecting the touch portion and a second connection portion electrically connecting the plurality of third touch portions; each of the second sub-electrodes includes: a plurality of extending in the second
  • the first touch portion and the second touch portion are electrically connected through the first connecting portion, so that the first touch portion and the second touch portion can be connected by one of the wires, so that the number of the wires can be reduced.
  • the space for accommodating the traces in the touch sensor can be reduced, whereby the effective touch area of the touch screen in the touch sensor can be increased, and a narrow bezel can be realized.
  • the second sub-electrode since the first sub-electrode and the second sub-electrode are alternately disposed, and the projection of the third touch portion of the first sub-electrode in the plane of the touch electrode in the first direction intersects only the first touch portion, the second The projection of the fourth touch portion of the sub-electrode in the plane of the touch electrode in the first direction intersects only the second touch portion, thereby ensuring that the touch sensor has unique coordinates in each position. value.
  • FIG. 1 is a schematic diagram of electrode traces of a touch sensor in the prior art
  • FIG. 2 is a schematic structural diagram of a touch sensor according to an embodiment of the present application.
  • FIG. 3 is another schematic structural diagram of a touch sensor according to an embodiment of the present application.
  • Figure 4a is a schematic cross-sectional view of AA' in Figure 2;
  • Figure 4b is a schematic cross-sectional view of BB' in Figure 2;
  • Figure 5a is a schematic cross-sectional view of CC' in Figure 3;
  • Figure 5b is a schematic cross-sectional view of DD' in Figure 3;
  • FIG. 6 is still another schematic structural diagram of a touch sensor according to an embodiment of the present disclosure.
  • Figure 7a is a schematic cross-sectional view of EE' in Figure 6;
  • Figure 7b is a schematic cross-sectional view of FF' in Figure 6;
  • Figure 7c is a schematic cross-sectional view of GG' in Figure 6;
  • Figure 8a is a schematic view showing the shape of the first sub-electrode and the second sub-electrode of Figure 2;
  • Figure 8b is a schematic view showing another shape of the first sub-electrode and the second sub-electrode of Figure 2;
  • Figure 8c is a schematic view showing the shapes of the first sub-electrode and the second sub-electrode portion of Figure 3;
  • FIG. 8d is a schematic view showing the shapes of the first sub-electrode and the second sub-electrode portion of FIG. 6.
  • 211 a first touch portion
  • the commonly used touch sensors include resistive and capacitive, wherein the capacitive touch sensor has the advantages of high sensitivity, long life, and high light transmittance, and the working principle is: providing at least one layer of transparent conductive material on the surface of the substrate.
  • the touch structure is formed.
  • the capacitive touch sensor includes a touch area and a bezel area for placing traces and ground lines.
  • a common capacitive touch sensor includes a plurality of electrodes extending in a first direction and a plurality of electrodes extending in a second direction, and each electrode extending in a first direction and each electrode extending in a second direction are associated with each other
  • the traces are connected to other components (for example, a Flexible Printed Circuit (FPC) or a touch chip), so that the touch chip can recognize the touch sensor on the touch signal according to the trace signal transmitted by the trace. Location information touched.
  • FPC Flexible Printed Circuit
  • the number of electrode traces is large, so that a large space is needed in the touch sensor to accommodate the traces, thereby reducing the effective touch area of the touch sensor.
  • the touch sensor provided by the present application is intended to solve the above technical problems of the prior art.
  • touch sensor provided by the embodiment of the present application will be described below in conjunction with a plurality of examples. It should be noted that, for convenience of description, the size of different structures in the touch sensor structure is enlarged or reduced, so the size and proportion shown in the drawings of the present application do not necessarily represent the actual size, nor do they reflect the proportional relationship of the dimensions.
  • FIG. 2 is a schematic structural diagram of a touch sensor according to an embodiment of the present application
  • FIG. 3 is a schematic diagram of the present invention.
  • the touch sensor 20 includes a plurality of first-direction touch electrodes 21 and a plurality of second-direction touch electrodes 22;
  • Each of the first-direction touch electrodes 21 includes a first touch portion 211 extending in a first direction, a second touch portion 212 extending in a first direction and located below the first touch portion 211, and an electrical connection.
  • the first connecting portion 213 of the first touch portion 211 and the second touch portion 212 are examples of the first touch portion 211 and the second touch portion 212.
  • Each set of second direction touch electrodes 22 includes a first sub-electrode extending in a second direction and a second sub-electrode extending in a second direction and interleaved with the first sub-electrode, wherein each of the first sub-electrodes includes a plurality of The projections extending in the second direction and in the plane of the touch electrodes 21 in the first direction are only the third touch portion 221 crossing the first touch portion 211 and the third touch portions 221 electrically connected a second connecting portion 222; each of the second sub-electrodes includes a plurality of fourth touch portions extending in the second direction and the projection of the plane of the touch electrodes 21 in each of the first directions intersects only the second touch portion 212 223.
  • the third connecting portion 224 is electrically connected to the plurality of fourth touch portions 223.
  • the first direction and the second direction may be any direction, as long as the projection of the third touch portion 221 in the plane of the touch electrode 21 in the first direction is only crossed with the first touch portion 211, and the fourth touch The projection of the control unit 223 on the plane of the touch electrode 21 in the first direction may only intersect the second touch portion 212.
