WO2018024085A1 - 触控面板及显示装置 - Google Patents

触控面板及显示装置 Download PDF

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Publication number
WO2018024085A1
WO2018024085A1 PCT/CN2017/092682 CN2017092682W WO2018024085A1 WO 2018024085 A1 WO2018024085 A1 WO 2018024085A1 CN 2017092682 W CN2017092682 W CN 2017092682W WO 2018024085 A1 WO2018024085 A1 WO 2018024085A1
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WO
WIPO (PCT)
Prior art keywords
touch
disposed
light shielding
touch panel
shielding layer
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Application number
PCT/CN2017/092682
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English (en)
French (fr)
Inventor
郑启涛
胡明
张明
朱雨
许世峰
田新斌
陈彤
刘纯建
王静
Original Assignee
京东方科技集团股份有限公司
合肥鑫晟光电科技有限公司
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Application filed by 京东方科技集团股份有限公司, 合肥鑫晟光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/742,759 priority Critical patent/US10409407B2/en
Publication of WO2018024085A1 publication Critical patent/WO2018024085A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/13338—Input devices, e.g. touch panels
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—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; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/047—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using sets of wires, e.g. crossed wires
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04107—Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04111—Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/40—OLEDs integrated with touch screens

Definitions

  • Embodiments of the present disclosure relate to a touch panel and a display device.
  • Capacitive touch screens are attracting more and more attention due to their precise positioning, good touch and long service life.
  • One Glass Solution (OGS) technology refers to forming a touch structure on the cover glass, and the cover glass serves the dual functions of protection function and touch function. Among them, a light shielding layer is also formed in the peripheral region of the cover glass for shielding the wiring and decoration.
  • the touch structure 10 in order to increase the touch effect of the edge of the central area 01 of the display device, not only the touch structure 10 is disposed in the central area 01 but also the touch area of the peripheral area 02 near the central area 01 is provided.
  • Structure 10 causes the touch structure 10 disposed in the peripheral area 02 to overlap with the light shielding layer (not shown in FIG. 1) of the peripheral area 02, and the light shielding layer further includes a conductive element, which has a certain conductive effect, and thus The peripheral area 02 of the cover glass is prone to ESD (Electro-Static Discharge), which causes the performance of the cover glass to be degraded or even destroyed, thereby reducing product yield.
  • ESD Electro-Static Discharge
  • At least one embodiment of the present disclosure provides a touch panel including a touch structure disposed on a substrate, the touch structure being disposed in a central area of the substrate and a peripheral area adjacent to the central area a portion; further comprising a light shielding layer disposed in the peripheral region and a first coating protective layer covering at least the light shielding layer, the first coating protection layer being disposed between the light shielding layer and the touch structure .
  • the first coating protective layer is further disposed at a portion located in the central region, and the first coating protective layer is located at an edge of the central region and adjacent to the The distance between the edges of the central zone is less than 50 ⁇ m.
  • the touch structure includes a first touch that is crossed and insulated from each other
  • the control electrode and the second touch electrode are electrically connected in the intersection area by a connecting wire.
  • the connecting wire is disposed between the second touch electrode and the substrate; the connecting wire and the second touch electrode are separated by an insulating block; The insulating block is disposed in the same layer as the first coating protective layer.
  • the connecting wire is disposed on a side of the second touch electrode away from the substrate; the connecting wire is separated from the second touch electrode by an insulating block;
  • the control panel further includes a metal trace disposed in the peripheral region; wherein the connecting wire is made of a metal material, and the connecting wire is disposed in the same layer as the metal trace.
  • the touch panel further includes a second coating protection layer disposed on a side of the metal trace away from the substrate.
  • the touch panel further includes a third coating protection layer disposed in the central area and the peripheral area, and located at the shielding layer away from One side of the substrate is in contact with the light shielding layer.
  • the light shielding layer is a white light shielding layer or a black light shielding layer.
  • the light shielding layer contains a conductive element.
  • At least one embodiment of the present disclosure provides a display device including the above touch panel.
