WO2019072053A1 - 触控阵列基板、显示面板和显示装置 - Google Patents

触控阵列基板、显示面板和显示装置 Download PDF

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Publication number
WO2019072053A1
WO2019072053A1 PCT/CN2018/104195 CN2018104195W WO2019072053A1 WO 2019072053 A1 WO2019072053 A1 WO 2019072053A1 CN 2018104195 W CN2018104195 W CN 2018104195W WO 2019072053 A1 WO2019072053 A1 WO 2019072053A1
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WIPO (PCT)
Prior art keywords
electrode
array substrate
sub
touch array
touch
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PCT/CN2018/104195
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English (en)
French (fr)
Inventor
张瑞辰
王凯旋
彭晓青
梁栋
王菲菲
肖文俊
罗兴友
Original Assignee
京东方科技集团股份有限公司
北京京东方光电科技有限公司
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Priority to US16/333,005 priority Critical patent/US11307684B2/en
Publication of WO2019072053A1 publication Critical patent/WO2019072053A1/zh

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    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
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    • G02F1/00Devices 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
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    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
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    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446Digitisers, 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
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    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0448Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1343Electrodes
    • G02F1/134309Electrodes characterised by their geometrical arrangement
    • G02F1/134363Electrodes characterised by their geometrical arrangement for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]
    • GPHYSICS
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    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices

Definitions

  • Embodiments of the present disclosure relate to a touch array substrate, a display panel, and a display device.
  • touch technology With the continuous development of display technology and touch technology, touch technology has been in people's daily lives. Generally, touch technology includes different technical directions such as optical, resistive, capacitive, and electromagnetic touch technologies; among many touch technologies, capacitive touch technology relies on its low cost and excellent user experience. Has become the mainstream of touch technology.
  • the touch display panel can be divided into an on-cell touch display panel, an overlay surface (OGS) touch display panel, and an in-cell touch display panel.
  • the external touch display panel is a touch panel that integrates the touch structure and the protection substrate outside the display panel, and is formed by separately separating the touch panel from the liquid crystal panel, and then bonding them together to form a touch function.
  • LCD liquid crystal panel
  • the cover-surface touch display device and the in-cell touch display device are formed by integrating the touch structure and the liquid crystal panel, and the difference is that the cover-surface touch display device forms the touch structure on the touch structure.
  • the surface of the opposite substrate (for example, the color filter substrate) of the liquid crystal panel is away from the surface of the array substrate; the in-cell touch display device is disposed inside the liquid crystal panel, such as the surface of the opposite substrate in the liquid crystal panel.
  • One side of the array substrate, and/or the touch structure is disposed on the array substrate.
  • At least one embodiment of the present disclosure provides a touch array substrate including: a plurality of first electrodes disposed in a row direction and a column direction to form a plurality of electrode rows and a plurality of electrode columns, wherein the plurality of first electrodes are
  • the edge in the column direction includes a convex shape and a concave shape, and the convex shape of an edge of one of the adjacent ones of the electrode columns extends into the other of the adjacent two of the electrode columns The concave shape of the edge.
  • a touch array substrate further includes: a plurality of sub-pixels disposed along the row direction and the column direction to form a plurality of pixel rows and a plurality of pixel columns, the plurality of sub-pixels including a gap sub-pixel, each of the gap sub-pixels overlapping each of the two electrode columns of the adjacent two of the electrode columns, and the gap sub-pixels corresponding to the two adjacent electrode columns are different The pixel column.
  • each of the first electrodes overlaps with a plurality of the gap sub-pixels.
  • two edges of the two first electrodes adjacent to each other in the row direction and the spacers belonging to the same pixel column The pixels overlap.
  • a shape of each of the first electrodes includes a rectangle, and the first electrodes in each of the electrode columns are dislocated in the row direction to form a The convex portion and the concave portion.
  • each of the edges in the two opposite edges of the two first electrodes adjacent in the row direction, each of the edges includes: at least one concave a recessed portion along the row direction; and at least one projection protruding in the row direction, the recessed portion and the protruding portion being alternately disposed, each of the edges being at the recessed portion
  • the protrusions overlap the gap sub-pixels belonging to the different pixel columns, respectively.
  • the shape of the protrusion includes a rectangle.
  • the touch array substrate further includes: a plurality of leads extending along the column direction and electrically connected to the plurality of first electrodes, wherein each of the leads passes through the column direction
  • An effective display area of the sub-pixel, the lead passing through the effective display area of the spacer sub-pixel disposed along the column direction includes a plurality of first portions and a plurality of second portions, the first portion being located in the row direction Between two adjacent first electrodes, the second portion overlaps with at least one of the first electrode portions.
  • the plurality of first portions and the plurality of second portions are alternately disposed.
  • a length of the first portion in the column direction is equal to a length of the first electrode in the column direction.
  • the first electrodes are multiplexed into a common electrode and a touch electrode.
  • the leads are multiplexed into a common electrode line and a touch electrode line.
  • each of the sub-pixels includes a second electrode configured to form an electric field with the first electrode.
  • the lead wire and the first electrode are electrically connected through a via hole.
  • the first electrode is disposed corresponding to an integer number of sub-pixels in the column direction.
  • At least one embodiment of the present disclosure further provides a display panel comprising the touch array substrate according to any one of the above.
  • the display panel according to an embodiment of the present disclosure further includes: an opposite substrate disposed opposite to the touch array substrate; and a liquid crystal layer disposed between the array substrate and the opposite substrate.
  • At least one embodiment of the present disclosure also provides a display device comprising the display panel of any of the above.
  • 1 is a schematic plan view of an array substrate
  • Figure 2 is an enlarged schematic view of the broken line frame 190 of Figure 1;
  • FIG. 3 is a schematic plan view of a touch array substrate according to an embodiment of the present disclosure.