  • the first direction may be a horizontal direction
  • the second direction may be a vertical direction
  • the first direction may be a vertical direction
  • the second direction may be Can be in the horizontal direction.
  • the first direction and the second direction are not specifically limited in the embodiment of the present application.
  • each of the first-direction touch electrodes 21 includes a first touch portion 211 , a second touch portion 212 located below the first touch portion 211 , and electrically connected to the first touch portion 211 and the second The first connecting portion 213 of the touch portion 212.
  • the second touch portion 212 may be located directly below the first touch portion 211 or obliquely below the first touch portion 211 .
  • first touch portion 211, the second touch portion 212, the third touch portion 221, and the fourth touch portion 223 may be made of various conductive materials, such as Indium Tin Oxide (ITO) or a metal mesh. (metal mesh) and so on.
  • the first connecting portion 213, the second connecting portion 222, and the third connecting portion 224 may be made of ITO or a metal mesh as a conductor material. Of course, other conductor materials may be used.
  • the first touch portion 211 and the second touch portion 212 are connected by using the first connecting portion 213 in each of the first-direction touch electrodes 21, so that the first direction touch is connected by using a trace.
  • the first touch portion 211 and the second touch portion 212 of the touch electrode 21 in the first direction can be connected to each other. Compared with the prior art, this method can reduce the walking by half. The number of lines.
  • the first direction touch electrode may further include a plurality of touch portions extending in the first direction, and the plurality of touch portions are electrically connected by the first connection portion, for example, when the first direction is
  • the touch electrodes include three touch portions extending in the first direction, and after the three touch portions are electrically connected through the first connection portion, the three touch portions will correspond to the same trace, relative to the existing Technically, this approach can reduce the number of traces by two-thirds.
  • a first touch portion 211 and a second touch portion 212 are included in the first touch control electrode, and the first touch portion 211 and the second touch portion 212 pass through the first connection portion 213. After the connection, in order to make the touch sensor in the touch area have a unique coordinate value in each position, the first sub-electrode extending in the second direction and the second sub-electrode extending in the second direction need to be staggered. .
  • the first sub-electrode includes a plurality of third touch portions 221 extending in the second direction and a second connecting portion 222 electrically connected to the plurality of third touch portions 221, in the second sub-electrode
  • the fourth touch portion 223 extending in the second direction and the third connecting portion 224 electrically connecting the plurality of fourth touch portions 223 are included.
  • Each of the third touch portions 221 is located between the adjacent two touch portions 223 .
  • each of the fourth touch portions 223 is located between the adjacent two third touch portions 221 . As shown in FIG.
  • the second connecting portion 222 is located at a side of the fourth touch portion 223
  • the third connecting portion 224 is located at a side of the third touch portion 221 , so that the first sub-electrode and the second portion can be ensured. There is no overlapping area between the sub-electrodes.
  • the projection of the third touch portion 221 in the plane of the touch electrode 21 in each of the first directions intersects only the first touch portion 211, and the fourth touch portion 223 is in the plane of the touch electrode 21 in each of the first directions.
  • the projection is only crossed with the second touch portion 212 to realize a unique coordinate value in each position of the touch sensor.
  • each set of the second-direction touch electrodes 22 is related to the number of touch portions included in each of the first-direction touch electrodes 21 .
  • each set of second-direction touch electrodes 22 includes n sub-electrodes extending in the second direction, wherein n is an integer greater than or equal to 2, thereby ensuring that the touch sensor has a unique coordinate value at each position in the touch area.
  • each of the second-direction touch electrodes includes a plurality of sub-electrodes extending in the second direction, the sub-electrodes are staggered, and the touch portions of the sub-electrodes are placed.
  • the manner of placing the touch portions in the sub-electrodes extending only in the second direction is similar, and details are not described herein again.
  • the first touch portion and the second touch portion are electrically connected through the first connecting portion, so that the first touch portion and the second touch portion are connected by a single trace. Therefore, the number of traces can be reduced, so that the space for accommodating the traces in the touch sensor can be reduced, whereby the effective touch area of the touch screen in the touch sensor can be increased, and a narrow border can be realized.
  • the second sub-electrode since the first sub-electrode and the second sub-electrode are alternately disposed, and the projection of the third touch portion of the first sub-electrode in the plane of the touch electrode in the first direction intersects only the first touch portion, the second The projection of the fourth touch portion of the sub-electrode in the plane of the touch electrode in the first direction intersects only the second touch portion, thereby ensuring that the touch sensor has unique coordinates in each position. value.
  • the first direction touch electrode 21 and the second direction touch electrode 22 are disposed on different substrates.
  • FIG. 4a is a schematic cross-sectional view of AA' in FIG. 2
  • FIG. 4b is a cross-sectional view of BB' in FIG. 2, as shown in FIGS. 4a-4b
  • the first-direction touch electrode 21 is disposed on the first substrate.
  • the second direction of the touch electrode 22 is disposed on the second substrate, that is, the first touch portion 211 and the second touch portion 212 of the first direction touch electrode 21 and the first of the second direction touch electrodes 22
  • the third touch portion 221 of the sub-electrode and the fourth touch portion 223 of the second sub-electrode of the second direction touch electrode 22 are respectively plated on different substrates.
