WO2021227101A1 - 触控面板和显示装置 - Google Patents

触控面板和显示装置 Download PDF

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Publication number
WO2021227101A1
WO2021227101A1 PCT/CN2020/091205 CN2020091205W WO2021227101A1 WO 2021227101 A1 WO2021227101 A1 WO 2021227101A1 CN 2020091205 W CN2020091205 W CN 2020091205W WO 2021227101 A1 WO2021227101 A1 WO 2021227101A1
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WO
WIPO (PCT)
Prior art keywords
electrodes
area
touch panel
gap
width
Prior art date
Application number
PCT/CN2020/091205
Other languages
English (en)
French (fr)
Inventor
黄东晨
郑净远
Original Assignee
惠州市华星光电技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 惠州市华星光电技术有限公司 filed Critical 惠州市华星光电技术有限公司
Priority to US16/962,520 priority Critical patent/US11906834B2/en
Publication of WO2021227101A1 publication Critical patent/WO2021227101A1/zh

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/13338—Input devices, e.g. touch panels
    • 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
    • G06F3/0412—Digitisers structurally integrated in a display
    • 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
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • 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
    • G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06F2203/04111—Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate

Definitions

  • This application relates to the field of display technology, in particular to the field of display panel manufacturing technology, in particular to touch panels and display devices.
  • the touch display technology allows users to touch the icons or texts on the touch screen with their fingers to realize the corresponding host operations on the touch screen, get rid of keyboard and mouse operations, and make human-computer interaction more straightforward.
  • the area that needs to be touched in actual operation is mainly concentrated in the center area of the touch screen.
  • the touch volume in the edge area of the touch screen is much smaller than the touch volume in the center area of the touch screen, or touch
  • the touch accuracy requirement of the edge area of the screen is much smaller than the touch accuracy requirement of the center area of the touch screen;
  • the density of touch channels in the edge area where the touch volume is small or the touch accuracy requirement is small is the same as the density of the touch channels in the center area where the touch volume is large or the touch accuracy requirement is large.
  • the waste of touch channels in the edge area increases unnecessary costs.
  • the embodiments of the present application provide a touch panel and a display device.
  • the arrangement density of a plurality of first electrodes located in a first area is set to be greater than that of a plurality of second electrodes located in a second area to solve the existing problem.
  • the touch channel utilization rate in the edge area of the touch panel is low, thereby increasing the problem of unnecessary cost.
  • An embodiment of the present application provides a touch display panel, the touch panel includes a first area and a second area, and the touch panel further includes:
  • a plurality of first electrodes, the plurality of first electrodes are located in the first region, and the plurality of first electrodes are arranged in parallel;
  • a plurality of second electrodes the plurality of second electrodes are located in the second region, the plurality of second electrodes are arranged in parallel, and the arrangement density of the plurality of first electrodes is greater than that of the plurality of second electrodes
  • the arrangement density, the sizes of the plurality of first electrodes and the plurality of second electrodes are the same, there is a first gap between two adjacent first electrodes in the plurality of first electrodes, and the plurality of There is a second gap between two adjacent second electrodes in the second electrode, and the width of the first gap is smaller than the width of the second gap;
  • the width of the second gap far from the first area is greater than the width of the second gap near the first area, and the width of the first gap near the second area is greater than the width of the first gap far away from the second area.
  • the width of the gap, or each of the first gaps has the same width.
  • the first area includes a central area of the touch panel, and the second area is arranged around the first area.
  • the touch panel further includes:
  • a plurality of third electrodes are located in the first region, the plurality of third electrodes are arranged to intersect the plurality of first electrodes, and the plurality of third electrodes are intersected with the plurality of first electrodes.
  • the first electrodes are insulated from each other.
  • the arrangement density of the plurality of third electrodes is equal to the arrangement density of the plurality of first electrodes.
  • the plurality of third electrodes and the plurality of first electrodes are arranged in the same layer, or the plurality of third electrodes and the plurality of first electrodes are arranged in different layers.
  • An embodiment of the present application further provides a touch display panel, the touch panel includes a first area and a second area, and the touch panel further includes:
  • a plurality of first electrodes, the plurality of first electrodes are located in the first area;
  • a plurality of second electrodes, the plurality of second electrodes are located in the second region, and the arrangement density of the plurality of first electrodes is greater than the arrangement density of the plurality of second electrodes.
  • the first area includes a central area of the touch panel, and the second area is arranged around the first area.
  • the sizes of the plurality of first electrodes and the plurality of second electrodes are the same;
  • the plurality of first electrodes are arranged in parallel, the plurality of second electrodes are arranged in parallel, there is a first gap between two adjacent first electrodes among the plurality of first electrodes, and the plurality of second electrodes There is a second gap between two adjacent second electrodes in, and the width of the first gap is smaller than the width of the second gap.
  • the width of the second gap far from the first area is greater than the width of the second gap close to the first area.
  • the width of the first gap close to the second area is greater than the width of the first gap away from the second area.
  • each of the second gaps has the same width.
  • each of the first gaps has the same width.
  • the touch panel further includes:
  • a plurality of third electrodes are located in the first region, the plurality of third electrodes are arranged to intersect the plurality of first electrodes, and the plurality of third electrodes are intersected with the plurality of first electrodes.
  • the first electrodes are insulated from each other.