  • Figure 4 is an enlarged schematic view of the broken line frame 190 of Figure 3;
  • FIG. 5 is a schematic plan view of a first electrode according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic plan view of another touch array substrate according to an embodiment of the present disclosure.
  • Figure 7 is an enlarged schematic view of the broken line frame 190 of Figure 6;
  • FIG. 8 is a cross-sectional view of the touch array substrate taken along line A-A' of FIG. 7 according to an embodiment of the present disclosure
  • FIG. 9 is a schematic structural diagram of a touch display panel according to an embodiment of the present disclosure.
  • the in-cell touch display panel Since the in-cell touch display panel has the advantages of compatibility with the display panel process, simple manufacturing process, and low cost, the dominant position of the touch technology has been rapidly occupied.
  • the black matrix needs to be designed to cover the touch electrode lines and the data lines or other wires, thereby causing The aperture ratio of the touch display panel is reduced.
  • the touch electrode line can be disposed in the open area of the sub-pixel, and the black matrix can be designed to be narrower, so that the aperture ratio of the touch display panel can be improved.
  • the inventors of the present application found in the study that the common electrode needs to be divided at a position where the touch electrode line is located to form a common electrode block that can be multiplexed as a touch electrode to avoid multiplexing as a common electrode of the touch electrode.
  • the block overlaps the touch electrode line.
  • all the sub-pixels in the sub-pixel column through which the touch electrode line passes will simultaneously overlap with the two common electrode blocks; for the above-mentioned sub-pixels, different common electrode blocks are displayed due to signal delay or the like.
  • the sub-pixel column through which the touch electrode line passes may have a vertical line or the like in a macroscopic manner.
  • FIG. 1 shows a schematic plan view of an array substrate.
  • FIG. 2 is an enlarged schematic view showing a region where the broken line frame 190 in FIG. 1 is located.
  • the display panel includes a plurality of sub-pixels 110 arranged in an array (as shown in FIG. 2), a plurality of first electrodes 120 disposed in an array, and wires respectively connected to the plurality of first electrodes 120. 130.
  • the wire 130 may be electrically connected to the first electrode 120 through the via 137.
  • the first electrode 120 can be multiplexed into a common electrode and a touch electrode. That is, the first electrode 120 can form an electric field with the pixel electrode for display, or can be used as a touch electrode to implement a touch function.
  • the wires 130 may be disposed in the open region of the sub-pixel 110 (that is, through the effective display region of the sub-pixel).
  • the two first electrodes 120 adjacent in the row direction are separated by the wires 130.
  • all the sub-pixels 120 in the sub-pixel column through which the wires 130 separated by the two adjacent first electrodes 120 in the row direction pass will simultaneously overlap the two first electrodes 120 due to
  • the two first electrodes 120 may have a difference in the common voltage on the two electrodes 120 due to a signal delay or the like, resulting in a difference in display (for example, gradation or brightness) of the two portions overlapping the two common electrode blocks. . Therefore, the column of sub-pixels through which the wire passes may have macroscopic defects such as vertical lines.
  • inventions of the present invention provide a touch array substrate, a display panel, and a display device.
  • the touch array substrate includes: a plurality of first electrodes disposed in a row direction and a column direction to form a plurality of electrode rows and a plurality of electrode columns, the edges of the plurality of first electrodes in the column direction including a convex shape and a concave shape The shape, the convex shape of the edge of one of the adjacent two electrode columns, extends into the concave shape of the edge of the other of the adjacent two electrode columns.
  • the touch array substrate can avoid the occurrence of defects such as vertical lines in a macroscopic manner.
  • An embodiment of the present disclosure provides an array substrate.
  • 3 is a schematic plan view of an array substrate according to an embodiment of the present disclosure; and
  • FIG. 4 is an enlarged schematic view showing a region where the broken line frame 190 is located in FIG.
  • the touch array substrate includes a plurality of first electrodes 120 disposed in a row direction and a column direction to form a plurality of electrode rows 122 and a plurality of electrode columns 124 , and a plurality of first electrodes 120 .
  • the edge in the column direction includes a convex shape 510 and a concave shape 520, and the convex shape 510 of the edge of one of the adjacent two electrode columns 124 extends into the concave edge of the other of the adjacent two electrode columns 124 Shape 520. Therefore, the adjacent two electrode columns can correspond to different columns of sub-pixels, so that the touch array substrate can avoid the occurrence of defects such as vertical lines in a macroscopic manner.
  • the touch array substrate further includes a plurality of sub-pixels 110.
  • the sub-pixel here is the smallest unit for display, which may include a pixel electrode or the like.
  • the first electrode is not included in the sub-pixel, but the case where the first electrode is required to be engaged in display is not excluded.
  • the first electrode 120 can function as a common electrode, and an electric field formed between the common electrode and the pixel electrode can be used to drive the liquid crystal to perform an electric field for display.
  • the plurality of sub-pixels 110 are disposed along the row direction and the column direction to form a plurality of pixel rows 112 and a plurality of pixel columns 114; the plurality of first electrodes 120 are also disposed in the row direction and the column direction to form the electrode rows 122 and the electrode columns 124;
  • the sub-pixels 110 include a plurality of gap sub-pixels 115, each of the gap sub-pixels 115 partially overlapping each of the adjacent two electrode columns 124, and the corresponding two electrode columns 124 correspond to the spacers. Pixels 115 are located in different pixel columns 114. It should be noted that the above-mentioned "gap sub-pixel corresponding to two adjacent electrode columns" means a gap sub-pixel overlapping with each of the adjacent two electrode portions.
  • the spacer The pixel 115 will partially overlap the two first electrodes 120 adjacent in the row direction at the same time.
  • the left half of the gap sub-pixel 115 partially overlaps with a first electrode 120
  • the gap sub-pixel The right half of 115 overlaps with the other first electrode 120.