  • FIG. 5a is a schematic cross-sectional view of CC' in FIG. 3, and FIG. 5b is a cross-sectional view of DD' in FIG. 3, as shown in FIGS. 5a-5b, the first direction touch electrode 21 is disposed on the second substrate, and the second The directional touch electrode 22 is disposed on the first substrate, that is, the first touch portion 211 and the second touch portion 212 of the first direction touch electrode 21 and the first sub electrode of the second direction touch electrode 22
  • the fourth touch portion 223 of the second sub-electrode of the third touch portion 221 and the second direction touch electrode 22 are respectively plated on different substrates.
  • the second connecting portion 222 for electrically connecting the third touch portions 221 will be located on a different substrate from the second touch portion 212 for electrically connecting the fourth touch portions 223.
  • the three connection portions 224 will be located on different substrates from the first touch portion 211.
  • the material of the first substrate and the second substrate may be, for example, glass or transparent plastic.
  • the first substrate and the second substrate may also be other materials, which is not limited in this embodiment.
  • the first direction touch electrode 21 and the second direction touch electrode 22 are disposed on the same substrate.
  • FIG. 6 is still another schematic structural diagram of a touch sensor according to an embodiment of the present application.
  • 7a is a schematic cross-sectional view of EE' in FIG. 6
  • FIG. 7b is a schematic cross-sectional view of FF' in FIG. 6
  • FIG. 7c is a schematic cross-sectional view of GG' in FIG. 6, as shown in FIG. 6 - FIG.
  • the touch electrode 21 and the second direction touch electrode 22 are disposed on the third substrate. In this case, at the intersection of the touch portions of the first direction electrode 21 and the second direction electrode 22, the bridge can be connected by a bridge. .
  • the first touch portion 211 is disconnected, and the disconnected first touch portion 211 is connected by a bridge method, of course, at the intersection.
  • the third touch portion 221 may be disconnected, and the disconnected third touch portion 221 may be connected by a bridge method.
  • the second touch portion 212 is disconnected, and the disconnected second touch portion 212 is connected by a bridge method.
  • the fourth touch portion 223 may be disconnected, and the disconnected fourth touch portion 223 may be connected by a bridge method.
  • the bridge includes a bridge wire and an insulating layer, and the insulating layer is located between the bridge wire and the substrate where the first direction touch electrode 21 and the second direction touch electrode 22 are located.
  • the material of the bridge wire may be a metal such as aluminum, aluminum alloy or copper alloy.
  • the first touch portion, the second touch portion, the third touch portion, or the fourth touch portion may include a ridge type or an I-shaped pattern.
  • a pattern such as a rectangle, a triangle, or a zigzag may be formed on the first touch portion, the second touch portion, the third touch portion, or the fourth touch portion.
  • the shape of the first touch portion, the second touch portion, the third touch portion, or the fourth touch portion may be other shapes, such as a circular shape or an irregular shape. limit.
  • FIG. 8a is a schematic diagram of a shape of the first sub-electrode and the second sub-electrode of FIG. 2
  • FIG. 8b is another schematic diagram of the first sub-electrode and the second sub-electrode of FIG. 2
  • FIG. 8c is a diagram of FIG.
  • FIG. 8d is a schematic view showing the shapes of the first sub-electrode and the second sub-electrode portion in FIG. 6 , as shown in FIGS. 8 a to 8 d , which may be in the third touch portion 221 .
  • the fourth touch portion 223 is formed with any shape, such as a "king" shape, a "work” shape, or a rectangle, a triangle or a zigzag shape.
  • any shape may be formed on the first touch portion or the second touch portion. Since the arbitrary shape can be formed on the first touch portion, the second touch portion, the third touch portion, or the fourth touch portion, the touch performance of the touch sensor can be improved. In practical applications, different shapes may be formed on each touch portion depending on the material, structure, or environment of the touch sensor, and thus different touch effects may be used.
  • the touch sensor further includes a plurality of first traces and a plurality of second traces And a plurality of third traces; wherein each of the first traces is connected to a first direction touch electrode, and each of the second traces is connected to a first sub-electrode, and each of the third traces is correspondingly connected A second sub-electrode.
  • the touch sensor further includes a plurality of first traces Y1 and Y2, a plurality of second traces X1, X3, and X5, and a plurality of third traces X2, X4, and X6, wherein each of the first Each of the traces is connected to a first direction touch electrode, and the first direction touch electrode 21 is connected to the first trace through the first connection portion 213.
  • the first trace Y1 is connected to the first first direction touch electrode 21, and the first trace Y2 is connected to the second first direction touch electrode 21.
  • Each of the second traces is connected to a first sub-electrode.
  • the second trace X1 is connected to the first sub-electrode of the first set of second-direction touch electrodes 22, and the second trace X3 is connected to the second set.
  • the first sub-electrode of the touch electrode 22 in the second direction, and the second trace X5 is connected to the first sub-electrode of the second set of second-direction touch electrodes 22 .
  • Each of the third traces is connected to a second sub-electrode.
  • the third trace X2 is connected to the second sub-electrode of the first set of second-direction touch electrodes 22, and the third trace X4 is connected to the second set.
  • the second sub-electrode of the touch electrode 22 is connected to the second sub-electrode of the second set of second-direction touch electrodes 22 .