  • the arrangement density of the plurality of third electrodes is equal to the arrangement density of the plurality of first electrodes.
  • the plurality of third electrodes and the plurality of first electrodes are arranged in the same layer, or the plurality of third electrodes and the plurality of first electrodes are arranged in different layers.
  • the embodiments of the present application also provide a display device, which includes a color filter substrate, a polarizer, a cover plate, and a touch panel;
  • the polarizer is arranged between the color filter substrate and the cover plate;
  • the touch panel is arranged on the side of the polarizer close to the cover, or the touch panel is arranged between the polarizer and the color filter substrate, or the touch panel is arranged on the On the side of the color filter substrate away from the polarizer, the touch panel includes a first area and a second area, and the touch panel includes:
  • a plurality of first electrodes, the plurality of first electrodes are located in the first area;
  • a plurality of second electrodes, the plurality of second electrodes are located in the second region, and the arrangement density of the plurality of first electrodes is greater than the arrangement density of the plurality of second electrodes.
  • the touch display panel includes a plurality of first electrodes located in a first area and a plurality of second electrodes located in a second area, combining the first area and the second area
  • the arrangement density of the first electrodes is set to be greater than the arrangement density of the second electrodes, which saves the number of the second electrodes in the second area, and satisfies the requirements of the touch panel.
  • the utilization rate of the second electrode is improved and the cost of the touch panel is reduced.
  • FIG. 1 is a schematic top view of a first touch panel provided by an embodiment of the application.
  • FIG. 2 is a schematic top view of a second touch panel provided by an embodiment of the application.
  • FIG. 3 is a schematic top view of a third touch panel provided by an embodiment of the application.
  • FIG. 4 is a schematic top view of a fourth touch panel provided by an embodiment of the application.
  • FIG. 5 is a schematic cross-sectional view of a touch panel provided by an embodiment of the application.
  • FIG. 6 is a schematic cross-sectional view of another touch panel provided by an embodiment of the application.
  • FIG. 7 is a schematic top view of a fifth touch panel provided by an embodiment of the application.
  • FIG. 8 is a schematic cross-sectional view of a display device provided by an embodiment of the application.
  • the embodiments of the present application provide a touch panel, and the touch panel includes but is not limited to the following embodiments and a combination of the following embodiments.
  • the touch panel 00 includes a first area 01 and a second area 02, and the touch panel 00 further includes a plurality of first electrodes 100, so The plurality of first electrodes 100 are located in the first area 01; the plurality of second electrodes 200 are located in the second area 02, the arrangement density of the plurality of first electrodes 100 It is greater than the arrangement density of the plurality of second electrodes 200.
  • the first area 01 includes the central area of the touch panel 00, and the second area 02 is arranged around the first area 01.
  • the second area 02 is set at the periphery of the first area 01, or the second area 02 is set at the periphery of the first area 01.
  • Part of the area when the first area 01 is square, the second area 02 is set on the periphery of the second area 02, or the second area 02 is set on one side of the second area 02 .
  • the first area 01 is square, and the second area 02 is provided on the periphery of the second area 02 as an example for description.
  • the central area can be understood as an area with a certain size located in the center of the touch panel 00, which is intended to emphasize that the first area 01 is closer to the second area 02 than the second area 02.
  • the touch accuracy requirement of the second area 02 is less than the touch accuracy of the first area 01, so the arrangement density of the plurality of second electrodes 200 in the second area 02 may be less than
  • the arrangement density of the plurality of first electrodes 100 in the first area 01 reasonably reduces the arrangement density of the plurality of second electrodes 200, as long as the touch accuracy requirements of the second area 02 are met. Yes, the utilization rate of the multiple second electrodes 200 in the second region 02 can be improved and the cost can be reduced.
  • the sizes of the plurality of first electrodes 100 and the plurality of second electrodes 200 are the same; the plurality of first electrodes 100 are arranged in parallel, and the plurality of second electrodes The electrodes 200 are arranged in parallel, and there is a first gap 03 between two adjacent first electrodes 100 among the plurality of first electrodes 100, and one of the two adjacent second electrodes 200 among the plurality of second electrodes 200 There is a second gap 04 therebetween, and the width of the first gap 03 is smaller than the width of the second gap 04.
  • the width of the first gap 03 is smaller than the width of the second gap 04, that is,
  • the plurality of second electrodes 200 are relatively sparsely arranged relative to the plurality of first electrodes 100, and the number of the plurality of second electrodes 200 in the second region 02 can be appropriately reduced to satisfy the requirements When the touch accuracy of the second area 02 is required, the number of the plurality of second electrodes 200 is reduced.
  • the size of the plurality of second electrodes 200 may be slightly larger than the size of the plurality of first electrodes 100 to ensure that all The touch accuracy requirements of the second area 02 are described.
  • the arrangement direction of the plurality of first electrodes 100 and the arrangement direction of the plurality of second electrodes 200 may be the same or different.
  • the plurality of first electrodes 100 and the plurality of second electrodes 200 may be transferred Row touch signal or column touch signal; when the arrangement direction of the plurality of first electrodes 100 and the arrangement direction of the plurality of second electrodes 200 are different, the plurality of first electrodes 100 and the The plurality of second electrodes 200 can respectively transmit row touch signals and column touch signals.