  • the display device further includes a display panel; the display panel is a liquid crystal display panel or an OLED display panel.
  • the touch panel and the display device by providing a first coating protective layer between the light shielding layer and the touch structure in the peripheral region, and covering the first coating protective layer with the light shielding layer, The light shielding layer and the touch structure are isolated; wherein, because the first coating protection layer does not contain conductive elements, the anti-ESD capability of the peripheral region can be effectively improved, thereby improving product yield.
  • FIG. 1 is a top plan view of a cover glass according to a conventional technique
  • FIG. 2 is a top plan view of a touch panel according to an embodiment of the present disclosure
  • Figure 3 is a cross-sectional view taken along line AA' of Figure 2;
  • FIG. 4 is a top plan view 2 of a touch panel according to an embodiment of the present disclosure.
  • Figure 5 is a cross-sectional view of Figure BB'
  • Figure 6 is a cross-sectional view of Figure 2 taken along line BB';
  • Figure 7 is a cross-sectional view of Figure BB'
  • Figure 8 is a cross-sectional view of Figure 4 taken along line BB' of Figure 4;
  • FIG. 9 is a schematic structural view of a display device according to an embodiment of the present disclosure.
  • the touch panel 03 includes a substrate 100 and a touch structure 10 disposed on the substrate;
  • the control structure 10 is disposed at a central portion 01 of the substrate 100 and a portion of the peripheral region 02 near the central region 01;
  • the touch panel 03 further includes a light shielding layer 20 disposed in the peripheral region 02 and a first covering at least the light shielding layer 20
  • An overcoat (OC) layer 30 is disposed; wherein the light shielding layer 20 contains a conductive element; and the first coating protective layer 30 is disposed between the light shielding layer 20 and the touch structure 10.
  • the structure of the touch structure 10 is not limited in the present disclosure, and the touch structure 10 in FIG. 1 is only schematic.
  • the central area 01 described herein is an area for screen display when the touch panel 03 is applied to the display device, and the peripheral area 02 is located at the periphery of the central area 01.
  • the first coating protective layer 30 covering at least the light shielding layer 20 means that the projection of the light shielding layer 20 on the substrate 100 completely falls within the projection of the first coating protective layer 30 on the substrate 100.
  • the substrate 100 can be, for example, a transparent substrate.
  • the first coating protective layer 30 located between the light shielding layer 20 and the touch structure 10 is disposed in the peripheral region 02, and the first coating protective layer 30 is covered by the light shielding.
  • the layer 20 isolates the light shielding layer 20 from the touch structure 10; wherein, since the first coating protection layer 30 does not contain a conductive element, the anti-ESD capability of the peripheral region 02 can be effectively improved, thereby improving product yield.
  • the first coating protective layer 30 further includes a portion located in the central portion 01, and the distance between the edge of the first coating protective layer 30 located in the central region 01 and the edge adjacent to the central region 01 is H is less than 50 ⁇ m.
  • the distance H may be 10-50 ⁇ m, wherein the length may be, for example, 20 ⁇ m, 30 ⁇ m, 40 ⁇ m, 50 ⁇ m, or the like.
  • the overall thickness of the first coating protective layer 30 and the light shielding layer 20 of the peripheral region 02 is thick, and there is a high step difference between the peripheral region 02 and the central region 01, by extending the first coating protective layer to the central region 01, The step difference generated by the first coating protective layer 30 and the light shielding layer 20 can be smoothly transitioned, which reduces the difficulty of the subsequent process.
  • the distance H is set to 50 ⁇ m or less, and the first coating protection layer 30 can be covered to the touch structure 10 as little as possible to avoid affecting the touch performance.
  • the touch structure 10 includes a first touch electrode 101 and a second touch electrode 102 that are crossed and insulated from each other.
  • the first touch electrode 101 or the second touch electrode 102 pass through the intersection area.
  • the connecting wires 103 are electrically connected.
  • first touch electrode 101 and the second touch electrode 102 may be disposed in the same layer or may be disposed in different layers.
  • the first touch electrodes 101 or the second touch electrodes 102 are connected by the connecting wires 103 at the intersection regions.
  • FIG. 4 and 5 illustrate an example in which the first touch electrodes 101 are electrically connected through the connecting wires 103 at the intersection regions.
  • the connecting wire 103 is disposed between the second touch electrode 102 and the substrate 100 ; the connecting wire 103 and the second touch electrode 102 are separated by the insulating block 104 .
