WO2020119015A1 - 触控面板及触控显示装置 - Google Patents

触控面板及触控显示装置 Download PDF

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Publication number
WO2020119015A1
WO2020119015A1 PCT/CN2019/085555 CN2019085555W WO2020119015A1 WO 2020119015 A1 WO2020119015 A1 WO 2020119015A1 CN 2019085555 W CN2019085555 W CN 2019085555W WO 2020119015 A1 WO2020119015 A1 WO 2020119015A1
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WIPO (PCT)
Prior art keywords
electrode
touch panel
chain
transparent
layer
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Ceased
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PCT/CN2019/085555
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English (en)
French (fr)
Inventor
刘敏伦
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.)
Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Priority to US16/484,549 priority Critical patent/US20200201507A1/en
Publication of WO2020119015A1 publication Critical patent/WO2020119015A1/zh
Anticipated expiration legal-status Critical
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
    • G06F3/0412—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
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
    • 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
    • G06F3/044—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 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
    • 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
    • G06F3/0448—Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality
    • 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 invention relates to the field of touch technology, in particular to a touch panel and a touch display device.
  • Flexible touch display is a display technology with great competitive advantages in the future.
  • One of the major advantages of the flexible touch display is that it can be bent, so that it can obtain a larger display area and occupy less space, which is convenient for carrying and application.
  • Existing flexible touch displays usually use a flexible substrate, and thin-film transistors, organic light-emitting diodes and other components are sequentially fabricated on the flexible substrate, and finally a polarizer, a touch screen, and a protective glass are added.
  • An object of the present invention is to provide a touch panel, which can not only effectively solve the visibility problem caused by the etching gap of the existing touch panel using ITO material, but also by setting the auxiliary electrode on the first electrode
  • the second electrode layer above the layer is matched with the first electrode layer, so as to effectively avoid the short circuit of the touch electrode caused by the etching residue.
  • the present invention provides a touch panel including: a substrate; a first electrode layer, the first electrode layer is disposed on the substrate, and the first electrode layer includes : A plurality of first electrode chains and a plurality of second electrode chains; the plurality of first electrode chains are arranged at intervals, each first electrode chain includes a plurality of spaced first transparent electrodes; the plurality of second electrodes The chains are arranged at intervals, and each second electrode chain includes a plurality of spaced-apart second transparent electrodes.
  • the second electrode chain and the first electrode chain are cross-insulated and disposed between the second electrode chain and the first
  • a connection portion is formed at the intersection of the electrode chains, and the connection portion includes a first connection portion, and the first connection portion is used to electrically connect two adjacent first transparent electrodes on the same first electrode chain;
  • a second electrode layer, the second electrode layer is disposed on the first electrode layer, the second electrode layer includes: a plurality of auxiliary electrodes, each of the auxiliary electrodes is disposed on the adjacent first transparent A position corresponding to the etching gap formed by the electrode and the second transparent electrode.
  • the auxiliary electrode is electrodeless.
  • the first connection portion is provided on the second electrode layer, and a first insulation is provided between the first connection portion and the first transparent electrode and the second transparent electrode Layer, the first insulating layer defines a first through hole corresponding to the first transparent electrode, and both ends of the first connecting portion respectively pass through the first through hole and the first A transparent electrode is in contact.
  • a second insulating layer is provided on the second electrode layer, and the second insulating layer covers the first connection portion and the plurality of auxiliary electrodes.
  • connection portion further includes a second connection portion, the second connection portion and the first connection portion are cross-insulated, and the second connection portion is used to electrically connect the same Two adjacent second transparent electrodes on the second electrode chain.
  • the first transparent electrode and the second transparent electrode are made of the same material, and both are made of indium tin oxide.
  • the material of the auxiliary electrode is indium tin oxide.
  • the materials of the first insulating layer and the second insulating layer are silicon oxide, silicon nitride, or a combination of both.
  • the first electrode chain is a sensing electrode chain and the second electrode chain is a driving electrode chain; or the first electrode chain is a driving electrode chain and the second electrode chain is Induction electrode chain.
  • the touch panel further includes an edge lead and a driving part, the edge lead is electrically connected to the first electrode layer and the driving part, and the driving part is connected to an external touch Control driver chip.
