WO2018036283A1 - 触摸屏、显示面板及显示装置 - Google Patents

触摸屏、显示面板及显示装置 Download PDF

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WO2018036283A1
WO2018036283A1 PCT/CN2017/091827 CN2017091827W WO2018036283A1 WO 2018036283 A1 WO2018036283 A1 WO 2018036283A1 CN 2017091827 W CN2017091827 W CN 2017091827W WO 2018036283 A1 WO2018036283 A1 WO 2018036283A1
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shielding layer
light shielding
layer
touch screen
touch
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PCT/CN2017/091827
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English (en)
French (fr)
Inventor
朱雨
张明
胡明
谢晓冬
田�健
田新斌
许世峰
郑启涛
刘纯建
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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Priority to US15/745,006 priority Critical patent/US20190012025A1/en
Publication of WO2018036283A1 publication Critical patent/WO2018036283A1/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
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
    • 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
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/0005—Production of optical devices or components in so far as characterised by the lithographic processes or materials used therefor
    • G03F7/0007—Filters, e.g. additive colour filters; Components for display 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
    • 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

Definitions

  • Embodiments of the present disclosure relate to a touch screen, a display panel, and a display device.
  • ESD electrostatic discharge
  • electrostatic discharge refers to electrostatic charge transfer of an object having a different electrostatic potential due to direct contact or electrostatic induction. After the energy of the electrostatic field reaches a certain level, the electrostatic discharge can break through the medium and discharge it. Because of the instantaneous and high voltage characteristics of electrostatic discharge, it is easy to break down the insulation layer of electronic products, which is a problem that needs to be considered when designing a touch screen. It is also a part of the product that has a serious impact on product yield. Therefore, the product is enhanced. Anti-ESD capabilities will significantly increase product yield and reduce costs.
  • At least one embodiment of the present disclosure provides a touch screen including a substrate substrate, further including a first light shielding layer, a touch layer, and a second light shielding layer, wherein:
  • the first light shielding layer is a black light shielding layer disposed on an edge of the base substrate
  • the touch layer is disposed on the base substrate, and the touch layer is in contact with the inner edge of the first light shielding layer and does not overlap each other;
  • the second light shielding layer is disposed on the touch layer, and the second light shielding layer is in contact with an inner edge of the first light shielding layer.
  • the second light shielding layer is disposed on the touch layer.
  • the second light shielding layer is in contact with the inner edge of the first light shielding layer, so that the first light shielding layer is not under the edge pattern of the touch layer, thereby avoiding the formation of an electrostatic channel due to the breakdown of the first light shielding layer during the electrostatic test. To avoid electrostatic discharge.
  • the touch screen can eliminate the formation of an electrostatic channel during the electrostatic test by removing the first light shielding layer at the edge of the touch layer and the overlap region of the pattern, thereby avoiding electrostatic discharge.
  • the second light shielding layer is made of a light shielding material.
  • the second light shielding layer is made of black ink.
  • the second light shielding layer is in contact with the inner edge of the first light shielding layer and does not overlap each other.
  • the second light shielding layer overlaps an inner edge of the first light shielding layer.
  • the second light shielding layer has a width in a range of 0.5 mm to 1.5 mm.
  • the second light shielding layer has a width of 1 mm.
  • At least one embodiment of the present disclosure provides a display panel including the touch screen described above.
  • At least one embodiment of the present disclosure provides a display device including the above display panel.
  • FIG. 1 is a schematic structural diagram of a touch screen according to an embodiment of the present disclosure
