WO2016155168A1 - 触控面板的制作方法、触控面板及触控显示装置 - Google Patents

触控面板的制作方法、触控面板及触控显示装置 Download PDF

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WO2016155168A1
WO2016155168A1 PCT/CN2015/085317 CN2015085317W WO2016155168A1 WO 2016155168 A1 WO2016155168 A1 WO 2016155168A1 CN 2015085317 W CN2015085317 W CN 2015085317W WO 2016155168 A1 WO2016155168 A1 WO 2016155168A1
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Prior art keywords
black matrix
photoresist
touch
material layer
manufacturing
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English (en)
French (fr)
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陈鹏
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BOE Technology Group Co Ltd
Hefei Xinsheng Optoelectronics Technology Co Ltd
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BOE Technology Group Co Ltd
Hefei Xinsheng Optoelectronics Technology Co Ltd
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Priority to US14/908,086 priority Critical patent/US10228802B2/en
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    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/20Exposure; Apparatus therefor
    • G03F7/2002Exposure; Apparatus therefor with visible light or UV light, through an original having an opaque pattern on a transparent support, e.g. film printing, projection printing; by reflection of visible or UV light from an original such as a printed image
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0443Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04111Cross 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 relates to the field of touch screens, and more particularly to a method for manufacturing a touch panel, a touch panel, and a touch display device.
  • the current touch panel can be divided into a G-G structure and an One Glass Solution (OGS) structure.
  • the GG structure is formed by using a touch sensor on a common glass and then being bonded to the protective glass.
  • the advantage is that the manufacturing process is simple, and the array substrate (Array) production line has good compatibility; the disadvantage is that the structure It is a double-glazed laminate, and the resulting GG product has a large thickness and a low transmittance.
  • the OGS structure is a black matrix that directly blocks light, a protective organic resin, and a touch electrode. Compared with the GG structure, the OGS structure has the advantage of using only one glass, so the structure is simple and the transmittance is high. Moreover, a glass substrate and a bonding process are omitted in the manufacturing process, which is advantageous for reducing production cost and improving product yield.
  • OGS will become the leading technology direction of the touch industry.
  • the manufacturing process still includes multiple patterning processes, and each patterning process is not only time-consuming but also extremely expensive. Therefore, reducing the number of patterning processes of the existing OGS touch panel manufacturing method has become a technical problem that needs to be solved at present.
  • the technical problem to be solved by the present disclosure is to provide a touch panel manufacturing method, a touch panel, and a touch touch display device, which can reduce manufacturing time and thereby reduce manufacturing costs.
  • an embodiment of the present disclosure provides a method for fabricating a touch panel, including the steps of forming a connection line, a black matrix, an isolation film, a plurality of first touch electrodes, and a plurality of second touch electrodes;
  • the first touch electrode includes a plurality of first sub-electrodes that are separated from each other, and the adjacent first sub-electrodes are bridged by the connecting line, and the second touch sub-electrode passes through the isolation film and the Connection Line insulation
  • the black matrix and the separator are formed by one patterning process.
  • the above manufacturing method comprises the following steps:
  • a connection line is formed on the base substrate on which the black matrix and the separator are formed by one patterning process.
  • connection line Forming a connection line on the base substrate by one patterning process
  • the first touch electrode and the second touch electrode are formed on the base substrate on which the black matrix and the isolation film are formed by one patterning process.
  • forming the black matrix and the isolation film by one patterning process comprises:
  • the glue removal area corresponds to other areas
  • the remaining photoresist is removed.
  • forming the black matrix and the isolation film by one patterning process includes:
  • Forming the black matrix and the isolation film by one patterning process includes:
  • the photoresist is exposed and developed by using a half exposure mask to form a photoresist full retention region, a photoresist semi-retention region, and a photoresist removal region, wherein the photoresist full retention region corresponds to the black matrix pattern.
  • Area a region, the photoresist semi-reserved area corresponds to an isolation film pattern area, and the photoresist removal area corresponds to other areas;
  • the remaining photoresist is removed.
  • another embodiment of the present disclosure further provides a touch panel obtained by the above manufacturing method.
  • the black matrix of the touch panel and the isolation film are disposed in the same layer and the same material.