  • the present invention also provides a touch display device including the above-mentioned touch panel.
  • the advantage of the present invention is that the touch panel of the present invention can not only effectively solve the visibility problem caused by the etching gap of the existing touch panel using ITO material, but also by setting the auxiliary electrode above the first electrode layer
  • the second electrode layer is matched with the first electrode layer, so as to effectively avoid the short circuit of the touch electrode caused by the etching residue.
  • FIG. 1 is an exploded schematic view of a touch panel in an embodiment of the invention.
  • FIGS. 2A and 2B are schematic diagrams of the first electrode layer and the second electrode layer in the embodiment of the present invention.
  • FIG. 3A and 3B are schematic diagrams of a conventional touch panel, and FIG. 3B is a partially enlarged schematic diagram of the area A shown in FIG. 3A.
  • FIG. 4A and 4B are schematic diagrams of the touch panel in the embodiment of the present invention, and FIG. 4B is a partially enlarged schematic diagram of the area B shown in FIG. 4A.
  • FIG. 5 is a cross-sectional view of the touch panel in the embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a touch display device in an embodiment of the invention.
  • Embodiments of the present invention provide a touch panel and a touch display device. Each will be described in detail below.
  • FIG. 1 is an exploded schematic diagram of a touch panel in an embodiment of the invention.
  • 2A and 2B are schematic diagrams of the first electrode layer and the second electrode layer in the embodiment of the present invention.
  • 3A and 3B are schematic diagrams of a conventional touch panel, and FIG. 3B is a partially enlarged schematic diagram of the area A shown in FIG. 3A.
  • 4A and 4B are schematic diagrams of the touch panel in the embodiment of the present invention, and FIG. 4B is a partially enlarged schematic diagram of the area B shown in FIG. 4A.
  • 5 is a cross-sectional view of the touch panel in the embodiment of the present invention.
  • the present invention provides a touch panel 100.
  • the touch panel 100 includes: a substrate 110; a first electrode layer 120, the first electrode layer 120 is disposed on the substrate 110, and the first electrode layer 120 It includes: a plurality of first electrode chains 121 and a plurality of second electrode chains 122; the plurality of first electrode chains 121 are disposed on the substrate 110, and the plurality of first electrode chains 121 are arranged at intervals, each Each first electrode chain 121 includes a plurality of spaced first transparent electrodes 123; the plurality of second electrode chains 122 are disposed on the substrate 110, and the plurality of second electrode chains 122 are spaced apart, each The second electrode chain 122 includes a plurality of spaced apart second transparent electrodes 124, the second electrode chain 122 and the first electrode chain 121 are cross-insulated, and the second electrode chain 122 and the first electrode chain A connection portion 125 is formed at the intersection of 121, and the connection portion 125 includes a first connection portion 126, wherein the length direction of the first connection portion
  • the substrate 110 is a transparent substrate, for example, a glass substrate, a plastic substrate, or a flexible substrate.
  • the first electrode layer 120 is disposed on the substrate 110.
  • the first electrode layer 120 includes: a plurality of first electrode chains 121 and a plurality of second electrode chains 122.
  • the plurality of first electrode chains 121 are disposed on the substrate 110, and the plurality of first electrode chains 121 are arranged at intervals, and each first electrode chain 121 includes a plurality of spaced first transparent electrodes 123.
  • the plurality of second electrode chains 122 are disposed on the substrate 110, and the plurality of second electrode chains 122 are spaced apart.
  • Each second electrode chain 122 includes a plurality of spaced second transparent electrodes 124.
  • the second electrode chain 122 and the first electrode chain 121 are cross-insulated.
  • the first electrode chain 121 is a sensing electrode chain
  • the second electrode chain 122 is a driving electrode chain
  • the first transparent electrode 123 is a sensing electrode
  • the second transparent electrode 124 is a driving electrode.
  • the sensing electrode may also be referred to as a touch receiving electrode
  • the driving electrode may also be referred to as a touch transmitting electrode.
  • the first electrode chain 121 is a driving electrode chain
  • the second electrode chain 122 is a sensing electrode chain
  • the first transparent electrode 123 is a driving electrode
  • the second transparent electrode 124 is a sensing electrode.