  • the first touch portion and the second touch portion are electrically connected through the first connecting portion, so that the first touch portion and the second touch portion are connected by a single trace. Therefore, the number of traces can be reduced, so that the space for accommodating the traces in the touch sensor can be reduced, whereby the effective touch area of the touch screen in the touch sensor can be increased, and a narrow border can be realized.
  • the second sub-electrode since the first sub-electrode and the second sub-electrode are alternately disposed, and the projection of the third touch portion of the first sub-electrode in the plane of the touch electrode in the first direction intersects only the first touch portion, the second The projection of the fourth touch portion of the sub-electrode in the plane of the touch electrode in the first direction intersects only the second touch portion, thereby ensuring that the touch sensor has unique coordinates in each position. value.
  • the embodiment of the present application further provides a touch device, which may include a touch chip and a touch sensor provided by any of the above embodiments, wherein the touch chip and the touch sensor pass Wire connection.
  • the touch device includes a touch chip, and the touch chip is connected to the touch sensor through a first trace, a second trace, and a third trace drawn from the touch sensor.
  • the first direction touch electrode in the touch sensor will be connected to the first trace through the first connection portion of the touch sensor.
  • the capacitance at the touch point will change, first The trace, the second trace, and the third trace input the change amount of the capacitor into the touch chip, and the touch chip can identify the touched position information on the touch sensor according to the capacitance change amount.
  • touch chip and other surrounding circuits in the touch device are not limited.
  • the touch screen in the touch device in the embodiment of the present application may adopt a color filter such as a glass and glass (GG) structure, a glass and a film (GF), and a touch screen embedded in the display screen.
  • a color filter such as a glass and glass (GG) structure, a glass and a film (GF), and a touch screen embedded in the display screen.
  • GG glass and glass
  • GF glass and a film
  • touch screen embedded in the display screen a structure between a sheet substrate and a polarizer or a single glass sensor (OGS), etc., wherein the cover plate of the GF structure is glass, and the conductive layer is a film, and the specific structure of the touch screen in the touch device