  • another embodiment of the present disclosure further provides a touch display device including the above touch panel.
  • the black matrix and the isolation film of the touch panel of the present disclosure are formed by one patterning process, which can reduce the manufacturing time and thus the manufacturing cost.
  • FIGS. 1A-1D are schematic diagrams of a touch panel in which a first touch electrode and a second touch electrode are formed by a first patterning process in a manufacturing method according to a first implementation manner of the present disclosure
  • 2A-2D are schematic diagrams of a touch panel for forming a black matrix and a spacer film by a second patterning process in the manufacturing method of the first implementation manner of the present disclosure
  • 3A-3D are schematic diagrams of a touch panel in which a connection line is formed by a third patterning process in a manufacturing method of a first implementation manner of the present disclosure
  • FIGS. 4A-4C are schematic diagrams of a touch panel in which a connection line is formed by a first patterning process in a manufacturing method of a second implementation manner of the present disclosure
  • 5A-5D are schematic diagrams of a touch panel for forming a black matrix and an isolation film by a second patterning process in a manufacturing method of a second implementation manner of the present disclosure
  • 6A-6C are schematic diagrams of a touch panel for forming a first touch electrode and a second touch electrode by a third patterning process in a manufacturing method according to a second implementation of the present disclosure
  • FIG. 7 is a schematic structural view of a touch substrate manufactured by the manufacturing method of the present disclosure.
  • the present disclosure provides a method for fabricating a touch panel, including the steps of forming a connection line, a black matrix, an isolation film, a plurality of first touch electrodes, and a plurality of second touch electrodes;
  • the first touch electrode includes a plurality of first sub-electrodes that are separated from each other, and the adjacent first sub-electrodes are bridged by the connecting lines, and the second touch sub-electrode is insulated from the connecting line by the isolation film;
  • the black matrix and the separator are formed by one patterning process.
  • the manufacturing method of the embodiment can save a patterning process, thereby reducing manufacturing time and materials, thereby reducing manufacturing costs.
  • the production method only requires three patterning processes, including:
  • the transparent conductive layer 3 is deposited (for example, using an ITO material) );
  • a photoresist 6 is coated on the transparent conductive layer 3, and the photoresist is coated with a mask. 6 performing exposure and development to form a photoresist 6 full retention region and a photoresist 6 removal region, wherein the photoresist 6 full retention region a corresponds to the first sub-electrode and the second sub-electrode pattern region directly connected to each other.
  • the photoresist 6 removal region b corresponds to other regions;
  • the transparent conductive layer of the photoresist 6 removal region b is etched, and the remaining photoresist 6 is removed to form a first sub-electrode 31 and a second sub-electrode 32;
  • 1D is a top view of the substrate substrate corresponding to FIG. 1C, the first touch electrode is composed of a first sub-electrode 31 that is separated from each other, and the second touch electrode is composed of a second sub-electrode 32 that communicates with each other;
  • an insulating black matrix material layer 4 is formed on the base substrate 2 on which the first touch electrode and the second touch electrode are formed;
  • a photoresist 6 is coated on the black matrix material layer, and the photoresist 6 is exposed and developed by using a mask to form a photoresist 6 full retention area a and a photoresist 6 removal area b.
  • the photoresist 6 full retention area a corresponds to the black matrix and the isolation film pattern area
  • the photoresist 6 removal area b corresponds to other areas;
  • the black matrix material layer of the photoresist 6 removal region b is etched, and the remaining photoresist 6 is removed to form a pattern of the black matrix 41 and the isolation film 42;
  • FIG. 2D is a top view of the substrate substrate corresponding to FIG. 2C, in which the black matrix 41 is located in the non-display area, and the isolation film 42 covers the portions where the second sub-electrodes are connected to each other.
  • a conductive layer 5 is deposited on the substrate substrate on which the black matrix and the isolation film are formed; wherein the material of the conductive layer 5 may be a metal, and the connection line formed thereafter corresponds to a metal line;
  • conductive The photoresist 6 is coated on the layer 5, and the photoresist 6 is exposed and developed by using a mask to form a photoresist 6 full retention region and a photoresist 6 removal region, wherein the photoresist 6 is completely retained.
