WO2019033833A1 - 触控基板及显示装置 - Google Patents

触控基板及显示装置 Download PDF

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Publication number
WO2019033833A1
WO2019033833A1 PCT/CN2018/090112 CN2018090112W WO2019033833A1 WO 2019033833 A1 WO2019033833 A1 WO 2019033833A1 CN 2018090112 W CN2018090112 W CN 2018090112W WO 2019033833 A1 WO2019033833 A1 WO 2019033833A1
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WO
WIPO (PCT)
Prior art keywords
touch
substrate
electrode block
electrode
units
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2018/090112
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English (en)
French (fr)
Inventor
龚庆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
Original Assignee
BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
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 BOE Technology Group Co Ltd, Chengdu BOE Optoelectronics Technology Co Ltd filed Critical BOE Technology Group Co Ltd
Priority to US16/329,023 priority Critical patent/US10915190B2/en
Priority to EP18845503.4A priority patent/EP3671416A4/en
Priority to KR1020197023660A priority patent/KR102276664B1/ko
Priority to JP2019543373A priority patent/JP7096257B2/ja
Publication of WO2019033833A1 publication Critical patent/WO2019033833A1/zh
Anticipated expiration legal-status Critical
Priority to US17/142,463 priority patent/US11204673B2/en
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • 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
    • 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
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/56—Substrates having a particular shape, e.g. non-rectangular
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04111—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

  • the present disclosure belongs to the field of display technologies, and in particular, to a touch substrate and a display device.
  • the touch substrate includes a plurality of first electrodes and a plurality of second electrodes disposed in a cross, each of the first electrodes includes a plurality of first electrode blocks, adjacent to the first The electrode blocks are connected by a connecting portion, each of the second electrodes includes a plurality of second electrode blocks, and the adjacent second electrode blocks are connected by a bridge portion, and the first electrode and the second electrode are at the connecting portion And the bridging portion is disposed at an intersection, that is, each of the connecting portions is disposed to intersect with each of the bridging portions, and an insulating layer is disposed between the connecting portion and the bridging portion.
  • the touch substrate includes a plurality of touch units, each of the touch units includes at least one set of the connecting portions and the bridge portions that are disposed at an intersection and a first electrode block and a second electrode block connected thereto.
  • the connecting portion and the bridge portion disposed at the intersection are located at a central position of the touch unit, and the first electrode block connected through the connecting portion of the touch unit and the bridge portion
  • One of the connected second electrode blocks is a touch electrode, and the other is a sensing electrode.
  • the edge of the touch substrate is a curved edge
  • the size and shape of the first electrode block and the second electrode block near the curved edge in the touch unit near the curved edge Limited by the curved edge
  • the area is significantly smaller than the area of the first electrode block and the second electrode block away from the curved edge, which will cause the connection portion and the bridge portion of the touch unit near the curved edge to be too close
  • the edge of the touch panel increases the risk of the connection between the connection portion and the bridge portion of the touch unit and the edge of the touch substrate being short-circuited, thereby reducing the yield of the touch substrate.
  • An embodiment of the present disclosure provides a touch substrate having a curved edge, including a plurality of touch units arranged in a row and in a row, each of the touch units including a first electrode block connected by a connection portion and a second electrode block connected by a bridge portion, the connecting portion is disposed to intersect with the bridge portion, and an insulating layer is disposed between the connecting portion and the bridge portion, wherein the plurality of touch units include a first touch unit of the curved edge of the touch substrate and a second touch unit away from the curved edge of the touch substrate, and an intersection of the connection portion and the bridge portion in each of the first touch units The intersection of the connecting portion and the bridge portion in each of the second touch units is located at a center position of the second touch unit.
  • the first touch unit when the minimum distance between the intersection of the connecting portion and the bridge portion of the first touch unit to the edge of the touch substrate is greater than or equal to a predetermined threshold, the first touch unit The intersection of the connecting portion and the bridge portion is away from the edge of the touch substrate.
  • an intersection of the connecting portion and the bridge portion in the first touch unit is located at an approximate center position of the first touch unit.