  • the width of the second gap 04 far from the first area 01 is greater than the width of the second gap 04 close to the first area 01. It is understandable that since the touch accuracy requirement of the second area 02 is less than the touch accuracy requirement of the first area 01, further, the touch accuracy requirements of different positions in the second area 02 and the position and The distance of the first area 01 is negatively correlated, that is, the position in the second area 02 that is farther from the first area 01 corresponds to the smaller the touch accuracy requirement, so the distance from the first area 01 is smaller.
  • the greater the width of the second gap 04 in the far position that is, the width of the second gap 04 farther from the first area 01 can be appropriately increased, and the number of the plurality of second electrodes 200 can be appropriately reduced.
  • the width of the first gap 03 close to the second area 02 is greater than the width of the first gap 03 far away from the second area 02. It is understandable that since the touch accuracy requirement of the second area 02 is smaller than the touch accuracy requirement of the first area 01, further, the touch accuracy requirements of different positions in the first area 01 and the position and The distance of the second area 02 is positively correlated, that is, the position in the first area 01 that is closer to the second area 02 corresponds to the smaller the touch accuracy requirement, so the closer to the second area 02 is The larger the width of the first gap 04 in the position of, the width of the first gap 03 close to the second area 02 can be appropriately increased to appropriately reduce the number of the plurality of first electrodes 100.
  • each of the second gaps 04 has the same width. It is understandable that under the premise that the arrangement density of the plurality of first electrodes 100 is greater than the arrangement density of the plurality of second electrodes 200, if the arrangement density of each of the second regions 02 is The width of the gap 04 is set equal, that is, the plurality of second electrodes 200 are arranged at equal intervals, then the touch accuracy of any position in the second area 02 is equal, and the touch accuracy in the second area 02 is improved. Uniformity of control accuracy.
  • the width of each first gap 03 in the first area 01 may be set to be the same, that is, the multiple If the first electrodes 100 are arranged at equal intervals, the touch accuracy of any position in the first area 01 is equal, which improves the uniformity of touch accuracy in the first area 01.
  • the touch panel 00 further includes: a plurality of third electrodes 300, the plurality of third electrodes 300 are located in the first area 01, and the plurality of third electrodes 300 The electrode 300 is arranged to intersect the plurality of first electrodes 100, and the plurality of third electrodes 300 and the plurality of first electrodes 100 are insulated from each other.
  • each of the third electrodes 300 and each of the first electrodes 100 can form a capacitance, and when any intersection position is pressed to change the corresponding capacitance value, the touch panel 00 can Recognize the coordinates of the point to give feedback on this.
  • an insulating block may be disposed at the intersection of the plurality of third electrodes 300 and the plurality of first electrodes 100, and the insulating block is disposed between the corresponding third electrode 300 and the corresponding first electrode 100, Avoid electrical connection between the plurality of third electrodes 300 and the plurality of first electrodes 100, and prevent the third electrodes 300 and the first electrodes 100 from being connected when the touch panel 00 is pressed.
  • the contact at the intersection position causes a short circuit
  • the constituent material of the insulating block includes at least one of silicon nitride and silicon oxynitride.
  • an interface layer is provided on the side of the insulating block close to the third electrode 300 and the side close to the first electrode 100, and the constituent material of the interface layer includes silicon oxide or amorphous silicon
  • the interface layer can improve the adhesion between the insulating block and the first electrode 100 and between the insulating block and the second electrode 200.
  • the plurality of third electrodes 300 and the plurality of first electrodes 100 are arranged in the same layer.
  • the first electrode 100 includes at least two first electrode parts 101, the two first electrode parts 101 and the third electrode 300 are arranged in the same layer, and the two first electrode parts 101 are arranged in the same layer.
  • the first electrode 100 further includes a bridge portion provided on one side of the third electrode 300, the bridge portion includes a bridge body 102 and two bridge ends 103, so The bridge body 102 is arranged between the two first electrode parts 101, the two bridge ends 103 are respectively arranged on both sides of the bridge body 102, and the two bridge ends 103 are respectively connected to the bridge body 102 And the two first electrode parts 101. Further, an insulating block 104 may be provided between the third electrode 300 and the corresponding bridge portion to insulate the third electrode 300 and the corresponding bridge portion.
  • the plurality of third electrodes 300 and the plurality of first electrodes 100 are arranged in different layers.
  • the film layer formed by the plurality of third electrodes 300 may be located above the film layer formed by the plurality of first electrodes 100, that is, the plurality of third electrodes 300 are all located on the plurality of first electrodes. 100 on the same side.
  • an insulating block 104 can be provided between the third electrode 300 and the corresponding bridge portion to insulate the third electrode 300 and the corresponding first electrode 100, wherein the insulating block 104 can be connected to
  • the third electrodes 300 are arranged opposite to each other, or the insulating block 104 may form a complete film layer between the plurality of third electrodes 300 and the plurality of first electrodes 100 to avoid the third electrode 300
  • the need for alignment with the insulating block 104 reduces the need for accuracy.
  • the arrangement density of the plurality of third electrodes 300 is equal to the arrangement density of the plurality of first electrodes 100. It is understandable that since the plurality of third electrodes 300 and the plurality of first electrodes 100 are respectively arranged in different directions, when the arrangement density of the plurality of third electrodes 300 and the plurality of first electrodes 300 are When the arrangement density of the electrodes 100 is equal, the touch accuracy in the different directions can be made equal, so that the intersecting positions of the plurality of third electrodes 300 and the plurality of first electrodes 100 are more evenly distributed, which improves The uniformity of touch accuracy in the first area 01 is achieved.