  • the area a is in the connection pattern area, and the photoresist 6 removal area b corresponds to other areas;
  • the conductive layer of the photoresist 6 removal region b is etched, and the remaining photoresist 6 is removed to form a connection line 51 bridging the first sub-electrode.
  • 3D is a top view of the substrate substrate corresponding to FIG. 3C , and the connection line 51 and the second touch electrode are separated by an isolation film, so that the first touch electrode and the second touch electrode are insulated from each other.
  • the above is the entire composition process for making a touch panel.
  • the black matrix and the partition The film is made of the same material, so the material used can be reduced.
  • this implementation method first proposes a method for fabricating three patterning processes, which can greatly improve the production efficiency of the touch panel, thereby reducing the manufacturing cost.
  • the conductive layer 5 is deposited, and the conductive layer 5 is The material layer used in the first embodiment for making the connecting line;
  • a photoresist 6 is coated on the transparent conductive layer 5, and the photoresist 6 is exposed and developed by using a mask to form a photoresist 6 full retention region and a photoresist 6 removal region. a photoresist 6 full-retention area a to the connection line pattern area, the photoresist 6 removal area b corresponding to other areas;
  • the transparent conductive layer of the photoresist 6 removal region b is etched, and the remaining photoresist 6 is removed to form a connection line 51.
  • a transparent insulating material layer 4' and a black matrix material layer 4 are sequentially formed;
  • a photoresist 6 is coated on the black matrix material layer to form a photoresist 6 full retention region x, a photoresist 6 semi-reserved region y, and a photoresist 6 removal region z, wherein the photoresist 6
  • the full retention area x corresponds to the black matrix pattern area
  • the photoresist 6 semi-reserved area y corresponds to the isolation film pattern area
  • the photoresist 6 removal area z corresponds to other areas;
  • the black matrix material layer and the transparent insulating material layer of the photoresist 6 removal region z are etched;
  • the photoresist 6 of the semi-reserved area y of the photoresist 6 is ashed, and then the black matrix material layer of the semi-reserved area y is etched, and all remaining photoresists 6 are removed to form a black matrix. 41 and separator 42.
  • a transparent conductive layer 3 is deposited on a substrate on which a black matrix and a spacer are formed; wherein the transparent conductive layer may be a material such as ITO, IZO, or the like;
  • a photoresist 6 is coated on the conductive layer 3, and the photoresist 6 is exposed and developed by using a mask to form a photoresist 6 full retention region and a photoresist 6 removal region.
  • the photoresist 6 has a full retention area a to the connection line pattern area, and the photoresist 6 removal area b corresponds to other areas;
  • the transparent conductive layer of the photoresist 6 removal region b is etched, and the remaining photoresist 6 is removed to form a first touch electrode composed of the first sub-electrode 31 and directly connected to each other.
  • FIG. 7 Each of the first sub-electrodes 31 of the first touch electrode is bridged by a connection line 51.
  • the second touch electrode (consisting of the second sub-electrode 32) is insulated from the first touch electrode by the isolation film 42.
  • a black matrix 41 is formed near the edge of the touch panel, that is, the non-display area.
  • the isolation film is made of a transparent material, so that it has higher transmittance on the display area than the first embodiment.
  • the manufacturing method of the present disclosure only needs three patterning processes to fabricate the touch panel, thereby effectively reducing the production time and further reducing the manufacturing cost.
  • the present disclosure also provides a touch panel manufactured by the above manufacturing method and a touch display including the touch panel.
  • the touch display can be a mobile phone, a PAD, a television, etc., and preferably adopts an OGS integrated touch structure, that is, the touch panel of the touch display forms the inside of the display panel of the touch display.