  • the sum of the areas of the first electrode blocks in the first touch unit is equal to the sum of the areas of the second electrode blocks.
  • the plurality of touch units include a plurality of the first touch units.
  • the first electrode block, the second electrode block, and the connecting portion of the touch unit are disposed in the same layer and have the same material.
  • the material of the first electrode block, the second electrode block, and the connection portion in each of the touch units is indium tin oxide (ITO).
  • the first electrode blocks are arranged in a column direction, and the second electrode blocks are arranged in a row direction. In the column direction, the first electrode blocks located in two adjacent touch units are The integrated structure has a second electrode block located in two adjacent touch units in a row direction.
  • the first electrode block connected through the connection portion functions as a touch electrode
  • the second electrode block connected through the bridge portion functions as a sensing electrode
  • An example of the present disclosure also provides a display device including the touch substrate described above.
  • FIG. 1 is a schematic view of a touch substrate having curved edges
  • FIG. 2 is a schematic diagram of a touch substrate having curved edges according to an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of another touch substrate having curved edges according to an embodiment of the present disclosure.
  • FIG. 1 shows a schematic diagram of a touch substrate having curved edges.
  • the touch substrate includes a plurality of first electrodes (TX n to TX n-3 ) and a plurality of second electrodes (RX n to RX n-3 ) disposed in a cross.
  • each of the first electrodes extends in a column direction
  • the plurality of first electrodes are arranged in a row direction
  • each of the second electrodes extends in a row direction
  • the plurality of second electrodes are arranged in a row direction.
  • Each of the first electrodes includes a plurality of first electrode blocks, and the adjacent first electrode blocks are connected by a connecting portion
  • each of the second electrodes includes a plurality of second electrode blocks
  • the adjacent second electrode blocks are connected by a bridge portion
  • the first electrode and the second electrode are disposed at intersections of the connecting portion and the bridge portion, that is, each of the connecting portions is disposed to intersect with each of the bridge portions, and the connecting portion is An insulating layer is disposed between the bridge portions.
  • the second electrode block of 1/2 constitutes one touch unit 10. That is, the touch substrate includes a plurality of touch units arranged in a row and in a row. In each touch unit, for example, two 1/2 first electrode blocks connected by the connection portion are used as the touch electrodes 11, and two 1/2 second electrode blocks connected through the bridge portion are used as Induction electrode 12.
  • two 1/2 first electrode blocks connected through the connection portion may serve as sensing electrodes, thereby connecting two 1/2 seconds through the bridge portion.
  • the electrode block serves as a touch electrode.
  • the edge of the upper left corner of the touch substrate is a curved edge. Therefore, among the touch units near the curved edge, the first electrode block and the second electrode block near the curved edge The size and shape are limited by the curved edge, and the area thereof is significantly smaller than the area of the first electrode block and the second electrode block away from the curved edge, which will cause the connection of the touch unit near the curved edge and The bridge portion is too close to the edge of the touch substrate, thereby increasing the risk that the connection portion of the touch unit and the bridge portion are short-circuited with the edge of the touch substrate, thereby causing the yield of the touch substrate. reduce.
  • FIGS. 2 and 3 illustrate an example of a touch substrate having curved edges of an embodiment of the present disclosure.
  • the touch substrate includes a plurality of touch units arranged in a row and in a row, each of the touch units including a first electrode block connected through a connection portion and connected through a bridge portion. a second electrode block, the connecting portion is disposed at the intersection of the bridge portion, and an insulating layer is disposed between the connecting portion and the bridge portion, the plurality of touch units including the touch substrate a first touch unit 1 having a curved edge and a second touch unit 2 remote from the curved edge of the touch substrate, and the intersection of the connection portion and the bridge portion in each of the first touch units 1 is far away
  • the arcuate edge of the touch substrate is located at a center of the second touch unit 2 at an intersection of the connecting portion and the bridge portion of each of the second touch units 2 .
  • the minimum distance between the intersection of the connecting portion and the bridge portion of the first touch unit 1 to the edge of the touch substrate may be compared with a predetermined threshold to determine the first touch. Whether the intersection of the connecting portion and the bridge portion in the control unit 1 is away from the edge of the touch substrate.