  • the touch panel 00 further includes: a plurality of fourth electrodes 400, the plurality of fourth electrodes 400 are located in the second area 02, and the plurality of fourth electrodes 400
  • the electrode 400 is arranged to intersect the plurality of second electrodes 200, and the plurality of fourth electrodes 400 and the plurality of second electrodes 200 are insulated from each other.
  • an insulating block may be disposed at the intersection of the plurality of fourth electrodes 400 and the plurality of second electrodes 200, and the insulating block is disposed between the corresponding third electrode 300 and the corresponding second electrode 200, Avoid electrical connection between the plurality of fourth electrodes 400 and the plurality of second electrodes 200, and prevent the fourth electrode 400 and the second electrode 200 from being connected to each other when the touch panel 00 is pressed.
  • the contact at the intersection position causes a short circuit
  • the constituent material of the insulating block includes at least one of silicon nitride and silicon oxynitride.
  • the plurality of fourth electrodes 400 and the plurality of second electrodes 200 are arranged in the same layer, or the plurality of fourth electrodes 400 and the plurality of second electrodes 200 are arranged in different layers.
  • the arrangement density of the plurality of fourth electrodes 400 is equal to the arrangement density of the plurality of second electrodes 200.
  • the arrangement of the plurality of fourth electrodes 400 may refer to the arrangement of the plurality of third electrodes 300, and the mutual arrangement relationship between the fourth electrodes 400 and the second electrodes 200 may refer to The mutual arrangement relationship of the third electrode 300 and the first electrode 100.
  • the display device 000 includes a color filter substrate 501, a polarizer 502, a cover plate 503, and a touch panel 00; the polarizer 502 is provided on the color filter substrate 501 and the cover plate 503; the touch panel 00 is arranged on the side of the polarizer 502 close to the cover plate 503, or the touch panel 00 is arranged on the polarizer 502 and the Between the color filter substrates 501, or the touch panel 00 is provided on the side of the color filter substrate 501 away from the polarizer 502.
  • the touch panel 00 is provided on the side of the polarizer 502 close to the cover 503 to form an external display device 000 as an example for description.
  • the touch panel 00 includes a first area 01 and a second area 02
  • the touch panel 100 includes a plurality of first electrodes 100, the plurality of first electrodes 100 are located in the first area 01;