  • the left half and the right half of the gap sub-pixel 115 are displayed due to the difference in the common voltages on the two first electrodes 120. Differences, for example, grayscale differences or brightness differences.
  • the touch array substrate can solve the above problems without adding additional process steps, and does not add additional cost.
  • vertical line includes a dark line or a bright line.
  • the first electrode may be a transparent electrode.
  • the first electrode may be made of a transparent oxide material, for example, made of Indium Tin Oxide (ITO).
  • ITO Indium Tin Oxide
  • each of the first electrodes 120 overlaps the plurality of gap sub-pixels 115. That is, the two first electrodes 120 adjacent in the row direction correspond to the plurality of gap sub-pixels 115.
  • each of the first electrodes 120 overlaps with the plurality of sub-pixels 110 in the row direction.
  • the two edges 121 of the two first electrodes 120 adjacent to each other in the row direction overlap with the spacer sub-pixels 115 belonging to the same pixel column 114. That is, the gap sub-pixels 115 corresponding to the two first electrodes 120 adjacent in the row direction are located in the same pixel column 114.
  • the gap sub-pixels 115 corresponding to the edges 121 of the two first electrodes 120 adjacent in the column direction are located in different pixel columns 114, so that the gap sub-pixels 115 corresponding to the adjacent two electrode columns 124 are located in different pixel columns. 114. Therefore, the first electrode structure of the touch array substrate provided by the example is relatively simple.
  • each of the first electrodes 120 includes a rectangle.
  • the first electrodes 120 in the respective electrode columns 124 are dislocated in the row direction to form the convex shape 510 and the concave shape 520.
  • the present disclosure includes but is not limited thereto, and the shape of the first electrode may also be other shapes.
  • the touch array substrate further includes a plurality of leads 130.
  • the plurality of leads 130 extend in the column direction and are electrically connected to the plurality of first electrodes 120, respectively.
  • Each of the first electrodes 120 loads or outputs an electrical signal.
  • Each lead 130 passes through an effective display area of the sub-pixel 110 disposed along the column direction, that is, each lead is disposed in an open area of the sub-pixel 110; thus, the black matrix can be designed to be narrower, thereby improving the touch The aperture ratio of the array substrate.
  • the lead 130 passing through the effective display area of the spacer sub-pixel 115 disposed along the column direction includes a plurality of first portions 131 and a plurality of second portions 132, the first portions 131 being located adjacent to each other in the row direction. Between the first electrodes 120, the second portion 132 partially overlaps the at least one first electrode 120.
  • the sub-pixel through which the first portion 131 passes is a gap sub-pixel
  • the sub-pixel through which the second portion 132 passes is a common sub-pixel, thereby avoiding the gap sub-pixels being connected in a row, and a vertical line or the like appears in a macroscopic manner.
  • the above-mentioned “effective display area” refers to an area in which a sub-pixel can emit light or transmit light for display
  • the above “effective display area of the lead through the sub-pixel” is an effective display area of the leader line and the sub-pixel. overlap.
  • the length of the first portion 131 in the column direction is equal to the length of the first electrode 120 in the column direction.
  • the first portion 131 can function to separate the adjacent two first electrodes 120, avoid overlapping with the first electrode 120, and can reduce or even eliminate the capacitance formed by the first portion 131 and the first electrode 120.
  • the lead 130 and the first electrode 120 are electrically connected through the via 137.
  • the first electrode 120 is disposed corresponding to an integer number of sub-pixels 110 in the column direction, so that the simultaneous sub-pixels and the two first electrodes 120 adjacent in the column direction can be avoided. Overlap to avoid creating bright or dark lines in the row direction.
  • FIG. 5 is a schematic diagram of a first electrode according to an embodiment of the present disclosure.
  • the first electrode 120 may include a plurality of first sub-electrodes 127, and each of the first sub-electrodes 127 includes a plurality of openings 1275.
  • Each of the wires 130 passing through the effective display region of the sub-pixel 110 disposed along the column direction can reduce or even eliminate the capacitance with the first electrode 120 by being disposed at a position where the plurality of openings 1275 are located, thereby reducing the load or output of the wire 130 The delay of the signal.
  • the second portion 132 may also be disposed in the plurality of open areas 1275 of the first electrode 120.
  • the first electrode 120 further includes a connecting portion 128; the connecting portion 128 electrically connects the adjacent first sub-electrodes 127, so that the first electrode 120 can be integrally used as a touch. electrode.
  • connection portion 128 is located in a region between the first sub-electrodes 127.
  • the plurality of first sub-electrodes are disposed in one-to-one correspondence with the plurality of sub-pixels, for example, the plurality of first sub-electrodes are disposed in one-to-one correspondence with the pixel electrodes of the plurality of sub-pixels, and at this time, as shown in FIG. 5
  • the via 137 may be located in a region between each of the first sub-electrodes 127, for example, a location where the connection portion 128 is located; that is, the via may be located in a region between each sub-pixel, that is, a region in which the black matrix is located.
  • the electrical connection between the wire and the first electrode can be realized through the via hole, and the wire can be located at a position where the plurality of openings are located, thereby reducing or even eliminating the capacitance between the wire and the first electrode, thereby reducing the wire loading or output.
  • the delay of the signal is not limited to the via hole, and the wire can be located at a position where the plurality of openings are located, thereby reducing or even eliminating the capacitance between the wire and the first electrode, thereby reducing the wire loading or output.
  • the first electrode is multiplexed into a common electrode and a touch electrode.
  • the first electrode 120 when the first electrode 120 serves as a common electrode, the first electrode 120 integrally applies a common electrode signal.
  • the first sub-electrodes 127 each having a plurality of openings 1275 can respectively form an electric field with the pixel electrode.
