WO2017202072A1 - 触控基板及触摸屏显示器 - Google Patents

触控基板及触摸屏显示器 Download PDF

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Publication number
WO2017202072A1
WO2017202072A1 PCT/CN2017/073803 CN2017073803W WO2017202072A1 WO 2017202072 A1 WO2017202072 A1 WO 2017202072A1 CN 2017073803 W CN2017073803 W CN 2017073803W WO 2017202072 A1 WO2017202072 A1 WO 2017202072A1
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Prior art keywords
touch
substrate
line
lines
present disclosure
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English (en)
French (fr)
Inventor
樊浩原
牟勋
杨慧光
吴倩
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BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
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BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
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Priority to US15/554,956 priority Critical patent/US20180107299A1/en
Publication of WO2017202072A1 publication Critical patent/WO2017202072A1/zh
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    • 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
    • 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
    • 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

Definitions

  • Embodiments of the present disclosure relate to the field of displays, and in particular, to a touch substrate and a touch screen display.
  • Capacitive touch technology In-Cell (in-line), OGS (One glass solution) and On-Cell (external) technology.
  • In-cell technology refers to embedding the touch layer inside the upper substrate of the display panel.
  • OGS technology refers to the integration of the touch layer into the inside of the protective glass of the display screen, but this will result in a decrease in the strength of the protective glass, and the impact resistance of the mobile phone is insufficient, and the mobile phone manufacturer evaluates the technical risk.
  • On-Cell technology refers to the integration of the touch layer on the outside of the substrate on the display panel. Because the process is simple, the device does not need to be modified, and the panel manufacturer adopts this technology.
  • On-cell technology MLOC (Multi-layer on cell) and SLOC (Single-layer on cell) technologies have been developed. The former requires 4 exposure processes. The latter only requires one exposure process, and the advantages are obvious. Therefore, SLOC has gradually become the mainstream solution for On cell touch screen technology.
  • FIG. 1 is a schematic view showing the structure of an electrode layer of a SLOC touch substrate in the prior art.
  • the electrode layer of the SLOC touch substrate includes a plurality of touch driving electrode lines (TX) 11 and a touch sensing electrode line (RX) 12 , which may be collectively referred to as touch electrode lines.
  • the touch driving electrode line 11 and the touch sensing electrode line 12 are generally in a fold line shape (for example, a bent line shape bent back and forth as shown in FIG. 1 ) ), and The bending angle is the same as the bending direction.
  • each touch electrode line includes a plurality of electrode strip segments 21, 22 that alternate between two different bending directions.
  • the touch driving electrode 11 and the touch sensing electrode 12 are generally made of a transparent metal oxide such as ITO, and are prepared using a metal deposition and photolithography process.
  • 2 is a partially enlarged cross-sectional view showing a single touch electrode at a position A-A of FIG. 1.
  • the touch electrode may have a certain slope at the edge 23, and when the external light 24 is irradiated, it will reflect on the slope to generate the reflected light 25.
  • the touch electrodes are designed with a fold line, including the line segments 21 and 22 in two directions, when viewed from a specific angle, only the reflection on the line segment in one direction can be seen, and the line segment on the other direction cannot be seen. Reflective.
  • FIG. 3 shows the macroscopic effect caused by the reflection of light rays by different direction line segments which are alternately arranged by the touch electrodes. As shown in FIG. 3, the macroscopic effect is horizontally alternating light and dark stripes, which greatly affects the display effect of the touch screen display.
  • a touch substrate includes: a substrate; and an arrangement of a plurality of touch electrode lines disposed on the substrate, each of the touch electrode lines including a plurality of lines a line segment; wherein each of the line segments includes a plurality of small fold lines or an arc.
  • a touch panel in another aspect of the present disclosure, is provided, wherein the touch panel includes a display panel and the touch substrate according to an embodiment of the present disclosure, and the substrate of the touch substrate is a display panel The upper substrate.
  • a touch screen display including the touch substrate or the touch panel according to an embodiment of the present disclosure is provided.
  • the technical solution of the present disclosure breaks the reflective surface of the touch electrode line by using a small fold line or an approximate arc design, and reduces the reflective area to a visually perceptible range, thereby eliminating or reducing the reflection caused by the touch electrode line.
  • the light and dark stripes improve the display of the touch screen display.
  • FIG. 1 is a schematic structural view of an electrode layer of a SLOC touch substrate in the prior art
  • FIG. 2 is a partial enlarged cross-sectional view showing a single touch electrode at a position A-A in FIG. 1;
  • FIG. 3 illustrates a macroscopic effect caused by the reflection of light rays in different direction line segments which are alternately arranged by the touch electrodes;
  • FIG. 4 illustrates a touch substrate according to an embodiment of the present disclosure
  • FIG. 5 illustrates a partial view of a touch electrode line in accordance with a first type of embodiment of the present disclosure