  • the second electrode 200, the plurality of second electrodes 200 are located in the second region 02, and the arrangement density of the plurality of first electrodes 100 is greater than the arrangement density of the plurality of second electrodes 200.
  • the touch panel 00 further includes: a plurality of third electrodes 300, the plurality of third electrodes 300 are located in the first area 01, and the plurality of third electrodes 300 are connected to each other.
  • the plurality of first electrodes 100 are arranged to intersect, and the plurality of third electrodes 300 and the plurality of first electrodes 100 are insulated from each other;
  • the touch panel 00 further includes: a plurality of fourth electrodes 400, so The plurality of fourth electrodes 400 are located in the second region 02, the plurality of fourth electrodes 400 intersect with the plurality of second electrodes 200, and the plurality of fourth electrodes 400 intersect with the plurality of second electrodes.
  • the electrodes 200 are insulated from each other.
  • the touch display panel includes a plurality of first electrodes located in a first area and a plurality of second electrodes located in a second area, combining the first area and the second area
  • the arrangement density of the multiple first electrodes is set to be greater than the arrangement density of the multiple second electrodes, which saves the number of the multiple second electrodes in the second area, and does not affect the touch Under the premise of the accuracy of the panel, the utilization rate of the second electrode is improved and the cost of the touch panel is reduced.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Position Input By Displaying (AREA)

Abstract

一种触控面板（00）和显示装置（000），触控面板（00）包括第一区域（01）和第二区域（02），还包括：位于第一区域（01）的多个第一电极（100）和位于第二区域（02）的多个第二电极（200），多个第一电极（100）的排布密度大于多个第二电极（200）的排布密度。

Description

触控面板和显示装置 技术领域
本申请涉及显示技术领域，尤其涉及显示面板制造技术领域，具体涉及触控面板和显示装置。
 背景技术
触摸显示技术可以让使用者用手指轻轻地碰触摸屏上的图符或文字就能实现对触摸屏对应的主机操作，摆脱了键盘和鼠标操作，使人机交互更为直截了当。
对于大尺寸的触摸屏而言，在实际操作中需要进行触控的区域主要集中在触摸屏的中心区域，触控屏的边缘区域的触控量远小于触摸屏的中心区域的触控量，或者触控屏的边缘区域的触控精度需求远小于触摸屏的中心区域的触控精度需求；然而现有技术中的触控屏中的边缘区域和中心区域的触控通道均以同一间距进行排列，使得原本触控量较小或者触控精度需求较小的边缘区域的触控通道的疏密程度和触控量较大或者触控精度需求较大的中心区域的触控通道的疏密程度相同，造成边缘区域的触控通道的浪费，增加了不必要的成本支出。
综上所述，有必要提供可以提高触控通道利用率以及降低成本的触控面板和显示装置。
 技术问题
本申请实施例提供触控面板和显示装置，通过将位于第一区域的多个第一电极的排布密度设置为大于位于第二区域的多个第二电极的排布密度，以解决现有的触控面板的边缘区域中触控通道利用率低，从而增加了不必要的成本的问题。
 技术解决方案
本申请实施例提供一种触控显示面板，所述触控面板包括第一区域和第二区域，所述触控面板还包括：
多个第一电极，所述多个第一电极位于所述第一区域，所述多个第一电极平行设置；
多个第二电极，所述多个第二电极位于所述第二区域，所述多个第二电极平行设置，所述多个第一电极的排布密度大于所述多个第二电极的排布密度，所述多个第一电极和所述多个第二电极的尺寸相同，所述多个第一电极中相邻的两个第一电极之间具有第一间隙，所述多个第二电极中相邻的两个第二电极之间具有第二间隙，所述第一间隙的宽度小于所述第二间隙的宽度；
其中，远离所述第一区域的第二间隙的宽度大于靠近所述第一区域的第二间隙的宽度，靠近所述第二区域的第一间隙的宽度大于远离所述第二区域的第一间隙的宽度，或者每一个所述第一间隙具有相同的宽度。
在一实施例中，所述第一区域包括所述触控面板的中心区域，所述第二区域围绕所述第一区域而设置。
在一实施例中，所述触控面板还包括：
多个第三电极，所述多个第三电极位于所述第一区域，所述多个第三电极与所述多个第一电极相交设置，所述多个第三电极与所述多个第一电极相互绝缘。
在一实施例中，所述多个第三电极的排布密度等于所述多个第一电极的排布密度。