  • the first electrode 120 is used as a touch electrode, since the plurality of first sub-electrodes 127 are electrically connected to each other, the first electrode 120 as a touch electrode can be used as a whole.
  • FIG. 6 is a schematic plan view of another touch array substrate according to an embodiment of the present disclosure.
  • FIG. 7 is an enlarged schematic view showing a region where the broken line frame 190 in FIG. 6 is located.
  • each edge 121 includes at least one recessed portion 1212 and along which are recessed in the row direction.
  • the gap sub-pixels 115 corresponding to the two first electrodes 120 adjacent in the row direction are located in different pixel columns 114, so that the gap sub-pixels 115 corresponding to the adjacent two electrode columns 124 are located at different pixels. Column 114.
  • the touch array substrate provided in this example can avoid the occurrence of defects such as short vertical lines in the macroscopic gap sub-pixels corresponding to the two first electrodes adjacent in the row direction.
  • the protruding portion 1214 can constitute the above-mentioned convex shape 510, and the concave portion 1212 can constitute the concave shape 520 described above.
  • the shape of the projection 1214 includes a rectangle.
  • the present disclosure includes but is not limited thereto, and the shape of the first electrode may also be other shapes.
  • the touch array substrate further includes a plurality of leads 130.
  • the plurality of leads 130 extend in the column direction and are electrically connected to the plurality of first electrodes 120, respectively.
  • the first electrode 120 loads or outputs an electrical signal.
  • Each lead 130 passes through an effective display area of the sub-pixel 110 disposed along the column direction, that is, each lead is disposed in an open area of the sub-pixel 110; a lead passing through an effective display area of the spacer sub-pixel 115 disposed along the column direction
  • the 130 includes a plurality of first portions 131 and a plurality of second portions 132, the first portions 131 being located between the two first electrodes 120 adjacent in the row direction, and the second portions 132 overlapping the at least one first electrode 120.
  • a plurality of first portions 131 and a plurality of second portions 132 are alternately disposed.
  • FIG. 8 is a cross-sectional view of the touch array substrate taken along line A-A' of FIG. 7 according to an embodiment of the present disclosure.
  • each sub-pixel 110 includes a second electrode 119 , which can form an electric field with the first electrode 120 . Therefore, the touch array substrate can be used for a liquid crystal display panel, and the electric field generated by the first electrode and the second electrode is used to drive the liquid crystal molecules to deflect, thereby realizing display.
  • the touch array substrate further includes a base substrate 101.
  • a transparent substrate such as a quartz substrate, a glass substrate, or a plastic substrate can be used.
  • the touch array substrate further includes a data line 102 disposed on the base substrate 101.