  • FIG. 6 illustrates a partial view of a touch electrode line in accordance with a second type of embodiment of the present disclosure.
  • the touch substrate 400 includes: a substrate 401; and an array of a plurality of touch electrode lines 402 disposed on the substrate 401, each of the touch electrode lines 402 including a fold line A plurality of line segments 403; wherein each of the line segments 403 includes a plurality of small fold lines or an arc.
  • each touch electrode line 402 in the embodiment of the present disclosure shown in FIG. 4 also includes a plurality of line segments 403, and The plurality of line segments 403 form an overall fold line shape that is bent back and forth to avoid interference between the touch electrode lines and the display electrode lines.
  • each line segment 403 of each touch electrode line 402 in the embodiment of the present disclosure is not a straight line, but includes a plurality of small fold lines or Is an arc.
  • the reflective surface on the edge of the touch electrode line can be broken up, and the reflective area can be reduced to a visually perceptible range, thereby eliminating or reducing the light and dark stripes caused by the reflection, and the technical side
  • the process is difficult and requires no equipment upgrades.
  • the plurality of touch electrode lines 402 may include, for example, a plurality of sets of touch driving electrode lines and a plurality of sets of touch sensing electrode lines. In addition, the plurality of touch electrode lines 402 may be parallel to each other, for example.
  • the substrate is, for example, an upper substrate of a display screen.
  • the touch substrate is a SLOC touch substrate.
  • each of the two adjacent line segments 403 is composed of a plurality of small fold lines 404.
  • each line segment 403 can be comprised of four segments of small fold lines 404 such that the two adjacent line segments 403 are comprised of eight segments of small fold lines 404.
  • each line segment 403 can also be constructed of any other number of multi-segment small fold lines 404.
  • the plurality of small fold lines 404 may be sequentially bent in the same direction as shown in FIG.
  • each small fold line 404 is bent relative to the front small fold line 404 may be the same or different.
  • the plurality of small fold lines 404 of each line segment 403 may also be alternately bent in different directions, that is, bent back and forth.
  • the plurality of small fold lines in one of the two adjacent line segments 403 may be sequentially bent in the same direction, and the other one of the other line segments 403 Small fold lines can be alternately bent in different directions.
  • the bending direction of the plurality of small fold lines 404 of each line segment 403 may also be sequentially reversed. Bend in the hour hand direction.
  • the bending direction of the plurality of small fold lines 404 of one of the two adjacent line segments 403 may be sequentially clockwise, and the bending direction of the plurality of small folding lines 404 of the other line segment 403 may be sequential. The ground is bent counterclockwise.
  • a complete one of the touch electrode lines 403 according to the first type of embodiment of the present disclosure may be repeatedly formed by two adjacent line segments 403 in the embodiment shown in FIG. 5, or two adjacent by any of the above-described modifications.
  • the line segment 403 is repeatedly constructed, or is repeatedly constituted by two adjacent line segments 403 from the different embodiments and modifications of the embodiment shown in Fig. 5 and the above respective modifications.
  • FIG. 6 there is shown a partial view of a touch electrode line 602 in accordance with a second type of embodiment of the present disclosure, showing two adjacent line segments 603 of touch electrode lines 602.
  • each of the two adjacent line segments 603 is formed by an approximate arc, and the approximate arc of each line segment 603 has the same bending direction, thereby two adjacent The approximate arc of line segment 603 constitutes a larger approximate arc.
  • the bending direction of the approximate arc of each of the two adjacent line segments 603 may also be different.
  • the approximate arc of one line segment 603 can be curved to the left, while the approximate arc of the other line segment 603 can be curved to the right.
  • the approximate arc of one or both of the two adjacent line segments 603 is an arc.
  • the arc may be, for example, a circular arc.
  • the radius of curvature and/or the arc length of each of the arcuate arcs may be the same.
  • a complete one of the touch electrode lines 602 according to the second type of embodiment of the present disclosure may be repeatedly formed by two adjacent line segments 603 in the embodiment shown in FIG. 6, or by two adjacent line segments 603 in the above modified example.
  • the configuration is repeated, or is repeated by two adjacent line segments 603 from the embodiment shown in Fig. 6 and the above modification, respectively.
  • the touch substrate may have other components, and the position, structure, and the like relationship between the components may be different from those described and illustrated.
  • the touch substrate may have a different number of touch electrode lines than the illustrated one, and each set of touch electrode lines may include a touch electrode line different from the illustrated number.
  • a touch panel is further provided, wherein the touch panel includes a display panel and the touch substrate according to any embodiment of the present disclosure, and the substrate of the touch substrate is The upper substrate of the display panel.
  • a touch screen display comprising the touch substrate or the touch panel according to any of the embodiments of the present invention.
  • the touch screen display may also include other components such as a display panel backlight, a control panel, etc., and the other components may be existing components, and thus will not be described herein.