在一实施例中，所述多个第三电极与所述多个第一电极同层设置，或者所述多个第三电极与所述多个第一电极异层设置。
本申请实施例还提供一种触控显示面板，所述触控面板包括第一区域和第二区域，所述触控面板还包括：
多个第一电极，所述多个第一电极位于所述第一区域；
多个第二电极，所述多个第二电极位于所述第二区域，所述多个第一电极的排布密度大于所述多个第二电极的排布密度。
在一实施例中，所述第一区域包括所述触控面板的中心区域，所述第二区域围绕所述第一区域而设置。
在一实施例中，所述多个第一电极和所述多个第二电极的尺寸相同；
所述多个第一电极平行设置，所述多个第二电极平行设置，所述多个第一电极中相邻的两个第一电极之间具有第一间隙，所述多个第二电极中相邻的两个第二电极之间具有第二间隙，所述第一间隙的宽度小于所述第二间隙的宽度。
在一实施例中，远离所述第一区域的第二间隙的宽度大于靠近所述第一区域的第二间隙的宽度。
在一实施例中，靠近所述第二区域的第一间隙的宽度大于远离所述第二区域的第一间隙的宽度。
在一实施例中，每一个所述第二间隙具有相同的宽度。
在一实施例中，每一个所述第一间隙具有相同的宽度。
在一实施例中，所述触控面板还包括：
多个第三电极，所述多个第三电极位于所述第一区域，所述多个第三电极与所述多个第一电极相交设置，所述多个第三电极与所述多个第一电极相互绝缘。
在一实施例中，所述多个第三电极的排布密度等于所述多个第一电极的排布密度。
在一实施例中，所述多个第三电极与所述多个第一电极同层设置，或者所述多个第三电极与所述多个第一电极异层设置。
本申请实施例还提供显示装置，所述显示装置包括彩膜基板、偏光片、盖板和触控面板；
所述偏光片设于所述彩膜基板和所述盖板之间；
所述触控面板设于所述偏光片靠近所述盖板的一侧，或者所述触控面板设于所述偏光片和所述彩膜基板之间，或者所述触控面板设于所述彩膜基板远离所述偏光片的一侧，所述触控面板包括第一区域和第二区域，所述触控面板包括：
多个第一电极，所述多个第一电极位于所述第一区域；
多个第二电极，所述多个第二电极位于所述第二区域，所述多个第一电极的排布密度大于所述多个第二电极的排布密度。
 有益效果
本申请实施例提供的触控面板和显示装置，所述触控显示面板包括位于第一区域的多个第一电极和位于第二区域的多个第二电极，结合第一区域和第二区域的触控精度要求，例如将多个第一电极的排布密度设置为大于多个第二电极的排布密度，节省了第二区域中的多个第二电极的数量，在满足触控面板第二区域触控精度需求的前提下，提高了第二电极的利用率以及降低了触控面板的成本。
 附图说明
下面结合附图，通过对本申请的具体实施方式详细描述，将使本申请的技术方案及其它有益效果显而易见。
图1为本申请实施例提供的第一种触控面板的俯视示意图。
图2为本申请实施例提供的第二种触控面板的俯视示意图。
图3为本申请实施例提供的第三种触控面板的俯视示意图。
图4为本申请实施例提供的第四种触控面板的俯视示意图。
图5为本申请实施例提供的一种触控面板的截面示意图。
图6为本申请实施例提供的又一种触控面板的截面示意图。
图7为本申请实施例提供的第五种触控面板的俯视示意图。
图8为本申请实施例提供的一种显示装置的截面示意图。
 本发明的实施方式
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、连续地描述。显然，所描述的实施例仅仅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。
在本申请的描述中，需要理解的是，术语“远离”、“靠近”、“上”、“行”、“列”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本申请的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在图中，结构相似的单元是以相同标号表示。在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
本申请实施例提供触控面板，所述触控面板包括但不限于以下实施例以及以下实施例的组合。
在一实施例中，如图1-4、7所示，所述触控面板00包括第一区域01和第二区域02，所述触控面板00还包括：多个第一电极100，所述多个第一电极100位于所述第一区域01；多个第二电极200，所述多个第二电极200位于所述第二区域02，所述多个第一电极100的排布密度大于所述多个第二电极200的排布密度。
其中，如图1所示，所述第一区域01包括所述触控面板00的中心区域，所述第二区域02围绕所述第一区域01而设置。例如，当所述第一区域01呈圆形或者椭圆形时，所述第二区域02设于所述第一区域01外围，或者所述第二区域02设于所述第一区域01外围的部分区域；当所述第一区域01呈方形时，所述第二区域02设于所述第二区域02的外围，或者所述第二区域02设于所述第二区域02的其中一侧。图1中仅以所述第一区域01呈方形，且所述第二区域02设于所述第二区域02的外围为例进行说明。需要注意的是，所述中心区域可以理解为位于所述触控面板00中心位置的、具有一定尺寸的区域，意在强调所述第一区域01相对于所述第二区域02更靠近所述触控面板00中心位置，或者强调所述第二区域02相对于所述第一区域01，更靠近所述触控面板00边缘位置。
可以理解的，所述第二区域02的触控精度需求小于所述第一区域01的触控精度，因此所述第二区域02中的所述多个第二电极200的排布密度可以小于所述第一区域01中的所述多个第一电极100的排布密度，合理降低所述多个第二电极200的排布密度，只要满足所述第二区域02的触控精度需求即可，以提高所述第二区域02的多个第二电极200的利用率以及降低了成本。
在一实施例中，如图1所示，所述多个第一电极100和所述多个第二电极200的尺寸相同；所述多个第一电极100平行设置，所述多个第二电极200平行设置，所述多个第一电极100中相邻的两个第一电极100之间具有第一间隙03，所述多个第二电极200中相邻的两个第二电极200之间具有第二间隙04，所述第一间隙03的宽度小于所述第二间隙04的宽度。
可以理解的，当所述多个第一电极100和所述多个第二电极200的尺寸相同时，通过将所述第一间隙03的宽度设置为小于所述第二间隙04的宽度，即所述多个第二电极200相对于所述多个第一电极100而言排布较稀疏，可以适当减少所述第二区域02中所述多个第二电极200的数目，在满足所述第二区域02的触控精度需求的情况下，减少所述多个第二电极200的数目。或者，所述第一间隙03的宽度小于所述第二间隙04的宽度的同时，所述多个第二电极200的尺寸可以稍大于所述多个第一电极100的尺寸，以保证实现所述第二区域02的触控精度需求。