  • FIG. 2 is a schematic structural diagram of a touch screen according to another embodiment of the present disclosure.
  • a touch screen includes a base substrate 4, and further includes a first light shielding layer 1, a touch layer 3, and a second light shielding layer 2, wherein:
  • the first light shielding layer 1 is disposed on an edge of the base substrate 4;
  • the touch layer 3 is disposed on the base substrate 4, and the touch layer 3 is in contact with the inner edge of the first light shielding layer 1 and does not overlap each other;
  • the second light shielding layer 2 is disposed on the touch layer 3, and the second light shielding layer 2 is in contact with the inner edge of the first light shielding layer 1.
  • the second light shielding layer 2 is in contact with the inner edge of the first light-shielding layer 1 to ensure that the first light-shielding layer 1 is not under the edge pattern of the touch layer 3, thereby avoiding the static electricity test. Since the first light shielding layer 1 is broken down to form an electrostatic passage, the problem of electrostatic discharge is solved.
  • the touch screen does not form an electrostatic channel during the electrostatic test by removing the first light shielding layer 2 at the edge of the touch layer 3 and the pattern overlapping region, and does not generate electrostatic discharge.
  • the first light shielding layer is a black light shielding layer.
  • the material of the second light shielding layer 2 is a light shielding material.
  • the material of the second light shielding layer 2 is a black ink.
  • the first light shielding layer 1 is externally expanded, and after the yellow light process, there is a blank area between the visible areas formed by the first light shielding layer 1 and the touch layer 3, and the black ink is used later.
  • the patch fills the area, and there is no first light-shielding layer 1 below the visible area edge pattern.
  • the material of the second light shielding layer 2 is a light shielding material for shielding. According to the actual size of the touch screen and the optical performance, the second light shielding layer 2 may be a black ink or other materials that satisfy the optical properties of the second light shielding layer 2.
  • the second light shielding layer 2 is in contact with the inner edge of the first light shielding layer 1 and does not overlap each other.
  • the second light shielding layer 2 is in contact with the inner edge of the first light shielding layer 1, and the second light shielding layer 2 and the inner edge of the first light shielding layer 1 may be in contact with each other and do not overlap each other.
  • the second light shielding layer 2 may also be in contact with the inner edge of the first light shielding layer 1 and a portion of the second light shielding layer 2 and the first light shielding layer 1 do not overlap each other, and the other portion of the second light shielding layer 2 is located on the first light shielding layer 1 Above.
  • the width of the second light shielding layer 2 ranges from 0.5 mm to 1.5 mm.
  • the width of the second light shielding layer 2 may be 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm.
  • the second light shielding layer 2 has a width of 1 mm.
  • the width of the appropriate second light shielding layer 2 is selected according to the external dimensions of the touch screen and other specific actual conditions.
  • At least one embodiment of the present disclosure provides a display panel including the touch screen described above.
  • the touch panel avoids the formation of an electrostatic channel due to the breakdown of the first light shielding layer 1 during the static electricity test, electrostatic discharge is avoided, and therefore, there is no electrostatic discharge in the display panel having the above touch screen.
  • At least one embodiment of the present disclosure provides a display device including the above display panel.
  • electrostatic discharge does not exist in the above display panel, electrostatic discharge does not exist in the display device having the above display panel.

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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)
  • Laminated Bodies (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Elimination Of Static Electricity (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Position Input By Displaying (AREA)

Abstract

一种触摸屏，包括衬底基板（4），其还包括第一遮光层（1）、触控层（3）以及第二遮光层（2），其中：第一遮光层（1）为黑色遮光层，并设置在衬底基板（4）的边缘；触控层（3）设置在衬底基板（4）上，且触控层（3）与第一遮光层（1）的内边缘相接触且互不重叠；以及第二遮光层（2）设置在触控层（3）上，且第二遮光层（2）与第一遮光层（1）的内边缘相接触。