  • the black matrix of the touch panel and the isolation film can be disposed in the same layer and the same material.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Position Input By Displaying (AREA)

Abstract

一种触控面板的制作方法、触控面板及触控显示装置。制作方法包括形成连接线(51)、黑矩阵(41)、隔离膜(42)、多条第一触控电极以及多条第二触控电极的步骤;其中,所述第一触控电极包括多个相互隔断的第一子电极(31),相邻的第一子电极(31)之间通过所述连接线(51)桥接,所述第二触控电极通过所述隔离膜(42)与所述连接线(51)绝缘;所述黑矩阵(41)和所述隔离膜(42)通过一次构图工艺形成。

Description

触控面板的制作方法、触控面板及触控显示装置
相关申请的交叉引用
本申请主张在2015年3月31日在中国提交的中国专利申请号No.201510148165.8的优先权,其全部内容通过引用包含于此。
技术领域
本公开涉及触摸屏领域,特别是一种触控面板的制作方法、触控面板及触控显示装置。
背景技术
目前的触控面板可以分为G-G结构和一体化触控(One Glass Solution,OGS)结构。其中,G-G结构是将触控传感器(Touch sensor)制作在普通玻璃上,然后和保护玻璃进行贴合,其优点是制造工艺简单,和阵列基板(Array)产线兼容性好;缺点是该结构是双层玻璃贴合,最后得到的G-G产品厚度较大,而且透过率偏低。OGS结构是直接在玻璃上形成起挡光作用的黑矩阵、起保护作用的有机树脂以及触控电极,相比于G-G结构,其优点是仅使用一张玻璃,因此结构简单、透过率高,且制作工艺中省掉一张玻璃基板以及贴合工序,有利于降低生产成本、提高产品良率。
因此,OGS将成为触控产业的主导技术方向。但是目前,即便OGS触摸面板的制作成本低于G-G触控面板,其制作工序依然包括有多道构图工艺,每道构图工艺不仅耗时长还极为昂贵。为此,减少现有OGS触摸面板的制作方法的构图工艺次数,成为了当前亟需解决的技术问题。
发明内容
本公开要解决的技术问题是提供一种触控面板的制作方法、触控面板及触控触控显示装置,能够减少制造时间,进而降低制造成本。
为解决上述技术问题,本公开的实施例提供一种触控面板的制作方法,包括形成连接线、黑矩阵、隔离膜、多条第一触控电极以及多条第二触控电极的步骤;
所述第一触控电极包括多个相互隔断的第一子电极,相邻的第一子电极之间通过所述连接线桥接,所述第二触控子电极通过所述隔离膜与所述连接 线绝缘;
所述黑矩阵和所述隔离膜通过一次构图工艺形成。
其中,上述制造方法包括下步骤:
通过一次构图工艺,在衬底基板上,形成第一触控电极和第二触控电极;
通过一次构图工艺,在形成有第一触控电极和第二触控电极的衬底基板上,形成黑矩阵和隔离膜;
通过一次构图工艺,在形成有黑矩阵和隔离膜的衬底基板上,形成连接线。
或者,包括下步骤:
通过一次构图工艺,在衬底基板上,形成连接线;
通过一次构图工艺,在形成有连接线的衬底基板上,形成黑矩阵和隔离膜;
通过一次构图工艺,在形成有黑矩阵和隔离膜的衬底基板上,形成第一触控电极和第二触控电极。
其中,通过一次构图工艺形成黑矩阵和隔离膜包括:
形成具有绝缘性的黑矩阵材料层;
在黑矩阵材料层上涂布光刻胶;
利用掩膜板对所述光刻胶进行曝光、显影,形成光刻胶全保留区和光刻胶去除区,其中,光刻胶全保留区对应黑矩阵和隔离膜图形区域,所述光刻胶去除区对应其他区域;
对所述光刻胶去除区的黑矩阵材料层进行刻蚀,形成由黑矩阵材料构成的黑矩阵以及隔离膜的图形;
去除剩余的光刻胶。
或者,通过一次构图工艺形成黑矩阵和隔离膜包括:
通过一次构图工艺形成黑矩阵和隔离膜包括:
依次形成透明绝缘材料层和黑矩阵材料层;
在所述黑矩阵材料层上涂布光刻胶;
利用半曝光掩膜板对所述光刻胶进行曝光并显影,形成光刻胶全保留区、光刻胶半保留区和光刻胶去除区,其中,光刻胶全保留区对应黑矩阵图形区 域,所述光刻胶半保留区对应隔离膜图形区域,所述光刻胶去除区对应其他区域;
对所述光刻胶去除区的黑矩阵材料层和透明绝缘材料层进行刻蚀;
对所述光刻胶半保留区的光刻胶进行灰化;
对所述光刻胶半保留区的黑矩阵材料层进行刻蚀,形成只由透明绝缘材料层构成的隔离膜的图形和由透明绝缘材料层以及黑矩阵材料层构成的黑矩阵图形;
去除剩余的光刻胶。
此外,本公开的另一实施例还提供一种由上述制作方法得到的触控面板。
其中,所述触控面板额黑矩阵和隔离膜同层同材料设置。
此外,本公开的另一实施例还提供一种触控显示装置,包括上述触控面板。
本公开的上述技术方案的有益效果如下:
相比于现有技术,本公开触控面板的黑矩阵和隔离膜通过一道构图工艺形成,可减少了制造时间,进而降低制造成本。
附图说明
图1A-图1D为本公开的第一实现方式的制造方法中,通过第一次构图工艺形成第一触控电极和第二触控电极的触控面板示意图;
图2A-图2D为本公开的第一实现方式的制造方法中,通过第二次构图工艺形成黑矩阵以及隔离膜的触控面板示意图;
图3A-图3D为本公开的第一实现方式的制造方法中,通过第三次构图工艺形成连接线的触控面板示意图;
图4A-图4C为本公开的第二实现方式的制造方法中,通过第一次构图工艺形成连接线的触控面板示意图;
图5A-图5D为本公开的第二实现方式的制造方法中,通过第二次构图工艺形成黑矩阵以及隔离膜的触控面板示意图;
图6A-图6C为本公开的第二实现方式的制造方法中,通过第三次构图工艺形成第一触控电极和第二触控电极的触控面板示意图;
图7为通过本公开的制作方法,制造出的触控基板的结构示意图。
具体实施方式
为使本公开要解决的技术问题、技术方案和优点更加清楚,下面将结合附图及具体实施例进行详细描述。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所获得的所有其他实施例,都属于本公开保护的范围。
除非另作定义,此处使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开专利申请说明书以及权利要求书中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性,而只是用来区分不同的组成部分。同样,“一个”或者“一”等类似词语也不表示数量限制,而是表示存在至少一个。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接,而是可以包括电性的连接,不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系,当被描述对象的绝对位置改变后,则该相对位置关系也相应地改变。
针对现有技术存在的问题,本公开提供一种触控面板的制作方法,包括形成连接线、黑矩阵、隔离膜、多条第一触控电极以及多条第二触控电极的步骤;
第一触控电极包括多个相互隔断的第一子电极,相邻的第一子电极之间通过所述连接线桥接,第二触控子电极通过所述隔离膜与所述连接线绝缘;
与现有技术不同的是,所述黑矩阵和所述隔离膜通过一次构图工艺形成。
相比于现有技术,本实施例的制作方法可节省了一道构图工艺,因此减少了制造时间以及用料,进而降低制造成本。
下面结合几个实现方式,对本公开的制作方法进行详细介绍。
实现方式一
在实现方式一中,制作方法仅需要3道构图工艺,包括:
第一次构图工艺:
参考图1A,在形成有消影层2的衬底基板1上(消影层是沉积在整个衬底基板上的,不需要构图工艺加工成图案),沉积透明导电层3(例如采用ITO材料);
参考图1B,在透明导电层3上涂布光刻胶6,利用掩膜板对所述光刻胶 6进行曝光并显影,形成光刻胶6全保留区和光刻胶6去除区,其中,光刻胶6全保留区a对应第一子电极和直接相互连接的第二子电极图形区域,所述光刻胶6去除区b对应其他区域;