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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)
  • Quality & Reliability (AREA)
  • Position Input By Displaying (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

本公开公开了一种触控基板，包括：基板；以及集成到所述基板上的多条触控电极线的排列，每条所述触控电极线包括呈大体折线状的多个线段；其中，每个所述线段包括多段小折线，或者为近似弧线。

Description

触控基板及触摸屏显示器
相关申请的交叉引用
本申请要求于2016年05月23日递交的中国专利申请第201620474470.6号的优先权，在此全文引用上述中国专利申请公开文本的内容以作为本申请的一部分。
技术领域
本公开的实施例涉及显示器领域，具体涉及一种触控基板以及触摸屏显示器。
背景技术
近年来，电容式触控技术在显示领域飞速发展。为了适应手机轻薄化需求，触摸层不再使用单纯的载体基板，而是集成到其它功能层上。电容式触控技术主要划分为In-Cell(内嵌式)、OGS(One glass solution，单片式玻璃)和On-Cell(外嵌式)三种技术。In-cell技术是指将触摸层嵌入到显示面板的上基板内侧，但由于工艺流程多，难度大，良率低，众多厂商望而却步。OGS技术是指将触摸层集成到显示屏幕的保护玻璃内侧，但是这样会导致保护玻璃强度下降，手机抗冲击/抗摔能力不足，手机厂商评价此技术风险较高。On-Cell技术是指将触摸层集成到显示面板上基板外侧，由于工艺简单，设备不需要改造，面板商多采用此技术。在On-cell技术基础上，又演化出MLOC(Multi-layer on cell，多层外嵌式)和SLOC(Single-layer on cell，单层外嵌式)两种技术，前者需要4次曝光工艺，后者只需要一次曝光工艺，优势明显。因此，SLOC逐步成为On cell触摸屏技术的主流方案。
图1示出了现有技术中SLOC触控基板的电极层的结构示意图。如图1中所示，该SLOC触控基板的电极层包括成组交替设置的触控驱动电极线(TX)11和触控感应电极线(RX)12，可统称为触控电极线。为了避免触控电极线与显示屏电极线之间发生干扰，通常触控驱动电极线11和触控感应电极线12均呈折线状(例如，如图1中所示的来回弯折的折线状)，且 弯折角度和弯折方向相同。这样，每条触控电极线就包括若干个相交替的两个不同弯折方向的电极线线段21、22。此外，触控驱动电极11和触控感应电极12通常采用透明金属氧化物(如ITO)，并使用金属沉积和光刻工艺制备。图2示出了图1中位置A－A处的单条触控电极的局部放大剖面图。如图2中所示，由于制备工艺的原因，触控电极在边缘23处会存在一定坡度，当外界光线24照射时，会在坡度上发生反射，产生反射光线25。又由于触控电极采用折线设计，包括沿两个方向的线段21和22，因此从特定角度观察时，将只能看到一个方向的线段上的反光，无法看到另一方向的线段上的反光。例如在图1中，只能看到线段21上的反光，而不能看到线段22上的反光。在图1中采用黑色加粗线表示在某一角度观察时，触控电极的反光部分。图3示出了由于触控电极的交替设置的不同方向线段对光线的反射造成的宏观效果。如图3中所示，所述宏观效果为横向交替的明暗条纹，这极大地影响触摸屏显示器的显示效果。
可见，本领域中需要一种能够克服上述现有技术的缺点的改进的触控基板的解决方案。
发明内容
在本公开的一个方面，提供了一种触控基板，包括：基板；以及设置在所述基板上的多条触控电极线的排列，每条所述触控电极线包括呈折线状多个线段；其中，每个所述线段包括多段小折线，或者为弧线。
在本公开的另一个方面，提供了一种触控面板，其中，所述触控面板包括显示面板以及根据本公开的实施例的所述触控基板，所述触控基板的基板为显示面板的上基板。
在本公开的另一个方面，提供了一种触摸屏显示器，包括根据本公开的实施例的所述触控基板或者所述触控面板。
本公开的技术方案通过采用小折线或近似弧线设计，将触控电极线的反光面打散,将反光面积降低到视觉可觉察的范围外，从而消除或减轻了由触控电极线反光造成的明暗条纹，改善了触摸屏显示器的显示效果。
附图说明
图1为现有技术中SLOC触控基板的电极层的结构示意图；
图2示出了图1中位置A－A处的单条触控电极的局部放大剖面图；
图3示出了由于触控电极的交替设置的不同方向线段对光线的反射造成的宏观效果；
图4示出了根据本公开的实施例的一种触控基板；
图5示出了根据本公开的第一类实施例的触控电极线的局部视图；
图6示出了根据本公开的第二类实施例的触控电极线的局部视图。
具体实施方式
为使本领域的技术人员更好地理解本公开的解决方案，下面结合附图和具体实施方式对本公开的实施例所提供的触控基板及触摸屏显示器作进一步详细描述。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。