  • OGS polarizer or a single glass sensor
  • the embodiment of the present application further provides an electronic terminal, where the electronic terminal includes the touch device provided by any of the above embodiments.
  • the electronic terminal can be a liquid crystal panel, an electronic paper, an Organic Light-Emitting Diode (OLED) panel, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, a wearable device, or Any product or component that has a display function, such as home appliances.
  • OLED Organic Light-Emitting Diode

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Abstract

本申请提供一种触摸传感器、触控装置和电子终端，该触摸传感器包括若干个第一方向触控电极和若干组第二方向触控电极；每个第一方向触控电极包括第一触控部、位于第一触控部下方的第二触控部、及电连接第一触控部及第二触控部的第一连接部；每组第二方向触控电极包括第一子电极及与第一子电极交错设置的第二子电极；每个第一子电极包括若干个在第一方向触控电极所在平面的投影只与第一触控部交叉的第三触控部、及电连接若干个第三触控部的第二连接部；每个第二子电极包括若干个在第一方向触控电极所在平面的投影只与第二触控部交叉的第四触控部、及电连接若干个第四触控部的第三连接部。本申请可以提高触摸传感器中的有效触摸面积。

Description

触摸传感器、触控装置和电子终端 技术领域
本申请实施例涉及触摸检测技术，尤其涉及一种触摸传感器、触控装置和电子终端。
背景技术
触摸传感器是一种应用越来越广泛的外部输入设备，通过电子笔轻触或手指触摸该触摸传感器就能实现输入，使人机交互更为直接，具有简单、快捷和人性化等特点。随着智能手机、平板电脑以及导航系统等电子产品大屏化发展趋势日益显著，相应的触摸传感器向大尺寸方向发展的趋势也日益明显。
图1为现有技术中触摸传感器的电极走线示意图，如图1所示，现有技术中触摸传感器中的电极采用横竖交叉的阵列式方法，即触摸传感器包括竖方向电极11和横方向电极12，两者可以设置在不同的玻璃(glass)或不同的透明塑料(film)介质上，或者，竖方向电极11和横方向电极12可以通过搭桥方式设置在同一层glass或同一层film介质上。其中，走线X1、X2和X3分别连接竖方向电极11，走线Y1、Y2、Y3和Y4分别连接横方向电极12；通过将上述各走线引入到触控芯片中，从而触控芯片可以根据走线传输的触摸信号识别触摸传感器上被触碰的位置信息。
但是，上述的触摸传感器中的电极走线数量较多，这样，在触摸传感器中就需要较大的空间来容纳这些走线，从而降低了触摸传感器的有效触摸面积。
发明内容
本申请实施例提供一种触摸传感器、触控装置和电子终端，以解决现有技术中触摸传感器的有效触摸面积较低的技术问题。
第一方面，本申请实施例提供一种触摸传感器，该触摸传感器包括若干个第一方向触控电极和若干组第二方向触控电极；
每个所述第一方向触控电极包括：沿第一方向延伸的第一触控部、沿第一方向延伸且位于所述第一触控部的下方的第二触控部、及电连接所述第一触控部及所述第二触控部的第一连接部；
每组所述第二方向触控电极包括：沿第二方向延伸的第一子电极及沿第二方向延伸且与所述第一子电极交错设置的第二子电极；
每个所述第一子电极包括：若干个沿第二方向延伸且在每个所述第一方向触控电极所在平面的投影只与所述第一触控部交叉的第三触控部、及电连接所述若干个第三触控部的第二连接部；
每个所述第二子电极包括：若干个沿第二方向延伸且在每个所述第一方向触控电极所在平面的投影只与所述第二触控部交叉的第四触控部、及电连接所述若干个第四触控部的第三连接部。
可选地，每个所述第三触控部均位于相邻两个所述第四触控部之间。
可选地，所述第二连接部位于所述第四触控部的侧方，所述第三连接部位于所述第三触控部的侧方。
可选地，所述第一方向触控电极和所述第二方向触控电极设置在不同的基材上；或者，所述第一方向触控电极和所述第二方向触控电极设置在同一基材上。
可选地，所述第一触控部、所述第二触控部、所述第三触控部或所述第四触控部为王字型或工字型。
可选地，还包括若干第一走线、若干第二走线和若干第三走线；
每个第一走线均对应连接一个所述第一方向触控电极，每个第二走线均对应连接一个所述第一子电极，每个第三走线均对应连接一个所述第二子电极。
第二方面，本申请实施例提供一种触控装置，包括触控芯片和如第一方面所述的触摸传感器，所述触控芯片和所述触摸传感器通过走线连接。
可选地，所述触摸传感器中第一方向触控电极通过所述触摸传感器中的第一连接部连接所述走线。
第三方面，本申请实施例提供一种电子终端，包括如第二方面所述的触控装置。
本申请实施例提供的触摸传感器、触控装置和电子终端，包括若干个第 一方向触控电极和若干组第二方向触控电极；每个第一方向触控电极包括：沿第一方向延伸的第一触控部、沿第一方向延伸且位于第一触控部的下方的第二触控部、及电连接第一触控部及第二触控部的第一连接部；每组第二方向触控电极包括：沿第二方向延伸的第一子电极及沿第二方向延伸且与第一子电极交错设置的第二子电极；每个第一子电极包括：若干个沿第二方向延伸且在每个第一方向触控电极所在平面的投影只与第一触控部交叉的第三触控部、及电连接若干个第三触控部的第二连接部；每个第二子电极包括：若干个沿第二方向延伸且在每个第一方向触控电极所在平面的投影只与第二触控部交叉的第四触控部、及电连接若干个第四触控部的第三连接部。由于第一触控部和第二触控部通过第一连接部电连接，这样，可以通过一根走线对应连接第一触控部和第二触控部，使得走线的数量可以减少，从而可以减少触摸传感器中用于容纳走线的空间，由此可以增大触摸传感器中触控屏的有效触摸面积，实现窄边框。另外，由于将第一子电极和第二子电极交错设置，且第一子电极中的第三触控部在第一方向触控电极所在平面的投影只与第一触控部交叉，第二子电极中的第四触控部在第一方向触控电极所在平面的投影只与第二触控部交叉，由此可以保证触摸传感器的触控区域中，在每个位置都具有唯一的坐标值。