  • the minimum distance is greater than or equal to the predetermined threshold, it is determined that the intersection of the connecting portion and the bridge portion in the first touch unit 1 is away from the edge of the touch substrate.
  • the intersections of the connecting portions of the plurality of second touch units 2 disposed in the same row and the bridge portions are located in the same row, and the connecting portions and the bridge portions of the plurality of second touch units 2 disposed in the same column
  • the intersections are located in the same row, and the intersections of the connection portions and the bridge portions in the first touch unit 1 are opposite to the connections in the second touch unit 2 disposed along the first touch unit 1 .
  • the intersection of the bridge portion is located on the side away from the edge of the touch substrate, and the intersection of the connection portion and the bridge portion in the second touch unit 2 disposed in the same row as the first touch unit 1
  • the column where the point is located is located on the side away from the edge of the touch substrate.
  • the intersection of the connecting portion and the bridge portion in each of the first touch units 1 is located at an approximate center position of the first touch unit 1 .
  • the intersection position of the connecting portion and the bridge portion is the center position of the second touch unit 2
  • 1/2 of the first electrode blocks are connected by the connecting portion
  • the two 1/2 second electrode blocks are connected by the bridge portion
  • the intersection of the bridge and the bridge is not necessarily located at the center of the first touch unit 1
  • the first touch unit 1 is adjacent to the curved edge of the touch substrate, and is subjected to the curved edge of the touch substrate.
  • the shape and size of the first electrode block and the second electrode block in each of the first touch units 1 may be irregular, for example, may be different from the first one in the second touch unit 2
  • the shape and size of the electrode block and the second electrode block are such that the intersection of the connection portion and the bridge portion in the first touch unit 1 can be away from the edge of the touch substrate.
  • the shape and size of the first electrode block and the second electrode block in the first touch unit 1 may be different, and the first electrode block and the first electrode block in the second touch unit 2
  • the shape and size of the two electrode blocks can all be the same.
  • the sum of the areas of the first electrode blocks in the first touch unit 1 is substantially equal to the sum of the areas of the second electrode blocks.
  • a first electrode block connected through the connecting portion is used as the touch electrode 11
  • a second electrode block connected through the bridge portion is used as the sensing electrode 12 .
  • the first electrode block connected through the connecting portion may serve as a sensing electrode
  • the second electrode block connected through the bridge portion functions as a touch electrode.
  • the second electrode block located in two adjacent touch units is a unitary structure in the row direction
  • the first electrode block located in two adjacent touch units is a unitary structure in the column direction.
  • the connecting portion and the bridge portion of the first touch unit 1 adjacent to the curved edge of the touch substrate are away from the curved edge of the touch substrate, that is, toward the The central area of the touch substrate is moved. Therefore, the risk of short-circuiting the connection between the connection portion and the bridge portion of the first touch unit 1 and the edge of the touch substrate can be effectively reduced.
  • the shape of the first electrode block and the second electrode block are changed accordingly, so that the sum of the area of the first electrode block in the first touch unit 1 and the area of the second electrode block are relatively balanced, thereby ensuring The touch sensitivity of the touch substrate near the curved edge.
  • Only one first touch unit 1 is included in the touch substrate shown in FIG. 2 .
  • the first touch unit 1 is adjacent to the curved edge of the touch substrate, and the intersection of the connection portion and the bridge portion is located at the position A. It can be seen that the first touch unit 1 is in the same position as the first touch unit 1 Or the position of the intersection of the connection portion and the bridge portion in the second touch unit 2 disposed in the same column, the position A is closer to the center position of the touch substrate, thereby avoiding the connection portion and the bridge portion at the position A Too close to the edge of the touch substrate, thereby reducing the risk of the connection portion at the position A and the bridge portion being short-circuited with the edge of the touch substrate.
  • the shape of the first touch unit 1 is also changed with respect to the second touch unit 2, and the shapes of the first electrode block and the second electrode block are also changed, thereby making the first touch
  • the sum of the area of the first electrode block in the control unit and the area of the second electrode block are relatively balanced, and the touch sensitivity of the position of the touch substrate near the curved edge can be ensured.