Description

触摸屏、显示面板及显示装置 技术领域
本公开的实施例涉及一种触摸屏、显示面板及显示装置。
背景技术
ESD(静电放电)是指具有不同静电电位的物体由于直接接触或静电感应引起的静电电荷转移。在静电场的能量达到一定程度后，静电放电可以击穿其间介质而进行放电。因静电放电具有瞬时、高电压等特性，极易将电子产品绝缘层击穿致使产品失效，是设计触摸屏时需要考虑的问题，也是对产品良率影响较为严重的一个环节，因此，增强产品的抗ESD能力，将能够显著提升产品良率，降低成本。
通过对众多触摸屏ESD高发产品分析发现，触摸屏的可视区(Visual Area，VA)边缘的黑色遮光层(Black Matrix，BM)与图样(Pattern)搭接区域的ESD现象较为严重，触摸屏VA边缘与Pattern搭接区域的BM层被静电击穿，BM材料中形成导电通道，致使触摸屏的模数转换(Analog-Digital Conversion)值单点偏高或发送接收(Rx/Tx)之间产生短路，引起静电失效，严重影响触摸屏性能，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摸屏，包括衬底基板，还包括第一遮光层、触控层以及第二遮光层，其中:
所述第一遮光层为黑色遮光层，设置在所述衬底基板的边缘；
所述触控层设置在所述衬底基板上，且所述触控层与所述第一遮光层的内边缘相接触且互不重叠；以及
所述第二遮光层设置在所述触控层上，且所述第二遮光层与所述第一遮光层的内边缘相接触。
在上述触摸屏中，由于触控层与第一遮光层设置在衬底基板上，且触控层和第一遮光层的内边缘相接触且互不重叠，第二遮光层设置在触控层上， 且第二遮光层和第一遮光层的内边缘相接触，保证了触控层的边缘图样下方没有第一遮光层，进而避免了在静电测试时由于第一遮光层被击穿而形成静电通道，避免了静电放电。
因此，上述触摸屏通过去除触控层边缘与图样搭接区的第一遮光层，使其在静电测试时无法形成静电通道，避免了静电放电。
在本公开的一个实施例中，所述第二遮光层由遮光材料制成。
在本公开的一个实施例中，所述第二遮光层由黑色油墨制成。
在本公开的一个实施例中，所述第二遮光层与所述第一遮光层的内边缘相接触且互不重叠。
在本公开的一个实施例中，所述第二遮光层与所述第一遮光层的内边缘重叠。
在本公开的一个实施例中，所述第二遮光层宽度在0.5mm-1.5mm的范围内。
在本公开的一个实施例中，所述第二遮光层宽度为1mm。
本公开的至少一个实施例提供了一种显示面板，包括上述的触摸屏。
本公开的至少一个实施例提供了一种显示装置，包括上述的显示面板。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对实施例的附图作简单地介绍，显而易见地，下面描述中的附图仅仅涉及本公开的一些实施例，而非对本公开的限制。
图1为根据本公开的一个实施例的触摸屏的结构示意图；以及
图2为根据本公开的另一个实施例的触摸屏的结构示意图。
具体实施方式
为使本公开实施例的目的、技术方案和优点更加清楚，下面将结合本公开实施例的附图，对本公开实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。基于所描述的本公开的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本公开保护的范围。
如图1以及图2所示，一种触摸屏，包括衬底基板4，还包括第一遮光层1、触控层3以及第二遮光层2，其中:
第一遮光层1设置在衬底基板4的边缘；
触控层3设置在衬底基板4上，且触控层3与第一遮光层1的内边缘相接触且互不重叠；
第二遮光层2设置在触控层3上，且第二遮光层2与第一遮光层1的内边缘相接触。
在上述触摸屏中，由于触控层3与第一遮光层1设置在衬底基板4上，且触控层3和第一遮光层1的内边缘相接触且互不重叠，第二遮光层2设置在触控层3上，且第二遮光层2和第一遮光层1的内边缘相接触，保证了触控层3的边缘图样下方没有第一遮光层1，进而避免了在静电测试时由于第一遮光层1被击穿而形成静电通道，进而解决了静电放电的问题。
因此，上述触摸屏通过去除在触控层3的边缘与图样搭接区的第一遮光层2，使其在静电测试时无法形成静电通道，不会产生静电放电。
在本公开的一个实施例中，第一遮光层为黑色遮光层。
在本公开的一个实施例中，第二遮光层2的材料为遮光材料。
在本公开的一个实施例中，第二遮光层2的材料为黑色油墨。
在触摸屏掩膜设计时，预先将第一遮光层1外扩，通过黄光制程后在第一遮光层1和触控层3形成的可视区之间有一个留白区域，后期利用黑色油墨补印方式填充该区域，在可视区边缘图样下方无第一遮光层1。
第二遮光层2的材料为遮光材料用于遮光，根据触摸屏外形尺寸及光学性能的实际情况，第二遮光层2可以为黑色油墨，也可以为满足第二遮光层2光学性能的其它材料。
在本公开的一个实施例中，第二遮光层2与第一遮光层1的内边缘相接触且互不重叠。
为了保证衬底基板4上图案的连续，第二遮光层2与第一遮光层1的内边缘相接触，第二遮光层2与第一遮光层1的内边缘可以相接触且互不重叠，第二遮光层2与第一遮光层1的内边缘也可以相接触且有一部分第二遮光层2与第一遮光层1互不重叠，另一部分第二遮光层2位于第一遮光层1的上方。
在本公开的一个实施例中，第二遮光层2宽度的范围为0.5mm-1.5mm。
第二遮光层2宽度的可以为0.5mm、0.6mm、0.7mm、0.8mm、0.9mm、1mm、1.1mm、1.2mm、1.3mm、1.4mm、1.5mm。
例如，第二遮光层2宽度为1mm。根据触摸屏的外形尺寸以及其它具体实际情况选择合适的第二遮光层2的宽度。
本公开的至少一个实施例提供了一种显示面板，包括上述的触摸屏。
由于上述触摸屏避免了在静电测试时由于第一遮光层1被击穿而形成静电通道，避免了静电放电，因此，具有上述触摸屏的显示面板中不存在静电放电。
本公开的至少一个实施例提供了一种显示装置，包括上述显示面板。
由于上述显示面板中不存在静电放电，因此，具有上述显示面板的显示装置中不存在静电放电。
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08月25日递交的中国专利申请No.201620945343.X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 (9)