附图说明
为了更清楚地说明本申请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一简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为现有技术中触摸传感器的电极走线示意图；
图2为本申请实施例提供的一种触摸传感器的一结构示意图；
图3为本申请实施例提供的一种触摸传感器的另一结构示意图；
图4a为图2中AA’的截面示意图；
图4b为图2中BB’的截面示意图；
图5a为图3中CC’的截面示意图；
图5b为图3中DD’的截面示意图；
图6为本申请实施例提供的一种触摸传感器的又一结构示意图；
图7a为图6中EE’的截面示意图；
图7b为图6中FF’的截面示意图；
图7c为图6中GG’的截面示意图；
图8a为图2中第一子电极和第二子电极的一形状示意图；
图8b为图2中第一子电极和第二子电极的另一形状示意图；
图8c为图3中第一子电极和第二子电极部的形状示意图；
图8d为图6中第一子电极和第二子电极部的形状示意图。
附图标记说明：
20：触摸传感器；
11：竖方向电极；
12：横方向电极；
21：第一方向触控电极；
22：第二方向触控电极；
211：第一触控部；
212：第二触控部；
213：第一连接部；
221：第三触控部；
222：第二连接部；
223：第四触控部；
224：第三连接部；
Y1、Y2：第一走线；
X1、X3和X5：第二走线；
X2、X4和X6：第三走线。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获 得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”、“第三”及“第四”等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
目前，比较常用的触摸传感器包括电阻式和电容式，其中，电容式触摸传感器具有高灵敏度、长寿命以及高透光率等优点，其工作原理是：在基板表面设置至少一层透明导电物质以形成触控结构，当导电物体(例如人的手指)触碰电容式触摸传感器的表面时，触摸点处的电容发生改变，根据电容的变化量可以计算出触摸点位置，即坐标值。
电容式触摸传感器包括触控区域和用于放置走线和地线等的边框区域。常见的电容式触摸传感器包括多个沿第一方向延伸的电极和多个沿第二方向延伸的电极，每一沿第一方向延伸的电极和每一沿第二方向延伸的电极均与相应的走线连接，这些走线会与其他部件(例如，柔性印刷电路板(Flexible Printed Circuit，FPC)或触控芯片)连接，从而触控芯片可以根据走线传输的触摸信号识别触摸传感器上被触碰的位置信息。
现有技术中的电容式触摸传感器中的电极走线数量较多，这样，在触摸传感器中就需要较大的空间来容纳这些走线，从而降低了触摸传感器的有效触摸面积。
故而，本申请提供的触摸传感器，旨在解决现有技术的如上技术问题。
如下结合多个实例对本申请实施例提供的触摸传感器进行说明。需要说明的是，为了方便说明，放大或者缩小了触摸传感器结构中不同结构的尺寸，所以本申请图中所示大小和比例并不一定代表实际尺寸，也不反映尺寸的比例关系。
图2为本申请实施例提供的一种触摸传感器的一结构示意图，图3为本申 请实施例提供的一种触摸传感器的另一结构示意图，如图2-图3所示，该触摸传感器20包括若干个第一方向触控电极21和若干组第二方向触控电极22；其中，每个第一方向触控电极21包括沿第一方向延伸的第一触控部211、沿第一方向延伸且位于第一触控部211的下方的第二触控部212、及电连接第一触控部211及第二触控部212的第一连接部213。每组第二方向触控电极22包括沿第二方向延伸的第一子电极及沿第二方向延伸且与第一子电极交错设置的第二子电极，其中，每个第一子电极包括若干个沿第二方向延伸且在每个第一方向触控电极21所在平面的投影只与第一触控部211交叉的第三触控部221、及电连接若干个第三触控部221的第二连接部222；每个第二子电极包括若干个沿第二方向延伸且在每个第一方向触控电极21所在平面的投影只与第二触控部212交叉的第四触控部223、及电连接若干个第四触控部223的第三连接部224。
具体地，第一方向和第二方向可以为任意的方向，只要能满足第三触控部221在第一方向触控电极21所在平面的投影只与第一触控部211交叉，第四触控部223在第一方向触控电极21所在平面的投影只与第二触控部212交叉即可。在一种可能的实现方式中，如图2所示，第一方向可以为横方向，第二方向可以为竖方向，或者，如图3所示，第一方向可以为竖方向，第二方向可以为横方向。本申请实施例中对第一方向和第二方向不做具体地限定。
另外，每个第一方向触控电极21中包括有第一触控部211、位于第一触控部211的下方的第二触控部212、及电连接第一触控部211及第二触控部212的第一连接部213。其中，第二触控部212可以位于第一触控部211的正下方或者位于第一触控部211的斜下方。
另外，上述第一触控部211、第二触控部212、第三触控部221和第四触控部223可以采用各种导体材料，如氧化铟锡(IndiumTinOxide；ITO)或金属网格(metal mesh)等。第一连接部213、第二连接部222和第三连接部224可以采用ITO或金属网格作为导体材料，当然，也可以采用其他的导体材料。