  • the touch substrate shown in FIG. 3 includes four first touch units 1 .
  • first touch units 1 As shown in FIG. 3, when the area of the curved edge of the touch substrate is large, a plurality of first touch units 1 need to be formed adjacent to the curved edge, and the connection of the first touch units 1 is Both the portion and the bridge portion move toward the center of the touch substrate.
  • the intersections of the connecting portions and the bridge portions of the four first touch units 1 are respectively located at positions A, B, C, and D.
  • the connection portion and the bridge portion at the positions A, B, C, and D are closer to the touch substrate than the position of the intersection of the connection portion and the bridge portion in the second touch unit 2 disposed in the same unit or in the same column.
  • the central position thus avoiding the connection portion and the bridge portion at the positions A, B, C, D being too close to the edge of the touch substrate, thereby reducing the connection portion and the bridge portion at the positions A, B, C, and D The risk of short-circuiting with the edge of the touch substrate.
  • each of the first touch units 1 changes with respect to the second touch unit 2, and the shapes of the first electrode block and the second electrode block also change, so that each The sum of the area of the first electrode block in the first touch unit 1 and the area of the second electrode block are relatively balanced, and the touch sensitivity of the position of the touch substrate near the curved edge can be ensured.
  • the shapes and sizes of the four first touch units 1 shown in FIG. 3 may be different, and the positions A, B, C, and D are respectively located on the first touch unit 1 of the first touch unit 1
  • the distances near the sides of the curved edges of the touch substrate may vary.
  • the minimum distance between the position A of the first touch unit 1 and the edge of the curved edge of the touch substrate may be greater than or equal to the first pre-position.
  • the minimum distance between the edge B and the edge of the first touch unit 1 adjacent to the curved edge of the touch substrate may be greater than or equal to the second position.
  • the minimum distance between the position C and the edge of the first touch unit 1 adjacent to the curved edge of the touch substrate may be greater than or equal to the first
  • the minimum distance between the position D and the edge of the first touch unit 1 adjacent to the curved edge of the touch substrate may be greater than or equal to a fourth preset threshold.
  • the first electrode block, the second electrode block, and the connecting portion of the touch unit are disposed in the same layer and have the same material.
  • the three structures can be formed by one patterning process.
  • the materials of the first electrode block, the second electrode block, and the connecting portion in the embodiment are all indium tin oxide (ITO).
  • ITO indium tin oxide
  • the technical solution of the present disclosure is not limited thereto, and those skilled in the art also Other materials may be used to form the first electrode block, the second electrode block, and the connection portion.
  • the embodiment further provides a display device including the above touch substrate.
  • the display device can be any product or component having a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.
  • the display device of the embodiment may further include other conventional structures such as a power supply unit, a display driving unit, and the like.