  • the first electrode chain 121 and the second electrode chain 122 are disposed on the same layer and are made of the same material, for example, the same transparent conductive material, Specifically, it may be made of indium tin oxide (ITO) or indium gallium zinc oxide (IGZO) or metal materials with good light transmittance. Therefore, the materials of the first transparent electrode 123 and the second transparent electrode 124 are also the same, and can be made of a transparent conductive material or a metal material. Thus, the patterning process can be formed at the same time, simplifying the process.
  • ITO indium tin oxide
  • IGZO indium gallium zinc oxide
  • the first electrode chain 121 and the second electrode chain 122 are disposed on different layers, and the first connection portion 126 and the first electrode chain 121 are disposed on the same layer. That is, the first connection portion 126 and the second electrode chain 122 are not on the same layer.
  • the first transparent electrode 123 and the second transparent electrode 124 are a block structure made of a transparent conductive material.
  • the first transparent electrode 123 and the second transparent electrode 124 are both metals, and the first electrode layer 120 composed of the first electrode chain 121 and the second electrode chain 122 has a network structure.
  • the first transparent electrode 123 and the second transparent electrode 124 may be formed in various shapes, such as a diamond shape, a square shape, a rectangular shape, etc. The present invention does not limit this.
  • the adjacent first transparent electrode 123 in each first electrode chain 121 is in a diamond shape or a shape along a first direction
  • the vertices of the square shape are electrically connected by the first connection portion 126, and the adjacent second electrodes in each second electrode chain 122 are electrically connected to each other at the apex of the diamond shape or square shape in the second direction.
  • the first direction may be either the X direction or the Y direction; the second direction may be either the X direction or the Y direction.
  • the sensing electrode is an electrode corresponding to a first direction (also may be referred to as a horizontal direction)
  • the driving electrode is an electrode corresponding to a second direction (also may be referred to as a vertical direction).
  • the first connection portion 126 is provided on the second electrode layer 130.
  • the material of the first connection portion 126 may be indium tin oxide. Therefore, the material of the first connection portion 126 is the same as the material of the first transparent electrode 123 and the second transparent electrode 124. Of course, in other embodiments, the material of the first connection portion 126 may also be other transparent conductive materials.
  • a first insulating layer 120 is provided between the first connection portion 126 and the first transparent electrode 123 and the second transparent electrode 124, and the first insulating layer 120 opens a first corresponding to the first transparent electrode 123 Through holes 129, both ends of the first connection portion 126 are in contact with the first transparent electrode 123 via the first through holes 129 penetrating the first insulating layer 120.
  • auxiliary electrodes 127 are provided in the second electrode layer 130.
  • the material of the auxiliary electrode 127 is the same as the material of the first connection portion 126, both of which are indium tin oxide.
  • Each of the auxiliary electrodes 127 is disposed at a position corresponding to the etching gap region 128 formed by the adjacent first transparent electrode 123 and the second transparent electrode 124.
  • the auxiliary electrode 127 is electrodeless.
  • the first transparent electrode 123 and the second transparent electrode 124, and the auxiliary electrode 127 are set to be electrodeless, the first transparent electrode 123 and the second The capacitance of the transparent electrode 124. Further, the non-electrode first connection portion 126 is provided in the second electrode layer 130, so that the non-electrode first connection portion 126 can be avoided in the first electrode layer 120 due to the etching gap If it is too small, there is a risk of short circuit between the first transparent electrode 123 and the second transparent electrode 124 caused by etching residue.
  • the present invention provides a method for adding the ITO material to the position of the second electrode layer 130 and corresponding to the etched gap area of the first electrode layer 120 to achieve the effect of the second electrode layer 130 on the first electrode layer 120.
  • the gap area is etched to compensate for the ITO material, so that the ITO material almost covers the entire effective area of the touch panel 100.
  • the first electrode layer 120 and the second electrode layer 130 have the same stacked structure, so that the touch
  • the light transmittance of the control panel 100 on the entire panel is the same, thus effectively solving the visibility problem caused by the inconsistent light transmittance caused by the ITO etching gap.
  • a second insulating layer 140 is provided on the second electrode layer 130, and the second insulating layer 140 covers the first connection portion 126 and the plurality of auxiliary electrodes 127.
  • the materials of the second insulating layer 140 and the first insulating layer 120 may be silicon oxide, silicon nitride, or a combination of both.