  • the insulating block 104 is disposed in the same layer as the first coating protective layer 30.
  • the first touch electrode 101 and the second touch electrode 102 are both made of a transparent conductive material, such as ITO (Indium Tin Oxide), IZO (Indium Zinc Oxide), or the like.
  • the insulating block 104 is disposed in the same layer as the first coating protective layer 30, that is, the insulating block 104 and the first coating protective layer 30 are formed by the same patterning process.
  • the number of patterning processes can be reduced, and the aperture ratio can be increased.
  • first touch electrodes 101 and the second touch electrodes 102 are formed, metal traces electrically connected to the first touch electrodes 101 and the second touch electrodes 102 may be formed, and the metal traces may be used for the metal traces. Connected to an IC (Integrated Circuit).
  • IC Integrated Circuit
  • the touch panel 03 may further include a second coating protection layer (not shown) disposed on a side of the metal trace away from the substrate 100. That is, after the metal trace is formed, a second coating protective layer is formed in the peripheral region 02, and the second coating protective layer covers the metal trace.
  • a second coating protection layer (not shown) disposed on a side of the metal trace away from the substrate 100. That is, after the metal trace is formed, a second coating protective layer is formed in the peripheral region 02, and the second coating protective layer covers the metal trace.
  • the connecting wire 103 is disposed on a side of the second touch electrode 102 away from the substrate 100 ; the connecting wire 103 and the second touch electrode 102 pass through the insulating block 104 . isolation.
  • the touch panel 03 further includes a metal trace 105 disposed in the peripheral region 02; the material of the connecting wire 103 is a metal material, and the connecting wire 103 is disposed in the same layer as the metal trace 105.
  • the connecting wires 103 and the metal traces 105 may be formed by the same patterning process. Forming the connecting wire 103 and the metal trace 105 by the same patterning process can be reduced Less number of composition processes.
  • the touch panel 03 further includes a second coating protection layer 50 disposed on a side of the metal trace away from the substrate 100. That is, after the metal trace 105 is formed, a second coating protective layer 50 is formed in the peripheral region 02, and the second coating protective layer covers the metal trace 105.
  • the touch panel 03 further includes a third coating protection layer 40 disposed on the central area 01 and the peripheral area 02 and located at The light shielding layer 20 is away from the side of the substrate 100 and is in contact with the light shielding layer 20.
  • the strength of the substrate 100 can be improved by providing the third coating protective layer 40.
  • the light shielding layer 20 is a white light shielding layer or a black light shielding layer.
  • At least one implementation of the present disclosure also provides a display device including the above-described touch panel 03.
  • the display device may be a product or component having any display and touch function, such as a display, a television, a mobile phone, a tablet computer, or the like.
  • the first coating protective layer 30 located between the light shielding layer 20 and the touch structure 10 is disposed in the peripheral region 02 of the touch panel 03, and the first coating protective layer is provided
  • the cover layer 20 is covered by the light-shielding layer 20, and the light-shielding layer 20 is isolated from the touch structure 10; wherein, since the first coating protection layer 30 does not contain conductive elements, the anti-ESD capability of the peripheral region 02 can be effectively improved, thereby improving the product. Yield.
  • the display device further includes a display panel 04 , and the touch panel 03 is disposed on the light exiting side of the display panel 04 .
  • the display panel 04 and the touch panel 03 can be connected by an Optical Clear Resin (OCR) 05.
  • OCR Optical Clear Resin
  • the display panel 04 When the display panel 04 is a liquid crystal display panel, it includes an array substrate, a counter substrate, and a liquid crystal layer disposed therebetween.
  • the array substrate may include a Thin Film Transistor (TFT), a pixel electrode electrically connected to the drain of the TFT, and further may include a common electrode.
  • the counter substrate may include a black matrix and a color film.
  • the color film may be disposed on the opposite substrate or on the array substrate; the common electrode may be disposed on the array substrate or may be disposed on the opposite substrate.
  • the display panel 04 When the display panel 04 is an OLED (Organic Light Emitting Diode) display panel, it includes an array substrate and a package substrate.
  • the array substrate may include a TFT, an anode electrically connected to the drain of the TFT, a cathode, and an organic material functional layer between the anode and the cathode.