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Abstract

本公开的实施例提供一种触控基板及一种显示装置，所述触控基板包括成行、成列排布的多个触控单元，每个所述触控单元包括通过连接部连接的第一电极块和通过桥接部连接的第二电极块，所述连接部与所述桥接部交叉设置，且所述连接部与所述桥接部之间设有绝缘层，所述多个触控单元包括靠近所述触控基板的弧形边缘的第一触控单元以及远离所述触控基板的弧形边缘的第二触控单元，每个所述第一触控单元中的连接部与桥接部的交叉点远离所述触控基板的弧形边缘，每个所述第二触控单元中的连接部与桥接部的交叉点位于该第二触控单元的中心位置。

Description

触控基板及显示装置 技术领域
本公开属于显示技术领域，具体涉及触控基板及显示装置。
背景技术
存在具有弧形边缘的触控基板，例如，该触控基板包括交叉设置的多条第一电极和多条第二电极，每条第一电极包括多个第一电极块，相邻的第一电极块间通过连接部连接，每条第二电极包括多个第二电极块，相邻的第二电极块间通过桥接部连接，所述第一电极和所述第二电极在所述连接部和所述桥接部处交叉设置，即，每个所述连接部与每个所述桥接部交叉设置，且所述连接部与所述桥接部之间设有绝缘层。所述触控基板包括多个触控单元，每个所述触控单元包含至少一组交叉设置的所述连接部和所述桥接部及与其连接的第一电极块和第二电极块，一般来说，交叉设置的所述连接部和所述桥接部位于所述触控单元的中心位置处，所述触控单元中的通过所述连接部连接的第一电极块和通过所述桥接部连接的所述第二电极块中的一者为触控电极，另一者为感应电极。
例如，在所述触控基板的至少部分边缘是弧形边缘的情况下，靠近该弧形边缘的触控单元中，靠近该弧形边缘的第一电极块和第二电极块的大小及形状受该弧形边缘的限制，其面积明显小于远离该弧形边缘的第一电极块和第二电极块的面积，这将造成靠近该弧形边缘的触控单元的连接部和桥接部太靠近所述触控基板的边缘，从而增大了该触控单元的连接部和桥接部与所述触控基板的边缘走线短路的风险，进而造成所述触控基板的良率降低。
公开内容
本公开的实施例提供一种具有弧形边缘的触控基板，其包括成行、成列排布的多个触控单元，每个所述触控单元包括通过连接部连接的第一电极块和通过桥接部连接的第二电极块，所述连接部与所述桥接部交叉设置，且所述连接部与所述桥接部之间设有绝缘层，所述多个触控单元包括靠近所述触控基板的弧形边缘的第一触控单元以及远离所述触控基板的弧形边缘的第二触控单元，每个所述第一触控单元中的连接部与桥接部的交叉点远离所述触控基板的弧形边缘，每个所述第二触控单元中的连接部与桥接部的交叉点位于该第二触控单元的中心位置。
在一些实施方式中，所述第一触控单元中的连接部与桥接部的交叉位置到所述触控基板的边缘的最小距离大于或等于预定阈值时，所述第一触控单元中的连接部与桥接部的交叉位置远离所述触控基板的边缘。
在一些实施方式中，所述第一触控单元中的连接部与桥接部的交叉点位于所述第一触控单元的近似中心位置。
在一些实施方式中，所述第一触控单元中的第一电极块的面积之和与第二电极块的面积之和相等。
在一些实施方式中，所述多个触控单元包括多个所述第一触控单元。
在一些实施方式中，所述触控单元中的第一电极块、第二电极块、连接部同层设置且材料相同。
在一些实施方式中，每个所述触控单元中的第一电极块、第二电极块、连接部的材料为氧化铟锡(ITO)。
在一些实施方式中，所述第一电极块沿列方向排布，所述第二电极块沿行方向排布，在列方向上，位于两相邻的触控单元中的第一电极块为一体结构，在行方向上，位于两相邻的触控单元中的第二电极块为一体结构。
在一些实施方式中，每个所述触控单元中，通过连接部连接的第一电极块作为触控电极，通过桥接部连接的第二电极块作为感应电极。
本公开的实例还提供一种显示装置，其包括上述的触控基板。
附图说明
图1为一种具有弧形边缘的触控基板的示意图；
图2为本公开的实施例的一种具有弧形边缘的触控基板的示意图；