  • connection portion 125 may further include a second connection portion (not shown in the figure), the second connection portion and the first connection portion 126 are cross-insulated, and the second connection Is used to electrically connect two adjacent second transparent electrodes 124 on the same second electrode chain 122.
  • the second connection portion is formed by the second transparent electrode 124 itself extending.
  • the touch panel 100 further includes an edge lead 131 and a driving part 132, the edge lead 131 is electrically connected to the first electrode layer 120 and the driving part 132, and the driving part 132 is connected to a peripheral circuit Touch driver chip (not shown).
  • FIG. 6 is a schematic diagram of a touch display device according to an embodiment of the invention.
  • the present invention also provides a touch display device 200.
  • the touch display device 200 includes the touch panel 100 provided in any one of the foregoing embodiments, and details are not described herein again.
  • the touch display device may be, but not limited to, an e-book, a smart phone, a digital TV, a tablet computer, a palmtop computer, a notebook computer, a mobile Internet device, or a wearable device.
  • the touch panel 100 of the present invention can not only effectively solve the visibility problem caused by the etching gap of the existing touch panel using ITO material, but also by setting the auxiliary electrode 127 on the second electrode layer 120 above the first electrode layer 120
  • the electrode layer 130 is matched with the first electrode layer 120, so as to effectively avoid the short circuit of the touch electrode caused by the etching residue.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
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Abstract

一种触控面板（100）及触控显示装置，所述触控面板（100）不仅能够有效解决现有的触控面板（100）使用ITO材料因刻蚀间隙而引起的可视性问题，而且通过将辅助电极（127）设置在位于第一电极层（120）上方的第二电极层（130），以与第一电极层（120）相匹配，从而有效地避免刻蚀残留导致的触控电极短路等问题。

Description

触控面板及触控显示装置 技术领域
本发明涉及触控技术领域，尤其涉及一种触控面板及触控显示装置。
 背景技术