现参照图4，其示出了根据本公开的实施例的一种触控基板400。如图4中所示，该触控基板400包括：基板401；以及设置在所述基板401上的多条触控电极线402的排列，每条所述触控电极线402包括呈折线状的多个线段403；其中，每个所述线段403包括多段小折线，或者为弧线。
也就是说，与图1中所示现有技术的触控电极线11、12类似，图4所示的本公开的实施例中的每条触控电极线402也包括多个线段403，且所述多个线段403形成来回弯折的总体折线状，以避免触控电极线与显示屏电极线之间发生干扰。但与图中所示现有技术的触控电极线11、12不同的是，本公开的实施例中的每条触控电极线402的每个线段403并非直线，而是包括多段小折线或者为弧线。这样，就可以将触控电极线边缘坡度上的反光面打散，将反光面积降低到视觉可觉察的范围之外，从而消除或减轻由反光造成的明暗条纹，且技术方 案工艺难度低，无需制造设备升级。
所述多条触控电极线402例如可包括交替设置的若干组触控驱动电极线和若干组触控感应电极线。此外，所述多条触控电极线402之间例如可以相互平行。
所述基板例如为显示屏的上基板，相应地，所述触控基板为SLOC触控基板。
现参照图5，其示出了根据本公开的第一类实施例的触控电极线402的局部视图，其中示出了一组触控电极线402的两个相邻线段403。如图5中所示，所述两个相邻线段403中的每个线段403都由多段小折线404构成。例如，每个线段403都可以由四段小折线404构成，从而所述两个相邻线段403由八段小折线404构成。当然，每个线段403也可以由任何其他数量的多段小折线404构成。所述多段小折线404可以如图5中所示那样顺次向同方向弯折，每段小折线404相对于前段小折线404弯折的角度可以相同或不同。在第一类实施例的一变形例中，每个线段403的所述多个小折线404也可以交替地向不同方向弯折，即来回弯折。在第一类实施例的另一变形例中，所述两个相邻线段403中的一个线段403中的多个小折线可以顺次地向同方向弯折，而另一个线段403中的多个小折线可以交替地向不同方向弯折。
此外，尽管在图5中示出的所述两个相邻线段403之间，每个线段403的多段小折线404的弯折方向，从下面的第一段小折线到上面的最后一段小折线，是顺次地顺时针方向弯折，在第一类实施例的其他变形例中，两个相邻线段中的每个线段403的多段小折线404的弯折方向也可以是顺次地逆时针方向弯折。或者，两个相邻线段中的一个线段403的多段小折线404的弯折方向可以是顺次地顺时针方向弯折，而另一个线段403的多段小折线404的弯折方向可以是顺次地逆时针方向弯折。
根据本公开的第一类实施例的完整的一条触控电极线403可以由图5中所示实施例中的两个相邻线段403重复构成，或者由上述任一变形例中两个相邻线段403重复构成，或者由分别来自图5中所示实施例及上述各变形例中的不同实施例和变形例的两个相邻线段403重复构成。
现参照图6，其示出了根据本公开的第二类实施例的触控电极线602的局部视图，其中示出了触控电极线602的两个相邻线段603。如图6中所示，所述两个相邻线段603中的每个线段603都由近似弧线构成，且每个线段603的近似弧线的弯曲方向相同，从而两个相邻 线段603的近似弧线构成一个更大的近似弧线。
在第二类实施例的其他变形例中，两个相邻线段603中的每个线段603的近似弧度的弯曲方向也可以是不同的。例如，一个线段603的近似弧度可以向左侧弯曲，而另一个线段603的近似弧度可以向右侧弯曲。
在第二类实施例的进一步的变形例中，所述两个相邻线段603中的一个或两个线段603的近似弧线为弧线。所述弧线例如可以为圆弧形。进一步地，每个所述圆弧形弧线的曲率半径和/或弧长可以相同。
根据本公开的第二类实施例的完整的一条触控电极线602可以由图6中所示实施例中的两个相邻线段603重复构成，或者由上述变形例中两个相邻线段603重复构成，或者由分别来自图6中所示实施例及上述变形例的两个相邻线段603重复构成。
以上参照附图描述了根据本公开的实施例的触控基板，应指出的是，以上描述仅为示例，而不是对本公开的限制。在本公开的其他实施例中，所述触控基板可具有其他部件，且各部件之间的位置、结构等关系可以与所描述和图示的不同。例如，所述触控基板可具有与图示数量不同的触控电极线组，且每组触控电极线可包括与图示数量不同的触控电极线。
在本公开的另一个方面，还提供了一种触控面板，其中，所述触控面板包括显示面板以及根据本公开的任何实施例的所述触控基板，所述触控基板的基板为显示面板的上基板。
在本公开的另一个方面，还提供了一种触摸屏显示器，其包括根据本发明的任何实施例的所述触控基板或者所述触控面板。如本领域的技术人员所知的，该触摸屏显示器还可包括其他部件，例如显示面板背光板、控制板等，所述其他部件可以是现有的部件，因此在此不再赘述。
可以理解的是，本公开的以上各实施例仅仅是为了说明本公开的原理而采用的示例性实施例，本公开并不局限于此。对于本领域内的普通技术人员而言，在不脱离本公开的精神和实质的情况下，可以做出各种变型和改进，这些变型和改进也视为处于本公开的保护范围之内。本公开的保护范围仅由所附权利要求书的语言表述的含义及其等同含义所限定。