  • the data lines 102 can be placed side by side with the wires 130.
  • the touch array substrate further includes a first insulating layer 103 disposed on a side of the data line 102 and the wires 130 away from the substrate 101.
  • the first electrode 120 is disposed on a side of the first insulating layer 103 away from the substrate substrate 101.
  • the touch array substrate further includes a second insulating layer 104 disposed on a side of the first electrode 120 away from the substrate 101 .
  • FIG. 9 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure.
  • the display panel includes the touch array substrate described in any of the above. Therefore, the display panel has the beneficial effects corresponding to the beneficial effects of the touch array substrate included in the display panel, and details are not described herein again.
  • the display panel further includes a counter substrate 200 disposed on the touch array substrate 100 and a liquid crystal layer disposed between the touch array substrate 100 and the opposite substrate 200 . 300.
  • the display panel can be a liquid crystal display panel.
  • the disclosure includes but is not limited thereto, and the display panel may also be other types of display panels.
  • An embodiment of the present disclosure also provides a display device.
  • the display device includes the display panel described in any of the above. Therefore, the display device has the beneficial effects corresponding to the beneficial effects of the display panel included in the display device, and details are not described herein again.
  • the display device can be any product or component having a display function, such as a smartphone, tablet, wearable electronic device, television, display, notebook, digital photo frame, navigator, and the like.
  • a display function such as a smartphone, tablet, wearable electronic device, television, display, notebook, digital photo frame, navigator, and the like.

Abstract

一种触控阵列基板、显示面板和显示装置。该触控阵列基板包括:多个第一电极(120),沿行方向和列方向设置以形成多个电极行(122)和多个电极列(124),多个第一电极(120)在列方向上的边缘(121)包括凸出形状(510)和凹入形状(520),相邻两个电极列(124)之一的边缘(121)的凸出形状(510)伸入相邻两个电极列(124)的另一个的边缘的凹入形状(520)。该触控阵列基板相邻两个电极列(124)可对应不同列的子像素(110),从而使得该触控阵列基板可避免在宏观上出现竖线等不良。

Description

触控阵列基板、显示面板和显示装置
本申请要求于2017年10月11日递交的中国专利申请第201710942566.X号的优先权,在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。
技术领域
本公开的实施例涉及一种触控阵列基板、显示面板和显示装置。
背景技术
随着显示技术和触控技术的不断发展,触摸技术已经遍及人们的日常生活中。通常,触控技术包括光学式、电阻式、电容式、电磁式触控技术等不同的技术方向;在众多的触控技术中,电容式触控技术凭借其较低的成本和优异的用户体验已成为触控技术的主流。
另一方面,触控显示面板可分为外挂式(On-Cell)触控显示面板、覆盖表面式(OGS)触控显示面板以及内嵌式(In-Cell)触控显示面板。外挂式触控显示面板是将触控结构与显示面板外的保护基板集成在一起单独的触控面板,通过将触控面板与液晶面板分开生产,然后贴合到一起形成的具有触控功能的液晶显示屏。覆盖表面式触控显示装置和内嵌式触控显示装置均是将触控结构与液晶面板集成在一起形成的,其不同之处在于:覆盖表面式触控显示装置是将触控结构形成在液晶面板中对置基板(例如彩膜基板)的远离阵列基板一侧的表面上;内嵌式触控显示装置是将触控结构设置在液晶面板的内部,如液晶面板中对置基板的面向阵列基板的一侧,和/或将触控结构设置于阵列基板上。
发明内容
本公开至少一个实施例提供一种触控阵列基板,其包括:多个第一电极,沿行方向和列方向设置以形成多个电极行和多个电极列,所述多个第一电极在所述列方向上的边缘包括凸出形状和凹入形状,相邻两个所述电极列之一的边缘的所述凸出形状伸入所述相邻两个所述电极列的另一个的边缘的所述凹入形状。
例如,本公开一实施例提供的触控阵列基板还包括:多个子像素,沿所述 行方向和所述列方向设置以形成多个像素行和多个像素列,所述多个子像素包括多个间隙子像素,每个所述间隙子像素分别与相邻的两个所述电极列的每个所述电极列部分交叠,相邻的两个电极列对应的所述间隙子像素位于不同的所述像素列。