图3为本公开的实施例的另一种具有弧形边缘的触控基板的示意图。
具体实施方式
为使本领域技术人员更好地理解本公开的技术方案，下面结合附图和具体实施方式对本公开的技术方案作进一步详细描述。
图1示出了一种具有弧形边缘的触控基板的示意图。如图1所示，该触控基板包括交叉设置的多条第一电极(TX n～TX n-3)和多条第二电极(RX n～RX n-3)。作为示例，每条第一电极沿列方向延伸，所述多条第一电极沿行方向排列，每条第二电极沿行方向延伸，所述多条第二电极沿行方向排列。
每条第一电极包括多个第一电极块，相邻的第一电极块间通过连接部连接，每条第二电极包括多个第二电极块，相邻第二电极块间通过桥接部连接，所述第一电极和所述第二电极在所述连接部和所述桥接部处交叉设置，即，每个所述连接部与每个所述桥接部交叉设置，且所述连接部与所述桥接部之间设有绝缘层。
如图1所示，以交叉设置的所述连接部和所述桥接部的交叉位置为中心，连接同一个连接部的两个1/2的第一电极块和连接同一个桥接部的两个1/2的第二电极块构成一个触控单元10。即，所述触控基板包括成行、成列排布的多个触控单元。每个触控单元中，例如，通过所述连接部连接的两个1/2的第一电极块作为触控电极11，通过所述桥接部连接的两个1/2的第二电极块作为感应电极12。
应该理解的是，每个触控单元中，通过所述连接部连接的两个1/2的第一电极块可以作为感应电极，从而通过所述桥接部连接的两个1/2的第二电极块作为触控电极。
图1所示示例中，所述触控基板的左上角的边缘是弧形边缘，因此，靠近该弧形边缘的触控单元中，靠近该弧形边缘的第一电极块和第二电极块的大小及形状受该弧形边缘的限制，其面积明显小于远离该弧形边缘的第一电极块和第二电极块的面积，这将造成靠近该弧形边缘的触控单元的连接部和桥接部太靠近所述触控基板的边缘，从而增大了该触控单元的连接部和桥接部与所述触控基板的边缘走线短路的风险，进而造成所述触控基板的良率降低。
图2和图3示出了本公开的实施例的具有弧形边缘的触控基板的示例。
如图2和图3所示，所述触控基板包括成行、成列排布的多个触控单元，每个所述触控单元包括通过连接部连接的第一电极块和通过桥接部连接的第二电极块，所述连接部与所述桥接部交叉设置，且所述连接部与所述桥接部之间设有绝缘层，所述多个触控单元包括靠近所述触控基板的弧形边缘的第一触控单元1以及远离所述触控基板的弧形边缘的第二触控单元2，每个所述第一触控单元1中的连接部与桥接部的交叉点远离所述触控基板的弧形边缘，每个所述第二触控单元2中的连接部与桥接部的交叉点位于该第二触控单元2的中心位置。
在一些实施方式中，可以将所述第一触控单元1中的连接部与桥接部的交叉位置到所述触控基板的边缘的最小距离与预定阈值进行比较，来判断所述第一触控单元1中的连接部与桥接部的交叉位置是否远离所述触控基板的边缘。
例如，在所述最小距离大于或等于所述预定阈值时，判断所述第一触控单元1中的连接部与桥接部的交叉位置远离所述触控基板的边缘。
在一些实施方式中，同行设置的多个第二触控单元2中的连接部与桥接部的交叉点位于同一行，同列设置的多个第二触控单元2中的连接部与桥接部的交叉点位于同一列，每个所述第一触控单元1中的连接部与桥接部的交叉点相对于与该第一触控单元1同行设置的第二触控单元2中的连接部与桥接部的交叉点所在的行，位于远离所述触控基板的边缘的一侧，相对于与该第一触控单元1同列设置的第二触控单元2中的连接部与桥接部的交叉点所在的列，位于远离所述触控基板的边缘的一侧。
在一些实施方式中，每个所述第一触控单元1中的连接部与桥接部的交叉点位于所述第一触控单元1的近似中心位置。
在此需要说明的是，本实施例中，例如，对于每个所述第二触控单元2而言，其连接部和桥接部的交叉位置为该第二触控单元2的中心位置，两个1/2的第一电极块通过所述连接部连接，两个1/2的第二电极块通过所述桥接部连接，对于每个所述第一触控单元1而言，其连接部和桥接部的交叉位置不一定位于该第一触控单元1的中心位置，且由于第一触控单元1靠近所述触控基板的弧形边缘，受所述触控基板的弧形边缘的影响，每个所述第一触控单元1中的第一电极块和第二电极块的形状和大小可为不规则的，例如，可不同于所述第二触控单元2中的第一电极块和第二电极块的形状和大小，只要能够使得第一触控单元1中的连接部与桥接部的交叉位置远离所述触控基板的边缘即可。