Claims (9)

  1. 一种触控基板，包括：
    基板；以及
    设置在所述基板上的多条触控电极线的排列，每条所述触控电极线包括呈折线状的多个线段；
    其中，每个所述线段包括多段小折线，或者为弧线。
  2. 根据权利要求1的触控基板，其中，所述多条触控电极线之间相互平行。
  3. 根据权利要求1的触控基板，其中，所述弧线为圆弧形。
  4. 根据权利要求3的触控基板，其中，每个所述圆弧形弧线的曲率半径和/或弧长相同。
  5. 根据权利要求1的触控基板，其中，所述多段小折线交替地向不同方向弯折。
  6. 根据权利要求1的触控基板，其中，所述多段小折线顺次向同方向弯折。
  7. 根据权利要求1的触控基板，其中，所述多段小折线为四段小折线。
  8. 一种触控面板，其中，所述触控面板包括显示面板以及如权利要求1-7中任何一个所述的触控基板，所述触控基板的基板为显示面板的上基板。
  9. 一种触摸屏显示器，包括如权利要求1－7中任何一个所述的触控基板或者包括如权利要求8所述的触控面板。
PCT/CN2017/073803 2016-05-23 2017-02-16 触控基板及触摸屏显示器 Ceased WO2017202072A1 (zh)

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