其中，所述多个第一电极100的排布方向和所述多个第二电极200的排布方向可以相同或者不同。例如，当所述多个第一电极100的排布方向和所述多个第二电极200的排布方向相同时，所述多个第一电极100和所述多个第二电极200可以传递行触控信号或者列触控信号；当所述多个第一电极100的排布方向和所述多个第二电极200的排布方向不相同时，所述多个第一电极100和所述多个第二电极200可以分别传递行触控信号和列触控信号。
在一实施例中，如图2所示，远离所述第一区域01的第二间隙04的宽度大于靠近所述第一区域01的第二间隙04的宽度。可以理解的，由于所述第二区域02的触控精度需求小于所述第一区域01的触控精度需求，进一步的，所述第二区域02中不同位置的触控精度需求和该位置与所述第一区域01的距离成负相关，即所述第二区域02中距离所述第一区域01越远的位置对应的触控精度需求越小，因此位于距离所述第一区域01越远的位置中的所述第二间隙04的宽度越大，即可以适当增加远离所述第一区域01的第二间隙04的宽度，适当减少所述多个第二电极200的数目。
在一实施例中，如图3所示，靠近所述第二区域02的第一间隙03的宽度大于远离所述第二区域02的第一间隙03的宽度。可以理解的，由于所述第二区域02的触控精度需求小于所述第一区域01的触控精度需求，进一步的，所述第一区域01中不同位置的触控精度需求和该位置与所述第二区域02的距离成正相关，即所述第一区域01中距离所述第二区域02越近的位置对应的触控精度需求越小，因此位于距离所述第二区域02越近的位置中的所述第一间隙04的宽度越大，即可以适当增加靠近所述第二区域02的第一间隙03的宽度，以适当减少所述多个第一电极100的数目。
在一实施例中，如图1所示，每一个所述第二间隙04具有相同的宽度。可以理解的，在所述多个第一电极100的排布密度大于所述多个第二电极200的排布密度的前提下，若将所述第二区域02中的每一个所述第二间隙04的宽度设置为相等，即所述多个第二电极200以等间隔排布，则所述第二区域02中任意位置的触控精度均相等，提高了所述第二区域02中触控精度的均一性。
进一步的，同理，为了提高所述第一区域01中触控精度的均一性，可以将所述第一区域01中的每一个所述第一间隙03的宽度设置为相同，即所述多个第一电极100以等间隔排布，则所述第一区域01中任意位置的触控精度均相等，提高了所述第一区域01中触控精度的均一性。
在一实施例中，如图4所示，所述触控面板00还包括：多个第三电极300，所述多个第三电极300位于所述第一区域01，所述多个第三电极300与所述多个第一电极100相交设置，所述多个第三电极300与所述多个第一电极100相互绝缘。
可以理解的，每一所述第三电极300和每一所述第一电极100相交位置均可以形成电容，当按压任一相交位置使得对应的电容值发生改变时，所述触控面板00可以识别到该点坐标，以对此做出反馈。
其中，所述多个第三电极300与所述多个第一电极100的相交位置可以设置一个绝缘块，所述绝缘块设于对应的第三电极300与对应的第一电极100之间，避免所述多个第三电极300与所述多个第一电极100之间电性连接，以及可以防止按压所述触控面板00时，所述第三电极300和所述第一电极100在相交位置接触造成短路，所述绝缘块的组成材料包括氮化硅、氮氧化硅中的至少一种。进一步的，在所述绝缘块靠近所述第三电极300的一侧、以及靠近所述第一电极100的一侧各设置一个界面层，所述界面层的组成材料包括氧化硅或者无定形硅，所述界面层可以提高所述绝缘块与所述第一电极100之间、以及所述绝缘块与所述第二电极200之间的附着力。
在一实施例中，如图5所示，所述多个第三电极300与所述多个第一电极100同层设置。具体的，所述第一电极100至少包括两个第一电极部101，所述两个第一电极部101和所述第三电极300同层设置，所述两个第一电极部101设于所述第三电极300的左右两侧；所述第一电极100还包括设于所述第三电极300一侧的一桥接部，所述桥接部包括桥身102和两个桥端103，所述桥身102设于所述两个第一电极部101之间，所述两个桥端103分别设于所述桥身102两侧，所述两个桥端103分别连接所述桥身102和所述两个第一电极部101。进一步的，在所述第三电极300和对应的桥接部之间可以设置一个所述绝缘块104，以绝缘所述第三电极300和对应的桥接部。
在一实施例中，如图6所示，所述多个第三电极300与所述多个第一电极100异层设置。具体的，所述多个第三电极300形成的膜层可以位于所述多个第一电极100形成的膜层的上方，即所述多个第三电极300均位于所述多个第一电极100的同一侧。进一步的，在所述第三电极300和对应的桥接部之间可以设置一个所述绝缘块104，以绝缘所述第三电极300和对应的第一电极100，其中所述绝缘块104可以与所述第三电极300相对设置，或者所述绝缘块104可以形成一完整的膜层于所述多个第三电极300和所述多个第一电极100之间，避免所述第三电极300与所述绝缘块104对位需求，降低精度需求。
在一实施例中，如图4所示，所述多个第三电极300的排布密度等于所述多个第一电极100的排布密度。可以理解的，由于所述多个第三电极300和所述多个第一电极100分别沿不同的方向排布，当所述多个第三电极300的排布密度和所述多个第一电极100的排布密度相等时，可以使得沿所述不同的方向上的触控精度相等，使得所述多个第三电极300和所述多个第一电极100的相交位置分布较均匀，提高了所述第一区域01中触控精度的均一性。
在一实施例中，如图7所示，所述触控面板00还包括：多个第四电极400，所述多个第四电极400位于所述第二区域02，所述多个第四电极400与所述多个第二电极200相交设置，所述多个第四电极400与所述多个第二电极200相互绝缘。
其中，所述多个第四电极400与所述多个第二电极200的相交位置可以设置一个绝缘块，所述绝缘块设于对应的第三电极300与对应的第二电极200之间，避免所述多个第四电极400与所述多个第二电极200之间电性连接，以及可以防止按压所述触控面板00时，所述第四电极400和所述第二电极200在相交位置接触造成短路，所述绝缘块的组成材料包括氮化硅、氮氧化硅中的至少一种。
其中，所述多个第四电极400与所述多个第二电极200同层设置，或者所述多个第四电极400与所述多个第二电极200异层设置。
其中，所述多个第四电极400的排布密度等于所述多个第二电极200的排布密度。