Abstract

一种触控面板(03)和显示装置，其中触控面板(03)包括衬底(100)以及设置在衬底(100)上的触控结构(10)；触控结构(10)设置在衬底(100)的中心区(01)以及周边区(02)的靠近中心区(01)的部分；其还包括设置在周边区(02)的遮光层(20)以及至少覆盖遮光层(20)的第一涂覆保护层(30)；其中，第一涂覆保护层(30)设置在遮光层(20)和触控结构(10)之间。

Description

触控面板及显示装置 技术领域
本公开的实施例涉及一种触控面板及显示装置。
背景技术
随着显示技术的发展，触控屏(Touch Panel)技术进入快速发展的时期。由于电容式触控屏具有定位精确灵敏、触摸手感好以及使用寿命长等特点，越来越多的受到关注。
一体化触控(One Glass Solution，简称OGS)技术是指在盖板玻璃上形成触控结构，盖板玻璃同时起到保护功能和触控功能的双重作用。其中，在盖板玻璃的周边区还形成遮光层，用来屏蔽走线以及装饰。
目前，如图1所示，为了增加显示装置中心区01边缘的触控效果，不仅在中心区01设置触控结构10，还会在周边区02的靠近所述中心区01的部分设置触控结构10。但是这样就会导致设置在周边区02的触控结构10与周边区02的遮光层(图1中未标识出)搭接，而遮光层中还包括导电元素，具有一定的导电作用，因而在盖板玻璃的周边区02容易产生ESD(Electro-Static Discharge，静电放电)，造成盖板玻璃的性能下降甚至被破坏，从而降低产品良率。
发明内容
本公开的至少一个实施例提供了一种触控面板，包括设置在衬底上的触控结构，所述触控结构设置在所述衬底的中心区以及周边区的靠近所述中心区的部分；还包括设置在所述周边区的遮光层以及至少覆盖所述遮光层的第一涂覆保护层，所述第一涂覆保护层设置在所述遮光层和所述触控结构之间。
在本公开的一个实施例中，所述第一涂覆保护层还设置在位于所述中心区的部分，且所述第一涂覆保护层位于所述中心区内的边缘与临近的所述中心区边缘的距离小于50μm。
在本公开的一个实施例中，所述触控结构包括交叉且相互绝缘的第一触 控电极和第二触控电极，所述第一触控电极在交叉区域通过连接导线电连接。
在本公开的一个实施例中，所述连接导线设置在所述第二触控电极与所述衬底之间；所述连接导线与所述第二触控电极通过绝缘块隔离；其中，所述绝缘块与所述第一涂覆保护层同层设置。
在本公开的一个实施例中，所述连接导线设置在所述第二触控电极远离所述衬底一侧；所述连接导线与所述第二触控电极通过绝缘块隔离；所述触控面板还包括设置在所述周边区的金属走线；其中，所述连接导线由金属材料制成，且所述连接导线与所述金属走线同层设置。
在本公开的一个实施例中，所述触控面板还包括设置在所述金属走线远离所述衬底一侧的第二涂覆保护层。
在本公开的一个实施例中，所述触控面板还包括第三涂覆保护层，所述第三涂覆保护层设置在所述中心区和所述周边区，并位于所述遮光层远离所述衬底一侧且与所述遮光层接触。
在本公开的一个实施例中，所述遮光层为白色遮光层或黑色遮光层。
在本公开的一个实施例中，所述遮光层含有导电元素。
本公开的至少一个实施例提供了一种显示装置，包括上述触控面板。
在本公开的一个实施例中，所述显示装置还包括显示面板；所述显示面板为液晶显示面板或OLED显示面板。
在根据本公开实施例的触控面板及显示装置中，通过在周边区设置位于遮光层和触控结构之间的第一涂覆保护层，且使第一涂覆保护层覆盖遮光层，可将遮光层和触控结构隔离；其中，由于第一涂覆保护层中不含导电元素，因而可有效提高周边区的抗ESD能力，从而可提高产品良率。
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为根据惯常技术的一种盖板玻璃的俯视示意图；
图2为根据本公开的一个实施例的触控面板的俯视示意图一；
图3为图2中AA′向剖视示意图；
图4为根据本公开的一个实施例提供的触控面板的俯视示意图二；
图5为图4中BB′向剖视示意图一；
图6为图4中BB′向剖视示意图二；
图7是图4中BB′向剖视示意图三
图8为图4中BB′向剖视示意图四；以及
图9为根据本公开的一个实施例的显示装置的结构示意图。
附图标记：
01-中心区；
02-周边区；
03-触控面板；
04-显示面板；
05-OCR；
10-触控结构；
20-遮光层；
30-第一涂覆保护层；
50-第二涂覆保护层
40-第三涂覆保护层；
100-衬底；
101-第一触控电极；
102-第二触控电极；
103-连接导线；
104-绝缘块；
105-金属走线。
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。
本公开的至少一个实施例提供了一种触控面板03，如图2和图3所示，所述触控面板03包括衬底100和设置在所述衬底上的触控结构10；触控结构10设置在衬底100的中心区01以及周边区02的靠近中心区01的部分；所述触控面板03还包括设置在周边区02的遮光层20以及至少覆盖遮光层20的第一涂覆保护(over coating，OC)层30；其中，遮光层20中含有导电元素；第一涂覆保护层30设置在遮光层20和触控结构10之间。
需要说明的是，第一，在本公开中不对触控结构10的结构进行限定，只要能实现触控功能即可，图1中的触控结构10仅为示意。
第二，本文中所述的中心区01即为当该触控面板03应用在显示装置时，用于画面显示的区域，周边区02位于中心区01的外围。
第三，第一涂覆保护层30至少覆盖遮光层20指的是：遮光层20在衬底100上的投影完全落在第一涂覆保护层30在衬底100上的投影内。
第四，衬底100例如可以为透明衬底。