柔性触控显示是未来极具竞争优势的显示技术。柔性触控显示器的一大优点是可弯折，这样可以获得更大的显示区域而占据的空间较小，方便携带及应用。现有的柔性触控显示器通常采用柔性基板，并且在柔性基板上依次制作出薄膜电晶体、有机发光二极体等元件，最后加上偏光片、触摸屏和保护玻璃。
 技术问题
但是，随着柔性触控显示器的显示PPI越来越高，由于ITO覆盖区域和非ITO覆盖区域的光穿透率的影响不一致，在相同的显示的情况下，容易出现蚀刻纹等可视性问题。
 技术解决方案
本发明的目的在于，提供一种触控面板，其不仅能够有效解决现有的触控面板使用ITO材料因刻蚀间隙而引起的可视性问题，而且通过将辅助电极设置在位于第一电极层上方的第二电极层，以与第一电极层相匹配，从而有效地避免刻蚀残留导致的触控电极短路等问题。
根据本发明的一方面，本发明提供一种触控面板，所述触控面板包括：基板；第一电极层，所述第一电极层设置在所述基板上，所述第一电极层包括：多个第一电极链和多个第二电极链；所述多个第一电极链间隔排布，每个第一电极链包括多个间隔的第一透明电极；所述多个第二电极链间隔排布，每个第二电极链包括多个间隔的第二透明电极，所述第二电极链与所述第一电极链交叉绝缘设置，在所述第二电极链与所述第一电极链的交叉处形成连接部，所述连接部包括第一连接部，所述第一连接部用于电连接同一个所述第一电极链上相邻的两个所述第一透明电极；第二电极层，所述第二电极层设置在所述第一电极层上，所述第二电极层包括：多个辅助电极，每一所述辅助电极设置在与相邻所述第一透明电极和所述第二透明电极所形成的刻蚀间隙区相对应的位置。
在本发明的一实施例中，所述辅助电极为无电极性。
在本发明的一实施例中，所述第一连接部设置于所述第二电极层，所述第一连接部与所述第一透明电极和所述第二透明电极之间设置第一绝缘层，所述第一绝缘层对应所述第一透明电极开设第一通孔，所述第一连接部的两端分别经由贯穿所述第一绝缘层的所述第一通孔与所述第一透明电极相接触。
在本发明的一实施例中，在所述第二电极层上设置一第二绝缘层，所述第二绝缘层覆盖所述第一连接部和所述多个辅助电极。
在本发明的一实施例中，所述连接部还包括第二连接部，所述第二连接部与所述第一连接部交叉绝缘设置，且所述第二连接部用于电连接同一个所述第二电极链上相邻的两个所述第二透明电极。
在本发明的一实施例中，所述第一透明电极和所述第二透明电极的材料为相同，均采用氧化铟锡制成。
在本发明的一实施例中，所述辅助电极的材料为氧化铟锡。
在本发明的一实施例中，所述第一绝缘层和所述第二绝缘层的材料为氧化硅、氮化硅或两者的组合。
在本发明的一实施例中，所述第一电极链为感应电极链，所述第二电极链为驱动电极链；或者所述第一电极链为驱动电极链，所述第二电极链为感应电极链。
在本发明的一实施例中，所述触控面板还包括边缘引线和驱动部，所述边缘引线电连接至所述第一电极层和所述驱动部，所述驱动部连接至外部的触控驱动芯片。
根据本发明的另一方面，本发明还提供一种触控显示装置，所述触控显示装置包括上述触控面板。
 有益效果
本发明的优点在于，本发明的触控面板不仅能够有效解决现有的触控面板使用ITO材料因刻蚀间隙而引起的可视性问题，而且通过将辅助电极设置在位于第一电极层上方的第二电极层，以与第一电极层相匹配，从而有效地避免刻蚀残留导致的触控电极短路等问题。
 附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明一实施例中的触控面板的爆炸示意图。
图2A和图2B是本发明所述实施例中的第一电极层和第二电极层的示意图。
图3A和图3B是传统触控面板的示意图，图3B是图3A所示的区域A的局部放大示意图。
图4A和图4B是本发明所述实施例中的触控面板的示意图，图4B是图4A所示的区域B的局部放大示意图。
图5是本发明所述实施例中的触控面板的剖视图。
图6是本发明一实施例中的触控显示装置的示意图。
 本发明的实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，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，都属于本发明保护的范围。
本发明的说明书和权利要求书以及上述附图中的术语“第一”、“第二”、“第三”等（如果存在）是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应当理解，这样描述的对象在适当情况下可以互换。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含。
在本专利文档中，下文论述的附图以及用来描述本发明公开的原理的各实施例仅用于说明，而不应解释为限制本发明公开的范围。所属领域的技术人员将理解，本发明的原理可在任何适当布置的系统中实施。将详细说明示例性实施方式，在附图中示出了这些实施方式的实例。此外，将参考附图详细描述根据示例性实施例的终端。附图中的相同附图标号指代相同的元件。