上述结构中，由于在每个第一方向触控电极21中，采用第一连接部213将第一触控部211和第二触控部212连接，这样，采用走线连接第一方向触控电极时，一根走线将可以对应连接第一方向触控电极21中的第一触控部211和第二触控部212，相对于现有技术而言，这种方式可以减少一半的走线数量。 可以理解的是，第一方向触控电极中也可以包括多个沿第一方向延伸的触控部，且这多个触控部之间通过第一连接部电连接，例如：当第一方向触控电极中包含沿第一方向延伸的三个触控部，且这三个触控部通过第一连接部电连接后，这三个触控部将对应同一根走线，相对于现有技术而言，这种方式可以减少三分之二的走线数量。
本领域技术人员可以理解，当第一方向触控电极中包括第一触控部211、第二触控部212，且第一触控部211和第二触控部212通过第一连接部213连接后，为了使得触摸传感器的触控区域中，在每个位置都具有唯一的坐标值，则需要将沿第二方向延伸的第一子电极及沿第二方向延伸的第二子电极交错设置。
在实际应用中，第一子电极中包括有若干个沿第二方向延伸的第三触控部221及电连接该若干个第三触控部221的第二连接部222，第二子电极中包括有若干个沿第二方向延伸的第四触控部223及电连接该若干个第四触控部223的第三连接部224。其中，每个第三触控部221均位于相邻两个第四触控部223之间，同样的，每个第四触控部223均位于相邻两个第三触控部221之间，如图2所示，第二连接部222位于第四触控部223的侧方，第三连接部224位于第三触控部221的侧方，这样，可以保证第一子电极和第二子电极之间不会存在相互重叠的区域。
另外，第三触控部221在每个第一方向触控电极21所在平面的投影只与第一触控部211交叉，第四触控部223在每个第一方向触控电极21所在平面的投影只与第二触控部212交叉，以实现触摸传感器的触控区域中，在每个位置都具有唯一的坐标值。
值得注意的是，每组第二方向触控电极22中包括的沿第二方向延伸的子电极的数量，与每个第一方向触控电极21中包括的触控部的数量有关。例如：当第一方向触控电极21中包括n个沿第一方向延伸的触控部时，每组第二方向触控电极22中将包括n个沿第二方向延伸的子电极，其中，n为大于或等于2的整数，由此可以保证触摸传感器的触控区域中，在每个位置都具有唯一的坐标值。
需要进行说明的是，当每组第二方向触控电极中包括沿第二方向延伸的多个子电极时，各子电极之间交错设置，且各子电极中的触控部的放置方式 与只有两个沿第二方向延伸的子电极中各触控部的放置方式类似，此处不再赘述。
本申请实施例提供的触摸传感器，由于第一触控部和第二触控部通过第一连接部电连接，这样，可以通过一根走线对应连接第一触控部和第二触控部，使得走线的数量可以减少，从而可以减少触摸传感器中用于容纳走线的空间，由此可以增大触摸传感器中触控屏的有效触摸面积，实现窄边框。另外，由于将第一子电极和第二子电极交错设置，且第一子电极中的第三触控部在第一方向触控电极所在平面的投影只与第一触控部交叉，第二子电极中的第四触控部在第一方向触控电极所在平面的投影只与第二触控部交叉，由此可以保证触摸传感器的触控区域中，在每个位置都具有唯一的坐标值。
可选地，第一方向触控电极21和第二方向触控电极22设置在不同的基材上。
具体地，图4a为图2中AA’的截面示意图，图4b为图2中BB’的截面示意图，如图4a-图4b所示，第一方向触控电极21设置在第一基材上，第二方向触控电极22设置在第二基材上，即第一方向触控电极21中的第一触控部211和第二触控部212与第二方向触控电极22中第一子电极的第三触控部221和第二方向触控电极22中第二子电极的第四触控部223分别镀在不同的基材上。
图5a为图3中CC’的截面示意图，图5b为图3中DD’的截面示意图，如图5a-图5b所示，第一方向触控电极21设置在第二基材上，第二方向触控电极22设置在第一基材上，即第一方向触控电极21中的第一触控部211和第二触控部212与第二方向触控电极22中第一子电极的第三触控部221和第二方向触控电极22中第二子电极的第四触控部223分别镀在不同的基材上。可以理解的是，用于电连接各第三触控部221的第二连接部222将与第二触控部212位于不同的基材上，用于电连接各第四触控部223的第三连接部224将与第一触控部211位于不同的基材上。
另外，第一基材和第二基材的材料例如可以为玻璃(Glass)或者透明塑料(Film)。当然，第一基材和第二基材还可以为其他的材料，本实施例对此不作限制。
可选地，第一方向触控电极21和第二方向触控电极22设置在同一基材上。
具体地，图6为本申请实施例提供的一种触摸传感器的又一结构示意图， 图7a为图6中EE’的截面示意图，图7b为图6中FF’的截面示意图，图7c为图6中GG’的截面示意图，如图6-图7c所示，可以将第一方向触控电极21和第二方向触控电极22设置在第三基材上，此时，在第一方向电极21和第二方向电极22的各触控部的交叉位置处，可以通过搭桥方式连接。
例如：在第一触控部211与第三触控部221的交叉位置处，第一触控部211断开，并通过搭桥方式将断开的第一触控部211连接，当然，在交叉位置处，也可以是第三触控部221断开，并通过搭桥方式将断开的第三触控部221连接。
同样的，在第二触控部212与第四触控部223的交叉位置处，将第二触控部212断开，并通过搭桥方式将断开的第二触控部212连接，当然，在交叉位置处，也可以是将第四触控部223断开，并通过搭桥方式将断开的第四触控部223连接。
其中，搭桥包括桥接线和绝缘层，该绝缘层位于桥接线与第一方向触控电极21和第二方向触控电极22所在的基材之间。另外，桥接线的材料可以为金属，例如铝、铝合金或铜合金等。
在一种应用中，前述的第一触控部、第二触控部、第三触控部或第四触控部中可以包括王字型或工字型的图形。另外，还可以在第一触控部、第二触控部、第三触控部或第四触控部上形成矩形、三角形或锯齿形等图形。当然，还可以为其他形状，如圆形或不规则形状等，对于第一触控部、第二触控部、第三触控部或第四触控部的形状，本实施例在此不作限制。
例如，图8a为图2中第一子电极和第二子电极的一形状示意图，图8b为图2中第一子电极和第二子电极的另一形状示意图，图8c为图3中第一子电极和第二子电极部的形状示意图，图8d为图6中第一子电极和第二子电极部的形状示意图，如图8a-图8d所示，可以在第三触控部221和第四触控部223上制作任意的形状，如“王”字形、“工”字形，或者形成矩形、三角形或锯齿形等。当然，也可以在第一触控部或第二触控部上形成任意的形状。由于可以在第一触控部、第二触控部、第三触控部或第四触控部上制作任意的形状，这样可以提高触摸传感器的触摸性能。在实际应用中，可以根据触摸传感器的材料、结构或触摸传感器的使用环境等的不同，可以在各触控部上制作不同的形状，从而可以有不同的触摸效果。