具体的，所述多个第四电极400的排布方式可以参考所述多个第三电极300的排布方式，所述第四电极400与所述第二电极200的相互排布关系可以参考所述第三电极300与所述第一电极100的相互排布关系。
本申请实施例提供显示装置，如图8所示，所述显示装置000包括彩膜基板501、偏光片502、盖板503和触控面板00；所述偏光片502设于所述彩膜基板501和所述盖板503之间；所述触控面板00设于所述偏光片502靠近所述盖板503的一侧，或者所述触控面板00设于所述偏光片502和所述彩膜基板501之间，或者所述触控面板00设于所述彩膜基板501远离所述偏光片502的一侧。
具体的，如图8所示，此处以所述触控面板00设于所述偏光片502靠近所述盖板503的一侧，以形成外挂式的显示装置000为例进行说明。所述触控面板00包括第一区域01和第二区域02，所述触控面板100包括：多个第一电极100，所述多个第一电极100位于所述第一区域01；多个第二电极200，所述多个第二电极200位于所述第二区域02，所述多个第一电极100的排布密度大于所述多个第二电极200的排布密度。
其中，如图8所示，所述触控面板00还包括：多个第三电极300，所述多个第三电极300位于所述第一区域01，所述多个第三电极300与所述多个第一电极100相交设置，所述多个第三电极300与所述多个第一电极100相互绝缘；进一步的，所述触控面板00还包括：多个第四电极400，所述多个第四电极400位于所述第二区域02，所述多个第四电极400与所述多个第二电极200相交设置，所述多个第四电极400与所述多个第二电极200相互绝缘。
具体的，所述显示装置000中所述触控面板00的设置方式可以参考上文关于所述触控面板00的相关描述。
本申请实施例提供的触控面板和显示装置，所述触控显示面板包括位于第一区域的多个第一电极和位于第二区域的多个第二电极，结合第一区域和第二区域的触控精度要求，例如将多个第一电极的排布密度设置为大于多个第二电极的排布密度，节省了第二区域中的多个第二电极的数量，在不影响触控面板使用精度的前提下，提高了第二电极利用率以及降低了触控面板的成本。
以上对本申请实施例所提供的触控面板和显示装置进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的技术方案及其核心思想；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的技术方案的范围。

Claims (16)

  1. 一种触控面板，其中，所述触控面板包括第一区域和第二区域，所述触控面板还包括：
    多个第一电极，所述多个第一电极位于所述第一区域，所述多个第一电极平行设置；
    多个第二电极，所述多个第二电极位于所述第二区域，所述多个第二电极平行设置，所述多个第一电极的排布密度大于所述多个第二电极的排布密度，所述多个第一电极和所述多个第二电极的尺寸相同，所述多个第一电极中相邻的两个第一电极之间具有第一间隙，所述多个第二电极中相邻的两个第二电极之间具有第二间隙，所述第一间隙的宽度小于所述第二间隙的宽度；
    其中，远离所述第一区域的第二间隙的宽度大于靠近所述第一区域的第二间隙的宽度，靠近所述第二区域的第一间隙的宽度大于远离所述第二区域的第一间隙的宽度，或者每一个所述第一间隙具有相同的宽度。
  2. 如权利要求1所述的触控面板，其中，所述第一区域包括所述触控面板的中心区域，所述第二区域围绕所述第一区域而设置。
  3. 如权利要求1所述的触控面板，其中，所述触控面板还包括：
    多个第三电极，所述多个第三电极位于所述第一区域，所述多个第三电极与所述多个第一电极相交设置，所述多个第三电极与所述多个第一电极相互绝缘。
  4. 如权利要求3所述的触控面板，其中，所述多个第三电极的排布密度等于所述多个第一电极的排布密度。
  5. 如权利要求3所述的触控面板，其中，所述多个第三电极与所述多个第一电极同层设置，或者所述多个第三电极与所述多个第一电极异层设置。
  6. 一种触控面板，其中，所述触控面板包括第一区域和第二区域，所述触控面板还包括：
    多个第一电极，所述多个第一电极位于所述第一区域；
    多个第二电极，所述多个第二电极位于所述第二区域，所述多个第一电极的排布密度大于所述多个第二电极的排布密度。
  7. 如权利要求6所述的触控面板，其中，所述第一区域包括所述触控面板的中心区域，所述第二区域围绕所述第一区域而设置。
  8. 如权利要求6所述的触控面板，其中，所述多个第一电极和所述多个第二电极的尺寸相同；
    所述多个第一电极平行设置，所述多个第二电极平行设置，所述多个第一电极中相邻的两个第一电极之间具有第一间隙，所述多个第二电极中相邻的两个第二电极之间具有第二间隙，所述第一间隙的宽度小于所述第二间隙的宽度。
  9. 如权利要求8所述的触控面板，其中，远离所述第一区域的第二间隙的宽度大于靠近所述第一区域的第二间隙的宽度。
  10. 如权利要求8所述的触控面板，其中，靠近所述第二区域的第一间隙的宽度大于远离所述第二区域的第一间隙的宽度。
  11. 如权利要求8所述的触控面板，其中，每一个所述第二间隙具有相同的宽度。
  12. 如权利要求8所述的触控面板，其中，每一个所述第一间隙具有相同的宽度。
  13. 如权利要求6所述的触控面板，其中，所述触控面板还包括：
    多个第三电极，所述多个第三电极位于所述第一区域，所述多个第三电极与所述多个第一电极相交设置，所述多个第三电极与所述多个第一电极相互绝缘。
  14. 如权利要求13所述的触控面板，其中，所述多个第三电极的排布密度等于所述多个第一电极的排布密度。
  15. 如权利要求13所述的触控面板，其中，所述多个第三电极与所述多个第一电极同层设置，或者所述多个第三电极与所述多个第一电极异层设置。
  16. 一种显示装置，其中，所述显示装置包括彩膜基板、偏光片、盖板和触控面板；
    所述偏光片设于所述彩膜基板和所述盖板之间；
    所述触控面板设于所述偏光片靠近所述盖板的一侧，或者所述触控面板设于所述偏光片和所述彩膜基板之间，或者所述触控面板设于所述彩膜基板远离所述偏光片的一侧，所述触控面板包括第一区域和第二区域，所述触控面板包括：
    多个第一电极，所述多个第一电极位于所述第一区域；
    多个第二电极，所述多个第二电极位于所述第二区域，所述多个第一电极的排布密度大于所述多个第二电极的排布密度。
PCT/CN2020/091205 2020-05-09 2020-05-20 触控面板和显示装置 WO2021227101A1 (zh)

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