本发明说明书中使用的术语仅用来描述特定实施方式，而并不意图显示本发明的概念。除非上下文中有明确不同的意义，否则，以单数形式使用的表达涵盖复数形式的表达。在本发明说明书中，应理解，诸如“包括”、“具有”以及“含有”等术语意图说明存在本发明说明书中揭示的特征、数字、步骤、动作或其组合的可能性，而并不意图排除可存在或可添加一个或多个其他特征、数字、步骤、动作或其组合的可能性。附图中的相同参考标号指代相同部分。
本发明实施例提供一种触控面板及触控显示装置。以下将分别进行详细说明。
参阅图1至图5，图1是本发明一实施例中的触控面板的爆炸示意图。图2A和图2B是本发明所述实施例中的第一电极层和第二电极层的示意图。图3A和图3B是传统触控面板的示意图，图3B是图3A所示的区域A的局部放大示意图。图4A和图4B是本发明所述实施例中的触控面板的示意图，图4B是图4A所示的区域B的局部放大示意图。图5是本发明所述实施例中的触控面板的剖视图。
本发明提供了一种触控面板100，所述触控面板100包括：基板110；第一电极层120，所述第一电极层120设置在所述基板110上，所述第一电极层120包括：多个第一电极链121和多个第二电极链122；所述多个第一电极链121设置在所述基板110上，且所述多个第一电极链121间隔排布，每个第一电极链121包括多个间隔的第一透明电极123；所述多个第二电极链122设置在所述基板110上，且所述多个第二电极链122间隔排布，每个第二电极链122包括多个间隔的第二透明电极124，所述第二电极链122与所述第一电极链121交叉绝缘设置，在所述第二电极链122与所述第一电极链121的交叉处形成连接部125，所述连接部125包括第一连接部126，其中，所述第一连接部126的长度方向与所述触控面板100的弯曲轴方向一致；所述第一连接部126用于电连接同一个所述第一电极链121上相邻的两个所述第一透明电极123；第二电极层130，所述第二电极层130设置在所述第一电极层120上，所述第二电极层130包括：多个辅助电极127，每一所述辅助电极127设置在与相邻所述第一透明电极123和所述第二透明电极124所形成的刻蚀间隙区128相对应的位置。
具体地，所述基板110为透明基板、例如为玻璃基板、塑料基板，也可以为柔性基板。
所述第一电极层120设置在所述基板110上，所述第一电极层120包括：多个第一电极链121和多个第二电极链122。
所述多个第一电极链121设置在所述基板110上，且所述多个第一电极链121间隔排布，每个第一电极链121包括多个间隔的第一透明电极123。
所述多个第二电极链122设置在所述基板110上，且所述多个第二电极链122间隔排布，每个第二电极链122包括多个间隔的第二透明电极124，所述第二电极链122与所述第一电极链121交叉绝缘设置。
可选的，所述第一电极链121为感应电极链，所述第二电极链122为驱动电极链，此时第一透明电极123为感应电极，第二透明电极124为驱动电极。所述感应电极亦可称为触控接收电极、所述驱动电极亦可称为触控发送电极。在其他实施例中，所述第一电极链121为驱动电极链，所述第二电极链122为感应电极链，此时第一透明电极123为驱动电极，第二透明电极124为感应电极。
参阅图1和图5所示，在本实施例中，所述第一电极链121和所述第二电极链122设置在同一层，并且有相同材料制成，例如由相同的透明导电材料，具体地，可以为透光性好的氧化铟锡（ITO）或铟镓锌氧化物（IGZO）或金属材料制成。因此，所述第一透明电极123和所述第二透明电极124的材料也是相同的，可以由透明导电材料或金属材料制成。于是，可以通过一次构图工艺同时形成，简化了工艺。
在其他部分实施例中，所述第一电极链121和所述第二电极链122设置在不同层，所述第一连接部126与所述第一电极链121设置在同一层。亦即，所述第一连接部126与所述第二电极链122不在同一层。
在本实施例中，所述第一透明电极123和所述第二透明电极124由透明导电材料制成的块状结构。此处，第一透明电极123和第二透明电极124均为金属，所述第一电极链121和所述第二电极链122所组成的第一电极层120为网络状结构。第一透明电极123和第二透明电极124可以形成多种形状，例如菱形形状、正方形形状、矩形形状等，本发明对此不做限制。
优选的，在第一透明电极123和第二透明电极124具有菱形形状或正方形形状的情况下，每个第一电极链121中相邻的第一透明电极123沿一第一方向在菱形形状或正方形形状的顶点处通过所述第一连接部126电连接，每个第二电极链122中相邻的第二电极沿第二方向在菱形形状或正方形形状的顶点处彼此电连接。其中，第一方向既可以为X方向，也可以为Y方向；第二方向既可以为X方向，也可以为Y方向。当第一方向为X方向时，第二方向为Y方向；当第一方向为Y方向时，第二方向为X方向。在本实施例中，所述感应电极为沿第一方向（也可以称为水平方向）所对应的电极，所述驱动电极为沿第二方向（也可称为垂直方向）所对应的电极。