在一些实施方式中，所述第一触控单元1中的第一电极块和第二电极块的形状和大小可各不相同，所述第二触控单元2中的第一电极块和第二电极块的形状和大小则可都相同。
在一些实施方式中，所述第一触控单元1中的第一电极块的面积之和与第二电极块的面积之和大致相等。
本实施例中，每个所述触控单元中，例如，通过所述连接部连接的第一电极块作为触控电极11，通过所述桥接部连接的第二电极块作为感应电极12。应当理解的是，作为替换，每个触控单元中，通过所述连接部连接的第一电极块可以作为感应电极，从 而通过所述桥接部连接的第二电极块作为触控电极。
在一些实施方式中，在行方向上，位于两相邻的触控单元中的第二电极块为一体结构，在列方向上，位于两相邻的触控单元中的第一电极块为一体结构。
本实施例的触控基板中，靠近所述触控基板的弧形边缘的第一触控单元1中的连接部和桥接部远离了所述触控基板的弧形边缘，即，向所述触控基板的中心区域移动了，因此，可以有效地降低第一触控单元1的连接部和桥接部与所述触控基板的边缘走线短路的风险，同时，第一触控单元1中的第一电极块和第二电极块的形状随之发生变化，使得第一触控单元1中的第一电极块的面积之和与第二电极块的面积之和较为均衡，从而能够保证所述触控基板的靠近所述弧形边缘的位置的触控灵敏度。
图2所示的触控基板中仅包括一个第一触控单元1。如图2所示，第一触控单元1靠近所述触控基板的弧形边缘，其连接部和桥接部的交叉点位于位置A，可以看出，相对于与第一触控单元1同行或同列设置的第二触控单元2中的连接部与桥接部的交叉点的位置而言，位置A更靠近所述触控基板的中心位置，因此避免了位置A处的连接部和桥接部太靠近所述触控基板的边缘，从而降低了位置A处的连接部和桥接部与所述触控基板的边缘走线短路的风险。同时，相对于第二触控单元2而言，第一触控单元1的形状也随之改变，且其中的第一电极块和第二电极块的形状也随之改变，从而使得第一触控单元中的第一电极块的面积之和与第二电极块的面积之和较为均衡，能够保证所述触控基板的靠近所述弧形边缘的位置的触控灵敏度。
应该理解的是，本领域技术人员可以根据需要来设置所述第一触控单元1中的第一电极块和第二电极块的形状和面积，只要符合本公开的技术方案的构思即可。
图3所示的触控基板包括四个第一触控单元1。如图3所示，当所述触控基板的弧形边缘所涉及的区域较大时，则需要靠近该弧形边缘形成多个第一触控单元1，这些第一触控单元1的连接部 和桥接部均向所述触控基板的中心移动。
如图3所示，四个第一触控单元1的连接部和桥接部的交叉点分别位于位置A、B、C、D，从图中可以看出，分别相对于与各第一触控单元1同行或同列设置的第二触控单元2中的连接部与桥接部的交叉点的位置而言，位置A、B、C、D处的连接部和桥接部更靠近所述触控基板的中心位置，因此避免了位置A、B、C、D处的连接部和桥接部太靠近所述触控基板的边缘，从而降低了位置A、B、C、D处的连接部和桥接部与所述触控基板的边缘走线短路的风险。同时，相对于第二触控单元2而言，每个第一触控单元1的形状也随之改变，且其中的第一电极块和第二电极块的形状也随之改变，从而使得每个第一触控单元1中的第一电极块的面积之和与第二电极块的面积之和较为均衡，能够保证所述触控基板的靠近所述弧形边缘的位置的触控灵敏度。
应该理解的是，本领域技术人员可以根据需要来设置每个所述第一触控单元1中的第一电极块和第二电极块的形状和面积，只要符合本公开的技术方案的构思即可。
在此需要说明的是，图3所示的四个第一触控单元1的形状和大小可各不相同，且位置A、B、C、D与其各自所处的第一触控单元1的靠近所述触控基板的弧形边缘的边的距离可各不相同。