在根据本公开实施例的触控面板03中，通过在周边区02设置位于遮光层20和触控结构10之间的第一涂覆保护层30，且使第一涂覆保护层30覆盖遮光层20，使遮光层20和触控结构10隔离；其中，由于第一涂覆保护层30中不含导电元素，因而可有效提高周边区02的抗ESD能力，从而可提高产品良率。
例如，如图4所示，第一涂覆保护层30还包括位于中心区01的部分，且第一涂覆保护层30位于中心区01内的边缘与中心区01与之邻近的边缘的距离H小于50μm。
例如，所述距离H可以为10-50μm，其中，该长度例如可以为20μm、30μm、40μm、50μm等。
由于周边区02的第一涂覆保护层30和遮光层20的整体厚度较厚、周边区02和中心区01之间存在较高段差，通过将第一涂覆保护层延伸至中心区01，可使第一涂覆保护层30和遮光层20产生的段差进行平滑过渡，降低后续工艺的难度。
在此基础上，将距离H设定为50μm以下，可以尽量少的使第一涂覆保护层30覆盖到触控结构10上，以避免对触控性能产生影响。
如图4和图5所示，触控结构10包括交叉且相互绝缘的第一触控电极101和第二触控电极102，第一触控电极101或第二触控电极102在交叉区域通过连接导线103电连接。
需要说明的是，第一触控电极101和第二触控电极102可同层设置，也可以异层设置。当第一触控电极101和第二触控电极102同层设置时，第一触控电极101或第二触控电极102在交叉区域通过连接导线103连接。
图4和图5以第一触控电极101在交叉区域通过连接导线103电连接为例进行示意。
进一步地，如图4和图5所示，连接导线103设置在第二触控电极102与衬底100之间；连接导线103与第二触控电极102通过绝缘块104隔离。其中，绝缘块104与第一涂覆保护层30同层设置。
基于此，第一触控电极101和第二触控电极102均由透明导电材料制成，例如ITO(氧化铟锡)、IZO(铟锌氧化物)等。
需要说明的是，绝缘块104与第一涂覆保护层30同层设置即为：通过同一次构图工艺形成绝缘块104与第一涂覆保护层30。
通过同一次构图工艺形成绝缘块104和第一涂覆保护层30，可以减少构图工艺次数，且可以提高开口率。
进一步地，在形成第一触控电极101和第二触控电极102后，可形成与第一触控电极101和第二触控电极102分别电连接的金属走线，所述金属走线用于与IC(Integrated Circuit，集成电路)相连。
进一步地，所述触控面板03还可以包括设置在金属走线远离衬底100一侧的第二涂覆保护层(图中未标识出)。即：在形成金属走线后，在周边区02形成第二涂覆保护层，第二涂覆保护层覆盖所述金属走线。
通过设置第二涂覆保护层，可起到保护金属走线的作用。
在本公开的一个实施例中，如图4和图6所示，连接导线103设置在第二触控电极102远离衬底100一侧；连接导线103与第二触控电极102通过绝缘块104隔离。其中，所述触控面板03还包括设置在周边区02的金属走线105；所述连接导线103的材料为金属材料，且连接导线103与金属走线105同层设置。在实施时，可以通过同一次构图工艺形成连接导线103与金属走线105。通过同一次构图工艺形成连接导线103与金属走线105，可以减 少构图工艺次数。
进一步地，如图7所示，所述触控面板03还包括设置在金属走线远离衬底100一侧的第二涂覆保护层50。即：在形成金属走线105后，在周边区02形成第二涂覆保护层50，第二涂覆保护层覆盖所述金属走线105。
通过设置第二涂覆保护层，可起到保护金属走线105的作用。
在本公开的一个实施例中，如图8所示，所述触控面板03还包括第三涂覆保护层40，第三涂覆保护层40设置在中心区01和周边区02，并位于遮光层20远离衬底100一侧且与遮光层20接触。通过设置第三涂覆保护层40，可提升衬底100的强度。
考虑到电子设备的边框一般采用白色边框或黑色边框，遮光层20为白色遮光层或黑色遮光层。
本公开的至少一个实施还提供了一种显示装置，包括上述的触控面板03。
所述显示装置可以为显示器、电视、手机、平板电脑等具有任何显示、触控功能的产品或者部件。
在根据本公开实施例的显示装置中，通过在触控面板03的周边区02设置位于遮光层20和触控结构10之间的第一涂覆保护层30，且使第一涂覆保护层30覆盖遮光层20，可将遮光层20和触控结构10隔离；其中，由于第一涂覆保护层30中不含导电元素，因而可有效提高周边区02的抗ESD能力，从而可提高产品良率。
在本公开的一个实施例中，如图9所示，显示装置还包括显示面板04，触控面板03设置在显示面板04的出光侧。
其中，显示面板04和触控面板03可通过光学透明胶(Optical Clear Resin，OCR)05连接。
当显示面板04为液晶显示面板时，其包括阵列基板、对置基板以及设置在二者之间的液晶层。其中，阵列基板可以包括薄膜晶体管(Thin Film Transistor，TFT)，与TFT的漏极电连接的像素电极；进一步的还可以包括公共电极。对置基板可以包括黑矩阵和彩膜。此处，彩膜可以设置在对置基板上，也可设置在阵列基板上；公共电极可以设置在阵列基板上，也可设置在对置基板上。
当显示面板04为OLED(Organic Light Emitting Diode，有机电致发光二极管)显示面板时，其包括阵列基板和封装基板。其中，阵列基板可以包括TFT，与TFT的漏极电连接的阳极、阴极、以及位于阳极和阴极之间的有机材料功能层。
以上所述仅是本公开的示范性实施方式，而非用于限制本公开的保护范围，本公开的保护范围由所附的权利要求确定。
本申请要求于2016年8月2日递交的中国专利申请No.201620828718.4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。