  1. 一种触摸屏，包括衬底基板，其还包括第一遮光层、触控层以及第二遮光层，其中:
    所述第一遮光层为黑色遮光层，并设置在所述衬底基板的边缘；
    所述触控层设置在所述衬底基板上，且所述触控层与所述第一遮光层的内边缘相接触且互不重叠；以及
    所述第二遮光层设置在所述触控层上，且所述第二遮光层与所述第一遮光层的内边缘相接触。
  2. 根据权利要求1所述的触摸屏，其中，所述第二遮光层由遮光材料制成。
  3. 根据权利要求2所述的触摸屏，其中，所述第二遮光层由黑色油墨制成。
  4. 根据权利要求1至3中任何一项所述的触摸屏，其中，所述第二遮光层与所述第一遮光层的内边缘相接触且互不重叠。
  5. 根据权利要求1至3中任何一项所述的触摸屏，其中，所述第二遮光层与所述第一遮光层的内边缘重叠。
  6. 根据权利要求1至5中任何一项所述的触摸屏，其中，所述第二遮光层宽度在0.5mm-1.5mm的范围内。
  7. 根据权利要求1至5中任何一项所述的触摸屏，其中，所述第二遮光层的宽度为1mm。
  8. 一种显示面板，其包括如权利要求1至7中任何一项所述的触摸屏。
  9. 一种显示装置，其包括如权利要求8所述的显示面板。
PCT/CN2017/091827 2016-08-25 2017-07-05 触摸屏、显示面板及显示装置 WO2018036283A1 (zh)

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US15/745,006 US20190012025A1 (en) 2016-08-25 2017-07-05 Touch Screen, Display Panel, and Display Device

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CN201620945343.XU CN206133508U (zh) 2016-08-25 2016-08-25 一种触摸屏、显示面板及显示装置
CN201620945343.X 2016-08-25

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