在本实施例中，所述第一连接部126设置于所述第二电极层130。优选的，所述第一连接部126的材料可以为氧化铟锡。因此，所述第一连接部126的材料与所述第一透明电极123和所述第二透明电极124的材料相同。当然，在其他部分实施例中，所述第一连接部126的材料也可以为其他透明导电材料。所述第一连接部126与所述第一透明电极123和所述第二透明电极124之间设置第一绝缘层120，所述第一绝缘层120对应所述第一透明电极123开设第一通孔129，所述第一连接部126的两端分别经由贯穿所述第一绝缘层120的所述第一通孔129与所述第一透明电极123相接触。
在所述第二电极层130中，除了设置第一连接部126，还设置有多个辅助电极127。优选的，所述辅助电极127的材料与所述第一连接部126的材料相同，均为氧化铟锡。每一所述辅助电极127设置在与相邻所述第一透明电极123和所述第二透明电极124所形成的刻蚀间隙区128相对应的位置。在本实施例中，优选地，所述辅助电极127为无电极性。由于在第一透明电极123与第二透明电极124之间的刻蚀间隙区128的对应位置，且辅助电极127（即dummy电极）设置无电极性，因此能够匹配第一透明电极123和第二透明电极124的容值。进一步而言，将无电极性的第一连接部126设置在第二电极层130中，这样就可以避免将无电极性的第一连接部126设置在第一电极层120中而因刻蚀间隙过小产生刻蚀残留等所导致的第一透明电极123和第二透明电极124之间短路的风险。
在传统触控面板中，相邻的第一透明电极123’和第二透明电极124’之间存在刻蚀间隙区128’，如图3B所示，而这些刻蚀间隙区128’未被ITO材料覆盖，于是，在相同显示条件下，容易出现刻蚀纹等可视性问题。也就是说，该可视性问题是由于ITO覆盖区和非ITO覆盖区的光学透率不一致所引起的。因此，本发明通过提供一种通过在第二电极层130且与第一电极层120的蚀刻间隙区相对应的位置添加ITO材料的方式，实现在第二电极层130对第一电极层120的蚀刻间隙区进行ITO材料补偿，使得ITO材料几乎布满整个触控面板100的有效区域，如图4A和图4B所示，第一电极层120与第二电极层130叠构一致，从而使得触控面板100在整个面板上的光透过率为相同，于是有效地解决了由于ITO蚀刻间隙产生光穿透率不一致所产生的可视性问题。
另外，在本实施例中，在所述第二电极层130上设置一第二绝缘层140，所述第二绝缘层140覆盖所述第一连接部126和所述多个辅助电极127。所述第二绝缘层140和所述第一绝缘层120的材料可以为氧化硅、氮化硅或两者的组合。
另外，在本实施例中，所述连接部125还可以包括第二连接部(图未标示)，所述第二连接部与所述第一连接部126交叉绝缘设置，且所述第二连接部用于电连接同一个所述第二电极链122上相邻的两个所述第二透明电极124。可选的，所述第二连接部由所述第二透明电极124自身延伸而形成。
另外，所述触控面板100还包括边缘引线131和驱动部132，所述边缘引线131电连接至所述第一电极层120和所述驱动部132，所述驱动部132连接至外围电路上的触控驱动芯片（图未标示）。
参阅图6，图6是本发明一实施例中的触控显示装置的示意图。本发明还提供一种触控显示装置200，所述触控显示装置200包括上文任意一实施例提供的触控面板100，在此不再赘述。触控显示装置可以为但不仅限于电子书、智能手机、数字电视、平板电脑、掌上电脑、笔记本电脑、移动互联网设备或穿戴式设备等。
本发明的触控面板100不仅能够有效解决现有的触控面板使用ITO材料因刻蚀间隙而引起的可视性问题，而且通过将辅助电极127设置在位于第一电极层120上方的第二电极层130，以与第一电极层120相匹配，从而有效地避免刻蚀残留导致的触控电极短路等问题。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。
 工业实用性
本申请的主题可以在工业中制造和使用，具备工业实用性。

Claims (11)

  1. 一种触控面板，其中所述触控面板包括：
    一基板；
    一第一电极层，所述第一电极层设置在所述基板上，所述第一电极层包括：多个第一电极链和多个第二电极链；
    所述多个第一电极链间隔排布，每个第一电极链包括多个间隔的第一透明电极；
    所述多个第二电极链间隔排布，每个第二电极链包括多个间隔的第二透明电极，所述第二电极链与所述第一电极链交叉绝缘设置，在每一所述第二电极链与每一所述第一电极链的交叉处形成一连接部，所述连接部包括一第一连接部，所述第一连接部用于电连接同一个所述第一电极链上相邻的两个所述第一透明电极；
    一第二电极层，所述第二电极层设置在所述第一电极层上，所述第二电极层包括：
    多个辅助电极，每一所述辅助电极设置在与相邻所述第一透明电极和所述第二透明电极所形成的刻蚀间隙区相对应的位置。
  2. 根据权利要求1所述的触控面板，其中所述辅助电极为无电极性。