Claims (11)

  1. 一种触控面板，包括衬底以及设置在衬底上的触控结构；所述触控结构设置在所述衬底的中心区以及周边区的靠近所述中心区的部分；其还包括设置在所述周边区的遮光层以及至少覆盖所述遮光层的第一涂覆保护层；
    其中，所述第一涂覆保护层设置在所述遮光层和所述触控结构之间。
  2. 根据权利要求1所述的触控面板，其中，所述第一涂覆保护层还包括位于所述中心区的部分，且所述第一涂覆保护层位于所述中心区内的边缘与临近的所述中心区的边缘的距离小于50μm。
  3. 根据权利要求1至2中任何一项所述的触控面板，其中，所述触控结构包括交叉且相互绝缘的第一触控电极和第二触控电极，所述第一触控电极在交叉区域通过连接导线电连接。
  4. 根据权利要求3所述的触控面板，其中，所述连接导线设置在所述第二触控电极与所述衬底之间；所述连接导线与所述第二触控电极通过绝缘块隔离，所述绝缘块与所述第一涂覆保护层同层设置。
  5. 根据权利要求3所述的触控面板，其中，所述连接导线设置在所述第二触控电极远离所述衬底一侧；所述连接导线与所述第二触控电极通过绝缘块隔离；所述触控面板还包括设置在所述周边区的金属走线；
    其中，所述连接导线由金属材料制成，且所述连接导线与所述金属走线同层设置。
  6. 根据权利要求5所述的触控面板，其还包括第二涂覆保护层，所述第二涂覆保护层设置在所述金属走线远离所述衬底一侧并覆盖所述金属走线。
  7. 根据权利要求1-6任一项所述的触控面板，其还包括第三涂覆保护层，所述第三涂覆保护层设置在所述中心区和所述周边区，并位于所述遮光层远离所述衬底一侧且与所述遮光层接触。
  8. 根据权利要求1-6任一项所述的触控面板，其中，所述遮光层为白色遮光层或黑色遮光层。
  9. 根据权利要求1至8中任何一项所述的触控面板，其中，所述遮光层含有导电元素。
  10. 一种显示装置，其包括权利要求1至9中任何一项所述的触控面板。
  11. 根据权利要求10所述的显示装置，其包括显示面板；所述显示面板为液晶显示面板或有机电致发光二极管OLED显示面板。
PCT/CN2017/092682 2016-08-02 2017-07-13 触控面板及显示装置 WO2018024085A1 (zh)

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CN109032408A (zh) * 2018-07-25 2018-12-18 京东方科技集团股份有限公司 一种触摸屏、显示装置及触摸屏的制备方法
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