例如,在本公开一实施例提供的触控阵列基板中,每个所述第一电极与多个所述间隙子像素交叠。
例如,在本公开一实施例提供的触控阵列基板中,在所述行方向相邻的两个所述第一电极的彼此相对的两个边缘与属于同一所述像素列的所述间隔子像素交叠。
例如,在本公开一实施例提供的触控阵列基板中,每个所述第一电极的形状包括矩形,各所述电极列中的所述第一电极在所述行方向上错位设置以形成所述凸部和所述凹部。
例如,在本公开一实施例提供的触控阵列基板中,在所述行方向相邻的两个所述第一电极的彼此相对的两个边缘中,每个所述边缘包括:至少一个凹入部;沿所述行方向凹入;以及至少一个凸出部,沿所述行方向凸出,所述凹入部与所述凸出部交替设置,每个所述边缘在所述凹入部与所述凸出部分别与属于不同的所述像素列的所述间隙子像素交叠。
例如,在本公开一实施例提供的触控阵列基板中,所述凸出部的形状包括矩形。
例如,本公开一实施例提供的触控阵列基板还包括:多个引线,沿所述列方向延伸并与所述多个第一电极分别电性相连,各所述引线穿过沿列方向设置的所述子像素的有效显示区,穿过沿列方向设置的所述间隔子像素的有效显示区的引线包括多个第一部分和多个第二部分,所述第一部分位于在所述行方向相邻的两个所述第一电极之间,所述第二部分与至少一个所述第一电极部分交叠。
例如,在本公开一实施例提供的触控阵列基板中,所述多个第一部分和所述多个第二部分交替设置。
例如,在本公开一实施例提供的触控阵列基板中,所述第一部分在所述列方向的长度等于所述第一电极在所述列方向的长度。
例如,在本公开一实施例提供的触控阵列基板中,所述第一电极复用为公共电极和触控电极。
例如,在本公开一实施例提供的触控阵列基板中,所述引线复用为公共电极线和触控电极线。
例如,在本公开一实施例提供的触控阵列基板中,各所述子像素包括:第二电极,被配置为与所述第一电极形成电场。
例如,在本公开一实施例提供的触控阵列基板中,所述引线与所述第一电极通过过孔电性相连。
例如,在本公开一实施例提供的触控阵列基板中,所述第一电极与在所述列方向上的整数个子像素对应设置。
本公开至少一个实施例还提供一种显示面板,包括上述任一项所述的触控阵列基板。
例如,在本公开一实施例提供的显示面板还包括:对置基板,与所述触控阵列基板对盒设置;以及液晶层,设置在所述阵列基板和所述对置基板之间。
本公开至少一个实施例还提供一种显示装置,包括上述任一项所述的显示面板。
附图说明
为了更清楚地说明本公开实施例的技术方案,下面将对实施例的附图作简单地介绍,显而易见地,下面描述中的附图仅仅涉及本公开的一些实施例,而非对本公开的限制。
图1为一种阵列基板的平面示意图;
图2为图1中虚线框190的放大示意图;
图3为根据本公开一实施例提供的一种触控阵列基板的平面示意图;
图4为图3中虚线框190的放大示意图;
图5为根据本公开一实施例提供的一种第一电极的平面示意图;
图6为根据本公开一实施例提供的另一种触控阵列基板的平面示意图;
图7为图6中虚线框190的放大示意图;
图8为根据本公开一实施例提供的一种触控阵列基板沿图7中A-A’方向的剖面示意图;以及
图9为根据本公开一实施例提供的一种触控显示面板的结构示意图。
具体实施方式
为使本公开实施例的目的、技术方案和优点更加清楚,下面将结合本公开实施例的附图,对本公开实施例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公开的一部分实施例,而不是全部的实施例。基于所描述的本公开的实施例,本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例,都属于本公开保护的范围。
除非另外定义,本公开使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性,而只是用来区分不同的组成部分。“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同,而不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接,而是可以包括电性的连接,不管是直接的还是间接的。
由于内嵌式(In-Cell)触控显示面板具有与显示面板工艺兼容、制作工艺简单、成本低等优势,目前已迅速占领了触控技术的主导地位。然而,在通常的内嵌式触控显示面板中,由于触控电极线与数据线或其他导线平行设置,黑矩阵需要设计地较宽以覆盖触控电极线和数据线或其他导线,从而导致该触控显示面板的开口率降低。为了解决上述问题,可将触控电极线设置在子像素的开口区,此时黑矩阵可设计地较窄,从而可提高该触控显示面板的开口率。
然而,本申请的发明人在研究中发现:公共电极需要在触控电极线所在的位置分块以形成可复用为触控电极的公共电极块,以避免复用为触控电极的公共电极块与触控电极线交叠。此时,该触控电极线穿过的子像素列中的所有子像素会同时与两个公共电极块交叠;对于上述的子像素,由于不同的公共电极块由于信号延迟等原因,在显示时,与该子像素同时交叠的两个公共电极块上的公共电压会产生差异(延迟或电压大小差异),从而导致该子像素的与两个公共电极块交叠的两部分的显示(例如,灰度或亮度)会产生差异。因此,该触控电极线穿过的子像素列在宏观上会出现竖线等不良。
图1示出了一种阵列基板的平面示意图。图2为图1中虚线框190所在区域的放大示意图。如图1和图2所示,该显示面板包括阵列排布的多个子像素110(如图2所示)、阵列设置的多个第一电极120以及与多个第一电极120分别相连的导线130,例如,导线130可通过过孔137与第一电极120电性相连。第一电极120可复用为公共电极和触控电极,也就是说,第一电极120可与像 素电极形成电场以进行显示,也可作为触控电极以实现触控功能。如图1和图2所示,为了提高该阵列基板的开口率,可将导线130设置在子像素110的开口区(也就是,穿过子像素的有效显示区域)。为了避免第一电极120与导线130交叠,在行方向上相邻的两个第一电极120被导线130分隔。此时,如图2所示,将行方向上相邻的两个第一电极120分隔的导线130穿过的子像素列中的所有子像素120会同时与两个第一电极120交叠,由于两个第一电极120由于信号延迟等原因,两个电极120上的公共电压会产生差异,从而导致与两个公共电极块交叠的两部分的显示(例如,灰度或亮度)会产生差异。因此,该导线穿过的子像素列在宏观上会出现竖线等不良。
因此,本发明实施例提供一种触控阵列基板、显示面板和显示装置。该触控阵列基板包括:多个第一电极,沿行方向和列方向设置以形成多个电极行和多个电极列,多个第一电极在列方向上的边缘包括凸出形状和凹入形状,相邻两个电极列之一的边缘的凸出形状伸入相邻两个电极列的另一个的边缘的凹入形状。该触控阵列基板可避免在宏观上出现竖线等不良。
下面,结合附图对本公开实施例提供的触控阵列基板、显示面板和显示装置进行详细的说明。
本公开一实施例提供一种阵列基板。图3为根据本公开一实施例的阵列基板的平面示意图;图4为图3中虚线框190所在区域的放大示意图。如图3和图4所示,该触控阵列基板包括:多个第一电极120,沿行方向和列方向设置以形成多个电极行122和多个电极列124,多个第一电极120在列方向上的边缘包括凸出形状510和凹入形状520,相邻两个电极列124之一的边缘的凸出形状510伸入相邻两个电极列124的另一个的边缘的凹入形状520。由此,相邻两个电极列可对应不同列的子像素,从而使得该触控阵列基板可避免在宏观上出现竖线等不良。