参考图1C,对所述光刻胶6去除区b的透明导电层进行刻蚀,并去除剩余的光刻胶6,形成第一子电极31和第二子电极32;
其中,图1D为对应于图1C的衬底基板俯视图,第一触控电极由相互隔断的第一子电极31构成,而第二触控电极由相互连通的第二子电极32构成;
第二次构图工艺:
参考图2A,在形成有第一触控电极和第二触控电极的衬底基板2上,形成具有绝缘性的黑矩阵材料层4;
参考图2B,在黑矩阵材料层上涂布光刻胶6,利用掩膜板对该光刻胶6进行曝光并显影,形成光刻胶6全保留区a和光刻胶6去除区b,其中,光刻胶6全保留区a对应黑矩阵和隔离膜图形区域,所述光刻胶6去除区b对应其他区域;
参考图2C,对所述光刻胶6去除区b的黑矩阵材料层进行刻蚀,并去除剩余的光刻胶6形成黑矩阵41以及隔离膜42的图形;
其中,图2D为对应于图2C的衬底基板俯视图,图中黑矩阵41位于非显示区域,隔离膜42覆盖第二子电极之间相互连接的部位。
第三次构图工艺:
参考图3A,在形成有黑矩阵和隔离膜的衬底基板上,沉积导电层5;其中,导电层5的材料可以是金属,之后形成的连接线对应为金属线;参考图3B,在导电层5上涂布光刻胶6,利用掩膜板对所述光刻胶6进行曝光并显影,形成光刻胶6全保留区和光刻胶6去除区,其中,光刻胶6全保留区a对连接线图形区域,光刻胶6去除区b对应其他区域;
参考图3C,对所述光刻胶6去除区b的导电层进行刻蚀,并去除剩余的光刻胶6,形成桥接第一子电极的连接线51。
其中,图3D为对应于图3C的衬底基板俯视图,连接线51与第二触控电极之间通过隔离膜隔断,从而使第一触控电极与第二触控电极相互绝缘。
以上是制作触控面板的全部构图工艺。在本实现方式一中,黑矩阵与隔 离膜由同一材料制作而成,因此可以减少制作用料。此外,与现有技术不同是,本实现方式一首次提出3道构图工艺的制作方法,可极大提高触控面板的生产效率,进而减少制作成本。
实现方式二
在实现方式二中,提供另一种3构图工艺的制作方法,包括:
第一次构图工艺:
参考图4A,在形成有消影层2的衬底基板1上(消影层是沉积在整个衬底基板上的,不需要构图工艺加工成图案),沉积导电层5,该导电层5即实现方式一中用于制作连接线的材料层;
参考图4B,在透明导电层5上涂布光刻胶6,利用掩膜板对所述光刻胶6进行曝光并显影,形成光刻胶6全保留区和光刻胶6去除区,其中,光刻胶6全保留区a对连接线图形区域,所述光刻胶6去除区b对应其他区域;
参考图4C,对所述光刻胶6去除区b的透明导电层进行刻蚀,并去除剩余的光刻胶6,形成连接线51。
第二次构图工艺:
参考图5A,在形成有连接线的衬底基板2上,依次形成透明绝缘材料层4′和黑矩阵材料层4;
参考图5B,在黑矩阵材料层上涂布光刻胶6,形成光刻胶6全保留区x、光刻胶6半保留区y和光刻胶6去除区z,其中,光刻胶6全保留区x对应黑矩阵图形区域,所述光刻胶6半保留区y对应隔离膜图形区域,所述光刻胶6去除区z对应其他区域;
参考图5C,对光刻胶6去除区z的黑矩阵材料层和透明绝缘材料层进行刻蚀;
参考图5D,对光刻胶6半保留区y的光刻胶6进行灰化,之后对半保留区y的黑矩阵材料层进行刻蚀,并去所有剩余的光刻胶6,形成黑矩阵41和隔离膜42。
第三次构图工艺:
参考图6A,在形成有黑矩阵和隔离膜的衬底基板上,沉积透明导电层3;其中,透明导电层可以是如ITO、IZO等材料;
参考图6B,在导电层3上涂布光刻胶6,利用掩膜板对所述光刻胶6进行曝光并显影,形成光刻胶6全保留区和光刻胶6去除区,其中,光刻胶6全保留区a对连接线图形区域,光刻胶6去除区b对应其他区域;
参考图6C,对所述光刻胶6去除区b的透明导电层进行刻蚀,并去除剩余的光刻胶6,形成由第一子电极31组成的第一触控电极和直接相互连接的第二子电极32所形成的第二触控电极。