  3. 根据权利要求1所述的触控面板，其中所述第一连接部设置于所述第二电极层，所述第一连接部与所述第一透明电极和所述第二透明电极之间设置一第一绝缘层，所述第一绝缘层对应所述第一透明电极开设一第一通孔，所述第一连接部的两端分别经由贯穿所述第一绝缘层的所述第一通孔与所述第一透明电极相接触。
  4. 根据权利要求3所述的触控面板，其中在所述第二电极层上设置一第二绝缘层，所述第二绝缘层覆盖所述第一连接部和所述多个辅助电极。
  5. 根据权利要求1所述的触控面板，其中所述连接部还包括一第二连接部，所述第二连接部与所述第一连接部交叉绝缘设置，且所述第二连接部用于电连接同一个所述第二电极链上相邻的两个所述第二透明电极。
  6. 根据权利要求1所述的触控面板，其中所述第一透明电极和所述第二透明电极的材料为相同，均采用氧化铟锡制成。
  7. 根据权利要求1所述的触控面板，其中所述辅助电极的材料为氧化铟锡。
  8. 根据权利要求4所述的触控面板，其中所述第一绝缘层和所述第二绝缘层的材料为氧化硅、氮化硅或两者的组合。
  9. 根据权利要求1所述的触控面板，其中所述第一电极链为感应电极链，所述第二电极链为驱动电极链；或者所述第一电极链为驱动电极链，所述第二电极链为感应电极链。
  10. 根据权利要求1所述的触控面板，其中所述触控面板还包括多个边缘引线和一驱动部，所述边缘引线电连接至所述第一电极层和所述驱动部，所述驱动部连接至外部的触控驱动芯片。
  11. 一种触控显示装置，其中所述触控显示装置包括权利要求1所述的触控面板。
PCT/CN2019/085555 2018-12-12 2019-05-05 触控面板及触控显示装置 Ceased WO2020119015A1 (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090084613A1 (en) * 2007-09-28 2009-04-02 Au Optronics Corporation Capacitive Touch Panel with Low Coupling Capacitance and Display Device Using the Capacitive Touch Panel
CN104090675A (zh) * 2014-06-16 2014-10-08 信利半导体有限公司 触摸屏的功能片及触摸屏
CN204166518U (zh) * 2014-10-15 2015-02-18 福建省辉锐电子技术有限公司 一种ogs电容式触摸屏
CN104679340A (zh) * 2015-03-20 2015-06-03 合肥鑫晟光电科技有限公司 触控基板和显示装置
CN109542274A (zh) * 2018-12-12 2019-03-29 武汉华星光电半导体显示技术有限公司 触控面板及触控显示装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4720857B2 (ja) * 2008-06-18 2011-07-13 ソニー株式会社 静電容量型入力装置および入力機能付き表示装置
CN101976146B (zh) * 2010-10-12 2012-05-30 友达光电股份有限公司 触控面板的制造方法
TWI627564B (zh) * 2013-05-20 2018-06-21 友達光電股份有限公司 觸控面板及其製造方法
CN103744568A (zh) * 2014-01-13 2014-04-23 深圳莱宝高科技股份有限公司 一种触控面板及其制作方法
CN108958541B (zh) * 2018-06-28 2023-09-29 京东方科技集团股份有限公司 触控基板及制造方法、触控显示面板及装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090084613A1 (en) * 2007-09-28 2009-04-02 Au Optronics Corporation Capacitive Touch Panel with Low Coupling Capacitance and Display Device Using the Capacitive Touch Panel
CN104090675A (zh) * 2014-06-16 2014-10-08 信利半导体有限公司 触摸屏的功能片及触摸屏
CN204166518U (zh) * 2014-10-15 2015-02-18 福建省辉锐电子技术有限公司 一种ogs电容式触摸屏
CN104679340A (zh) * 2015-03-20 2015-06-03 合肥鑫晟光电科技有限公司 触控基板和显示装置
CN109542274A (zh) * 2018-12-12 2019-03-29 武汉华星光电半导体显示技术有限公司 触控面板及触控显示装置

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