例如,如图3和图4所示,该触控阵列基板还包括多个子像素110。这里的子像素为进行显示的最小单元,其可以包括像素电极等。在本说明书中,为了描述的方便,没有将第一电极包括在子像素中,但并不是排除进行显示时需要第一电极配合的情况。例如,第一电极120可以用作公共电极,公共电极和像素电极之间形成的电场可以用于驱动液晶以进行显示的电场。多个子像素110沿行方向和列方向设置以形成多个像素行112和多个像素列114;多个第一电极120也沿行方向和列方向设置以形成电极行122和电极列124;多个子 像素110包括多个间隙子像素115,每个间隙子像素115分别与相邻的两个电极列124中的每个电极列124部分交叠,相邻的两个电极列124对应的间隙子像素115位于不同的像素列114。需要说明的是,上述的“相邻的两个电极列对应的间隙子像素”是指与相邻的两个电极中每个电极列部分交叠的间隙子像素。
在本实施例提供的触控阵列基板中,由于间隙子像素115同时与相邻的两个电极列124中的每个电极列124部分交叠,对于每个间隙子像素115来说,间隙子像素115会同时与在行方向相邻的两个第一电极120部分交叠,例如,如图4所示,间隙子像素115的左半部分与一个第一电极120部分交叠,间隙子像素115的右半部分与另一个第一电极120部分交叠,此时,由于这两个第一电极120上的公共电压的差异,该间隙子像素115的左半部分和右半部分会产生显示差异,例如,灰度差异或亮度差异。然而,由于相邻的两个电极列124对应的间隙子像素115位于不同的像素列114,产生显示差异的间隙子像素115无法位于同一像素列114,从而可避免在宏观上出现竖线等不良。另外,该触控阵列基板无需增加其他工艺步骤,便可解决上述的问题,不会增加额外的成本。需要说明的是,上述的“竖线”包括暗线或亮线。
例如,第一电极可为透明电极,例如,第一电极可采用透明氧化物材料制作,例如,采用氧化铟锡(Indium Tin Oxide,ITO)制作。
例如,在一些示例中,如图3和图4所示,每个第一电极120与多个间隙子像素115交叠。也就是说,在行方向相邻的两个第一电极120对应多个间隙子像素115。
例如,在一些示例中,如图3和图4所示,每个第一电极120与在行方向与多个子像素110交叠。
例如,在一些示例中,如图3和图4所示,在行方向相邻的两个第一电极120的彼此相对的两个边缘121与属于同一像素列114的间隔子像素115交叠。也就是说,在行方向相邻的两个第一电极120对应的间隙子像素115位于同一像素列114。在列方向相邻的两个第一电极120的边缘121分别对应的间隙子像素115位于不同的像素列114,从而实现相邻的两个电极列124对应的间隙子像素115位于不同的像素列114。由此,该示例提供的触控阵列基板的第一电极结构较为简单。
例如,在一些示例中,如图3和图4所示,每个第一电极120的形状包括 矩形。此时,各电极列124中的第一电极120在行方向上错位设置以形成凸出形状510和凹入形状520。当然,本公开包括但不限于此,第一电极的形状还可为其他形状。
例如,在一些示例中,如图3和图4所示,该触控阵列基板还包括多个引线130;多个引线130沿列方向延伸并与多个第一电极120分别电性相连,以为各个第一电极120加载或输出电信号。各引线130穿过沿列方向设置的子像素110的有效显示区,也就是说,各引线设置在子像素110的开口区;由此,黑矩阵可设计地较窄,从而可提高该触控阵列基板的开口率。如图3和图4,穿过沿列方向设置的间隔子像素115的有效显示区的引线130包括多个第一部分131和多个第二部分132,第一部分131位于在行方向相邻的两个第一电极120之间,第二部分132与至少一个第一电极120部分交叠。由此,第一部分131穿过的子像素为间隙子像素,第二部分132穿过的子像素为普通的子像素,从而可避免间隙子像素连成一列,在宏观上出现竖线等不良。需要说明的是,上述的“有效显示区”是指子像素可发光或透光以进行显示的区域,上述的“引线穿过子像素的有效显示区”是指引线与子像素的有效显示区交叠。
例如,在一些示例中,如图3-4所示,第一部分131在列方向的长度等于第一电极120在列方向的长度。由此,第一部分131可起到分隔相邻的两个第一电极120的作用,避免与第一电极120重叠,可减少甚至消除第一部分131与第一电极120形成的电容。
例如,在一些示例中,如图3和图4所示,引线130与第一电极120通过过孔137电性相连。
例如,在一些示例中,如图4所示,第一电极120与在列方向上的整数个子像素110对应设置,从而可避免子像素与在列方向相邻的两个第一电极120同时部分交叠,从而避免在行方向产生亮线或暗线。
图5为根据本公开一实施例的一种第一电极的示意图。如图5所示,第一电极120可包括多个第一子电极127,各第一子电极127包括多个开口1275。穿过沿列方向设置的子像素110的有效显示区的各导线130可通过设置在多个开口1275所在的位置来减少甚至消除与第一电极120之间的电容,从而降低导线130加载或输出信号的延迟。
需要说明的是,第二部分132也可设置在第一电极120的多个开口区1275。
例如,在一些示例中,如图5所示,第一电极120还包括连接部128;连 接部128将相邻的第一子电极127电性相连,以使第一电极120可整体作为触控电极。
例如,在一些示例中,如图5所示,连接部128位于第一子电极127之间的区域。
例如,在一些示例中,多个第一子电极与多个子像素一一对应设置,例如,多个第一子电极与多个子像素的像素电极一一对应设置,此时,如图5所示,过孔137可位于各第一子电极127之间的区域,例如,连接部128所在的位置;也就是说过孔可位于各子像素之间的区域,即,黑矩阵所在的区域。由此,既可通过过孔实现导线与第一电极的电连接,又可使得导线位于多个开口所在的位置,从而降低甚至消除导线与第一电极之间的电容,从而降低导线加载或输出信号的延迟。
例如,在一些示例中,第一电极复用为公共电极和触控电极。例如,如图5所示,当第一电极120作为公共电极时,第一电极120整体施加公共电极信号,此时,各具有多个开口1275的第一子电极127可分别与像素电极形成电场以进行显示。当第一电极120作为触控电极时,由于多个第一子电极127相互电性相连,第一电极120整体可作为一个触控电极。
图6为根据本公开一实施例的另一种触控阵列基板的平面示意图。图7为图6中虚线框190所在区域的放大示意图。如图6和图7所示,在行方向相邻的两个第一电极120的彼此相对的两个边缘121中,每个边缘121包括:沿行方向凹入的至少一个凹入部1212和沿行方向凸出的至少一个凸出部1214;凹入部1212与凸出部1214交替设置,每个边缘121在凹入部1212与凸出部1214分别与属于不同的像素列114的间隙子像素115重叠,也就是说,在行方向上相邻的两个第一电极120对应的间隙子像素115位于不同的像素列114,从而实现相邻的两个电极列124对应的间隙子像素115位于不同的像素列114。当第一电极的尺寸较大时,本示例提供的触控阵列基板可避免在行方向上相邻的两个第一电极对应的间隙子像素在宏观上出现短竖线等不良。需要说明的是,在图6所示的触控阵列基板中,凸出部1214可构成上述的凸出形状510,凹入部1212可构成上述的凹入形状520。