以上是制作触控面板的全部构图工艺,最终制作出阵列图形的触控面板如图7所示。第一触控电极的各第一子电极31通过连接线51桥接。第二触控电极(由第二子电极32构成的)通过隔离膜42,与第一触控电极绝缘。在触控面板的边缘附近,即非显示区域,形成黑矩阵41。
在本实现方式二中,隔离膜采用透明材料制成,因此相比于实现方式一,在显示区域上具有更高的透光率。
综上实现方式一和实现方式二所述,本公开的制作方法仅需要3道构图工艺即可制作出触控面板,因此可以有效减少制作时间,进而降低制作成本。
此外,本公开的还提供一种由上述制作方法制造出的触控面板以及包含该触控面板的触控显示器。触控显示器可以是手机、PAD、电视等产品,并优选采用OGS一体化触控结构,即触控显示器的触控面板形成触控显示器的显示面板内侧上。其中,如图3C所示,触控面板的黑矩阵与隔离膜可以同层同材料设置。
以上所述是本公开的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本公开所述原理的前提下,还可以作出若干改进和润饰,这些改进和润饰也应视为本公开的保护范围。

Claims (8)

  1. 一种触控面板的制作方法,包括形成连接线、黑矩阵、隔离膜、多条第一触控电极以及多条第二触控电极的步骤;
    所述第一触控电极包括多个相互隔断的第一子电极,相邻的第一子电极之间通过所述连接线桥接,所述第二触控子电极通过所述隔离膜与所述连接线绝缘;
    其中,所述方法还包括:
    所述黑矩阵和所述隔离膜通过一次构图工艺形成。
  2. 根据权利要求1所述的制造方法,其中,所述制造方法包括:
    通过一次构图工艺,在衬底基板上,形成第一触控电极和第二触控电极;
    通过一次构图工艺,在形成有第一触控电极和第二触控电极的衬底基板上,形成黑矩阵和隔离膜;
    通过一次构图工艺,在形成有黑矩阵和隔离膜的衬底基板上,形成连接线。
  3. 根据权利要求1所述的制造方法,其中,所述制造方法包括:
    通过一次构图工艺,在衬底基板上,形成连接线;
    通过一次构图工艺,在形成有连接线的衬底基板上,形成黑矩阵和隔离膜;
    通过一次构图工艺,在形成有黑矩阵和隔离膜的衬底基板上,形成第一触控电极和第二触控电极。
  4. 根据权利要求1-3任一项所述的制造方法,其中,
    通过一次构图工艺形成黑矩阵和隔离膜包括:
    形成具有绝缘性的黑矩阵材料层;
    在黑矩阵材料层上涂布光刻胶;
    利用掩膜板对所述光刻胶进行曝光、显影,形成光刻胶全保留区和光刻胶去除区,其中,光刻胶全保留区对应黑矩阵和隔离膜图形区域,所述光刻胶去除区对应其他区域;
    对所述光刻胶去除区的黑矩阵材料层进行刻蚀,形成由黑矩阵材料构成 的黑矩阵以及隔离膜的图形;
    去除剩余的光刻胶。
  5. 根据权利要求1-3任一项所述的制造方法,其中,
    通过一次构图工艺形成黑矩阵和隔离膜包括:
    依次形成透明绝缘材料层和黑矩阵材料层;
    在所述黑矩阵材料层上涂布光刻胶;
    利用半曝光掩膜板对所述光刻胶进行曝光并显影,形成光刻胶全保留区、光刻胶半保留区和光刻胶去除区,其中,光刻胶全保留区对应黑矩阵图形区域,所述光刻胶半保留区对应隔离膜图形区域,所述光刻胶去除区对应其他区域;
    对所述光刻胶去除区的黑矩阵材料层和透明绝缘材料层进行刻蚀;
    对所述光刻胶半保留区的光刻胶进行灰化;
    对所述光刻胶半保留区的黑矩阵材料层进行刻蚀,形成只由透明绝缘材料层构成的隔离膜的图形和由透明绝缘材料层以及黑矩阵材料层构成的黑矩阵图形;
    去除剩余的光刻胶。
  6. 一种触控面板,其中,所述触控面板由权利要求1至5任一项所述的制作方法制成。
  7. 根据权利要求6所述的触控面板,其中,所述黑矩阵和所述隔离膜同层同材料设置。
  8. 一种触控显示装置,包括如权利要求6或7所述的触控面板。
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