在一种可能的应用中，触摸传感器还包括若干第一走线、若干第二走线 和若干第三走线；其中，每个第一走线均对应连接一个第一方向触控电极，每个第二走线均对应连接一个第一子电极，每个第三走线均对应连接一个第二子电极。
如图2所示，触摸传感器中还包括多个第一走线Y1和Y2、多个第二走线X1、X3和X5以及多个第三走线X2、X4和X6，其中，每个第一走线均对应连接一个第一方向触控电极，且第一方向触控电极21通过第一连接部213连接第一走线。如第一走线Y1对应连接第一个第一方向触控电极21，第一走线Y2对应连接第二个第一方向触控电极21。每个第二走线均对应连接一个第一子电极，如第二走线X1对应连接第一组第二方向触控电极22中的第一子电极，第二走线X3对应连接第二组第二方向触控电极22中的第一子电极，第二走线X5对应连接第三组第二方向触控电极22中的第一子电极。每个第三走线均对应连接一个第二子电极，如第三走线X2对应连接第一组第二方向触控电极22中的第二子电极，第三走线X4对应连接第二组第二方向触控电极22中的第二子电极，第三走线X6对应连接第三组第二方向触控电极22中的第二子电极。
本申请实施例提供的触摸传感器，由于第一触控部和第二触控部通过第一连接部电连接，这样，可以通过一根走线对应连接第一触控部和第二触控部，使得走线的数量可以减少，从而可以减少触摸传感器中用于容纳走线的空间，由此可以增大触摸传感器中触控屏的有效触摸面积，实现窄边框。另外，由于将第一子电极和第二子电极交错设置，且第一子电极中的第三触控部在第一方向触控电极所在平面的投影只与第一触控部交叉，第二子电极中的第四触控部在第一方向触控电极所在平面的投影只与第二触控部交叉，由此可以保证触摸传感器的触控区域中，在每个位置都具有唯一的坐标值。
在上述各实施例的基础上，本申请实施例还提供一种触控装置，该触控装置可以包括触控芯片和如上任一实施例提供的触摸传感器，其中，触控芯片和触摸传感器通过走线连接。
具体地，触控装置中包括有触控芯片，触控芯片通过从触摸传感器中引出的第一走线、第二走线和第三走线和该触摸传感器连接。特别的，触摸传感器中第一方向触控电极将通过触摸传感器中的第一连接部连接第一走线。当通过电子笔或手指触碰触摸传感器后，触碰点处的电容将发生改变，第一 走线、第二走线和第三走线会将电容的变化量输入至触控芯片中，触控芯片将可以根据该电容变化量识别触摸传感器上被触碰的位置信息。
需要进行说明的是，本实施例中对触控芯片以及触控装置中的其他周围电路不作限制。
可选地，本申请实施例中触控装置中的触摸屏可以采用如双层玻璃(glass and glass；GG)结构、玻璃和薄膜(glass and film；GF)、触摸屏嵌入到显示屏的彩色滤光片基板和偏光片之间的结构或者单层玻璃的结构(one glass sensor；OGS)等等，其中，GF结构中盖板为玻璃，导电层为薄膜，对于触控装置中的触摸屏的具体结构，本申请实施例在此不作限制。
在上述各实施例的基础上，本申请实施例还提供一种电子终端，其中，该电子终端包括如上任一实施例提供的触控装置。
其中，该电子终端可以为液晶面板、电子纸、有机发光二极管(Organic Light-Emitting Diode，OLED)面板、手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪、可穿戴设备或家电设备等任何具有显示功能的产品或部件。
最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。

Claims (9)

  1. 一种触摸传感器，其特征在于，包括：若干个第一方向触控电极和若干组第二方向触控电极；
    每个所述第一方向触控电极包括：沿第一方向延伸的第一触控部、沿第一方向延伸且位于所述第一触控部的下方的第二触控部、及电连接所述第一触控部及所述第二触控部的第一连接部；
    每组所述第二方向触控电极包括：沿第二方向延伸的第一子电极及沿第二方向延伸且与所述第一子电极交错设置的第二子电极；
    每个所述第一子电极包括：若干个沿第二方向延伸且在每个所述第一方向触控电极所在平面的投影只与所述第一触控部交叉的第三触控部、及电连接所述若干个第三触控部的第二连接部；
    每个所述第二子电极包括：若干个沿第二方向延伸且在每个所述第一方向触控电极所在平面的投影只与所述第二触控部交叉的第四触控部、及电连接所述若干个第四触控部的第三连接部。
  2. 根据权利要求1所述的触摸传感器，其特征在于，每个所述第三触控部均位于相邻两个所述第四触控部之间。
  3. 根据权利要求2所述的触摸传感器，其特征在于，所述第二连接部位于所述第四触控部的侧方，所述第三连接部位于所述第三触控部的侧方。
  4. 根据权利要求1-3任一所述的触摸传感器，其特征在于，所述第一方向触控电极和所述第二方向触控电极设置在不同的基材上；或者，所述第一方向触控电极和所述第二方向触控电极设置在同一基材上。
  5. 根据权利要求1-3任一项所述的触摸传感器，其特征在于，所述第一触控部、所述第二触控部、所述第三触控部或所述第四触控部中包括王字型或工字型图形。
  6. 根据权利要求1-3任一项所述的触摸传感器，其特征在于，还包括若干第一走线、若干第二走线和若干第三走线；
    每个所述第一走线均对应连接一个所述第一方向触控电极，每个所述第二走线均对应连接一个所述第一子电极，每个所述第三走线均对应连接一个所述第二子电极。
  7. 一种触控装置，其特征在于，包括触控芯片和如权利要求1-6任一项 所述的触摸传感器，所述触控芯片和所述触摸传感器通过走线连接。
  8. 根据权利要求7所述的触控装置，其特征在于，所述触摸传感器中第一方向触控电极通过所述触摸传感器中的第一连接部连接所述走线。
  9. 一种电子终端，其特征在于，包括如权利要求7或8所述的触控装置。
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