例如,在一些示例中,如图6和图7所示,凸出部1214的形状包括矩形。当然,本公开包括但不限于此,第一电极的形状还可为其他形状。
例如,在一些示例中,如图6-7所示,该触控阵列基板还包括多个引线130; 多个引线130沿列方向延伸并与多个第一电极120分别电性相连,以为各个第一电极120加载或输出电信号。各引线130穿过沿列方向设置的子像素110的有效显示区,也就是说,各引线设置在子像素110的开口区;穿过沿列方向设置的间隔子像素115的有效显示区的引线130包括多个第一部分131和多个第二部分132,第一部分131位于在行方向相邻的两个第一电极120之间,第二部分132与至少一个第一电极120重叠。
例如,在一些示例中,如图6-7所示,多个第一部分131和多个第二部分132交替设置。
图8为根据本公开一实施例提供的一种触控阵列基板沿图7中A-A’方向的剖面示意图。如图8所示,在该触控阵列基板中,各子像素110包括:第二电极119,可与第一电极120形成电场。由此,该触控阵列基板可用于液晶显示面板,利用第一电极和第二电极产生的电场来驱动液晶分子偏转,从而实现显示。
例如,在一些示例中,如图8所示,该触控阵列基板还包括衬底基板101。衬底基板101可采用石英基板、玻璃基板或塑料基板等透明基板。
例如,在一些示例中,如图8所示,该触控阵列基板还包括数据线102,设置在衬底基板101上。数据线102可与导线130并排设置。
例如,在一些示例中,如图8所示,该触控阵列基板还包括第一绝缘层103,设置在数据线102和导线130远离衬底基板101的一侧。
例如,在一些示例中,如图8所示,第一电极120设置在第一绝缘层103远离衬底基板101的一侧。
例如,在一些示例中,如图8所示,该触控阵列基板还包括第二绝缘层104,设置在第一电极120远离衬底基板101的一侧。
本公开一实施例还提供一种显示面板。图9为根据本公开一实施例提供的显示面板的结构示意图。该显示面板包括上述任一项所描述的触控阵列基板。因此,该显示面板具有与其包括的触控阵列基板的有益效果对应的有益效果,本实施例在此不再赘述。另外,对于该显示面板中的其他结构或部件可参考通常设计,本实施例在此不再赘述。
例如,在一些示例中,如图9所示,该显示面板还包括与触控阵列基板100对盒设置的对置基板200以及设置在触控阵列基板100和对置基板200之间的液晶层300。该显示面板可为液晶显示面板。当然,本公开包括但不限于此, 该显示面板还可为其他类型的显示面板。
本公开一实施例还提供一种显示装置。该显示装置包括上述任一项所描述的显示面板。因此,该显示装置具有与其包括的显示面板的有益效果对应的有益效果,本实施例在此不再赘述。另外,对于该显示装置中的其他结构或部件可参考通常设计,本实施例在此不再赘述。
例如,在一些示例中,该显示装置可以为智能手机、平板电脑、可穿戴电子设备、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。
有以下几点需要说明:
(1)本公开实施例附图中,只涉及到与本公开实施例涉及到的结构,其他结构可参考通常设计。
(2)在不冲突的情况下,本公开同一实施例及不同实施例中的特征可以相互组合。
以上,仅为本公开的具体实施方式,但本公开的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本公开揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本公开的保护范围之内。因此,本公开的保护范围应以权利要求的保护范围为准。

Claims (18)

  1. 一种触控阵列基板,包括:
    多个第一电极,沿行方向和列方向设置以形成多个电极行和多个电极列,
    其中,所述多个第一电极在所述列方向上的边缘包括凸出形状和凹入形状,相邻两个所述电极列之一的边缘的所述凸出形状伸入所述相邻两个所述电极列的另一个的边缘的所述凹入形状。
  2. 根据权利要求1所述触控阵列基板,还包括:
    多个子像素,沿所述行方向和所述列方向设置以形成多个像素行和多个像素列,
    其中,所述多个子像素包括多个间隙子像素,每个所述间隙子像素分别与相邻的两个所述电极列的每个所述电极列部分交叠,相邻的两个电极列对应的所述间隙子像素位于不同的所述像素列。
  3. 根据权利要求2所述的触控阵列基板,其中,每个所述第一电极与多个所述间隙子像素交叠。
  4. 根据权利要求1-3中任一项所述的触控阵列基板,其中,在所述行方向相邻的两个所述第一电极的彼此相对的两个边缘与属于同一所述像素列的所述间隔子像素交叠。
  5. 根据权利要求1-4中任一项所述的触控阵列基板,其中,每个所述第一电极的形状包括矩形,各所述电极列中的所述第一电极在所述行方向上错位设置以形成所述凸出形状和所述凹入形状。
  6. 根据权利要求1-4中任一项所述的触控阵列基板,其中,在所述行方向相邻的两个所述第一电极的彼此相对的两个边缘中,每个所述边缘包括:
    至少一个凹入部;沿所述行方向凹入;以及
    至少一个凸出部,沿所述行方向凸出,
    其中,所述凹入部与所述凸出部交替设置,每个所述边缘在所述凹入部与所述凸出部分别与属于不同的所述像素列的所述间隙子像素交叠。
  7. 根据权利要求6所述的触控阵列基板,其中,所述凸出部的形状包括矩形。
  8. 根据权利要求1-7中任一项所述的触控阵列基板,还包括:
    多个引线,沿所述列方向延伸并与所述多个第一电极分别电性相连,
    其中,各所述引线穿过沿列方向设置的所述子像素的有效显示区,穿过沿列方向设置的所述间隔子像素的有效显示区的引线包括多个第一部分和多个第二部分,所述第一部分位于在所述行方向相邻的两个所述第一电极之间,所述第二部分与至少一个所述第一电极部分交叠。
  9. 根据权利要求8所述的触控阵列基板,其中,所述多个第一部分和所述多个第二部分交替设置。
  10. 根据权利要求8所述的触控阵列基板,其中,所述第一部分在所述列方向的长度等于所述第一电极在所述列方向的长度。
  11. 根据权利要求1-10中任一项所述的触控阵列基板,其中,所述第一电极复用为公共电极和触控电极。
  12. 根据权利要求8-10中任一项所述的触控阵列基板,其中,所述引线复用为公共电极线和触控电极线。
  13. 根据权利要求1-12中任一项所述的触控阵列基板,其中,各所述子像素包括:
    第二电极,被配置为与所述第一电极形成电场。
  14. 根据权利要求8-10中任一项所述的触控阵列基板,其中,所述引线与所述第一电极通过过孔电性相连。
  15. 根据权利要求1-14中任一项所述的触控阵列基板,其中,所述第一电极与在所述列方向上的整数个子像素对应设置。
  16. 一种显示面板,包括根据权利要求1-15中任一项所述的触控阵列基板。
  17. 根据权利要求16所述的显示面板,还包括:
    对置基板,与所述触控阵列基板对盒设置;以及
    液晶层,设置在所述触控阵列基板和所述对置基板之间。
  18. 一种显示装置,包括根据权利要求16或17所述的显示面板。
PCT/CN2018/104195 2017-10-11 2018-09-05 触控阵列基板、显示面板和显示装置 WO2019072053A1 (zh)

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