例如，位置A与其所处的第一触控单元1的靠近所述触控基板的弧形边缘的边(即，所述触控基板的弧形边缘)的最小距离可大于或等于第一预设阈值，位置B与其所处的第一触控单元1的靠近所述触控基板的弧形边缘的边(即，所述触控基板的弧形边缘)的最小距离可大于或等于第二预设阈值，位置C与其所处的第一触控单元1的靠近所述触控基板的弧形边缘的边(即，所述触控基板的弧形边缘)的最小距离可大于或等于第三预设阈值，位置D与其所处的第一触控单元1的靠近所述触控基板的弧形边缘的边的最小距离可大于或等于第四预设阈值。
在一些实施方式中，本实施例中的触控单元(包括第一触控单元1和第二触控单元2)中的第一电极块、第二电极块、连接部 同层设置且材料相同，该情况下，可以采用一次构图工艺形成这三个结构。
在一些实施方式中，本实施例中的第一电极块、第二电极块、连接部的材料均为氧化铟锡(ITO)，当然，本公开的技术方案不限于此，本领域技术人员也可以使用其他材料来形成所述第一电极块、所述第二电极块和所述连接部。
本实施例还提供一种显示装置，其包括上述的触控基板。该显示装置可以为手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等具有显示功能的任何产品或部件。
当然，本实施例的显示装置中还可以包括其他常规结构，如电源单元、显示驱动单元等。
可以理解的是，以上实施例及实施方式仅仅是为了说明本公开的原理而采用的示例，然而本公开并不局限于此。在不相互排斥的情况下，本公开的上述实施例及实施方式的各技术特征可任意组合。而且，对于本领域内的普通技术人员而言，在不脱离本公开的实质的情况下，可以对上述实施例及实施方式进行各种变型和修改，这些变型和修改也视为落入本公开的保护范围。

Claims (10)

  1. 一种具有弧形边缘的触控基板，包括成行、成列排布的多个触控单元，每个所述触控单元包括通过连接部连接的第一电极块和通过桥接部连接的第二电极块，所述连接部与所述桥接部交叉设置，且所述连接部与所述桥接部之间设有绝缘层，所述多个触控单元包括靠近所述触控基板的弧形边缘的第一触控单元以及远离所述触控基板的弧形边缘的第二触控单元，其中，每个所述第一触控单元中的连接部与桥接部的交叉点远离所述触控基板的弧形边缘，每个所述第二触控单元中的连接部与桥接部的交叉点位于该第二触控单元的中心位置。
  2. 根据权利要求1所述的触控基板，其中，所述第一触控单元中的连接部与桥接部的交叉位置到所述触控基板的边缘的最小距离大于或等于预定阈值时，所述第一触控单元中的连接部与桥接部的交叉位置远离所述触控基板的边缘。
  3. 根据权利要求1所述的触控基板，其中，所述第一触控单元中的连接部与桥接部的交叉点位于所述第一触控单元的近似中心位置。
  4. 根据权利要求1所述的触控基板，其中，所述第一触控单元中的第一电极块的面积之和与第二电极块的面积之和相等。
  5. 根据权利要求1所述的触控基板，其中，所述多个触控单元包括多个所述第一触控单元。
  6. 根据权利要求1所述的触控基板，其中，每个所述触控单元中的第一电极块、第二电极块、连接部同层设置且材料相同。
  7. 根据权利要求6所述的触控基板，其中，每个所述触控单元中的第一电极块、第二电极块、连接部的材料为氧化铟锡。
  8. 根据权利要求1所述的触控基板，其中，所述第一电极块沿列方向排布，所述第二电极块沿行方向排布，在列方向上，位于两相邻的触控单元中的第一电极块为一体结构，在行方向上，位于两相邻的触控单元中的第二电极块为一体结构。
  9. 根据权利要求1所述的触控基板，其中，每个所述触控单元中，通过连接部连接的第一电极块作为触控电极，通过桥接部连接的第二电极块作为感应电极。
  10. 一种显示装置，包括权利要求1至9中任一项所述的触控基板。
PCT/CN2018/090112 2017-08-17 2018-06-06 触控基板及显示装置 Ceased WO2019033833A1 (zh)

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