WO2014161243A1 - 触摸屏 - Google Patents

触摸屏 Download PDF

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Publication number
WO2014161243A1
WO2014161243A1 PCT/CN2013/079161 CN2013079161W WO2014161243A1 WO 2014161243 A1 WO2014161243 A1 WO 2014161243A1 CN 2013079161 W CN2013079161 W CN 2013079161W WO 2014161243 A1 WO2014161243 A1 WO 2014161243A1
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WO
WIPO (PCT)
Prior art keywords
polymer layer
touch screen
layer
lead
screen according
Prior art date
Application number
PCT/CN2013/079161
Other languages
English (en)
French (fr)
Inventor
唐根初
董绳财
刘伟
唐彬
Original Assignee
深圳欧菲光科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳欧菲光科技股份有限公司 filed Critical 深圳欧菲光科技股份有限公司
Priority to JP2015509298A priority Critical patent/JP2015515705A/ja
Priority to KR1020137026488A priority patent/KR101574401B1/ko
Priority to US13/968,320 priority patent/US9639215B2/en
Publication of WO2014161243A1 publication Critical patent/WO2014161243A1/zh

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Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR 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
    • G06F3/0445Digitisers, 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
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04112Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material

Definitions

  • the present invention relates to the field of touch, and in particular to a touch screen. Background technique
  • the touch screen also known as “touch screen” or “touch panel” is an inductive liquid crystal display device that can receive input signals such as contacts.
  • the on-screen tactile feedback system can drive various linkage devices according to a pre-programmed program, which can be used to replace the mechanical button panel and create a live-action audio and video effect through the liquid crystal display.
  • the touch screen is the simplest, most convenient and natural way of human-computer interaction.
  • Capacitive touch screens use the current sensing of the human body to work.
  • the capacitive touch screen is a four-layer composite glass screen. The inner surface and the interlayer of the glass screen are coated with a layer of germanium (Indium Tin Oxide transparent conductive film).
  • the outermost layer is a thin layer of bauxite glass protective layer.
  • the interlayer ITO coating is used as the interlayer.
  • the working surface has four electrodes on the four corners, and the inner layer ⁇ is a shielding layer to ensure a good working environment.
  • the finger touches the metal layer the user and the surface of the touch screen form a coupling capacitor due to the human body electric field.
  • the capacitor is a direct conductor, and the finger sucks a small current from the contact point. This current is discharged from the electrodes on the four corners of the touch screen, and the current flowing through the four electrodes is proportional to the distance from the finger to the four corners.
  • the controller calculates the position of the touch point by accurately calculating the ratio of the four currents. .
  • OGS One Glass Solution
  • the benefits of 0GS have three points: (1) saving a layer of glass cost and reducing the cost of a single paste; (2) reducing the weight; (3) increasing the transmittance.
  • 0GS can better meet the ultra-thinning requirements of smart terminals and improve the display effect. It is an inevitable choice for high-end brand terminals next year. current
  • the 0GS touch screen is mainly used to lay IT0 on the surface of the protective glass, so that the protective glass acts both as a sensor and as a protection; IT0 is raised on the surface of the glass.
  • the conductive material of the existing OGS is disposed on the surface of the glass, and the ITO is raised on the surface.
  • the conductive material is easily scratched, resulting in damage to the device, which cannot be used normally.
  • the main material of OGS is ITO.
  • the main material of ITO is mainly rare metal indium.
  • the indium material is rare, so the cost is relatively expensive, and in the process of production. Need to do the lamination process, the cost is relatively high. Summary of the invention
  • a touch screen includes a position sensing component and a display component, the position sensing component comprising: a substrate including a first surface and a second surface opposite to the first surface; a first polymer layer formed on the a first surface of the substrate; a conductive material embedded in the first polymer layer to form a first conductive region and a first lead on the surface of the first polymer layer; and a second polymer layer formed in the On the surface of the first polymer layer; a conductive material is embedded in the second polymer layer to form a second conductive region and a second lead on the surface of the second polymer layer.
  • the first polymer layer and the second polymer layer form a grid-like trench; the conductive material is filled in the trench.
  • the first lead and the second lead grid-like trench have a mesh period of less than 50 and a transmittance of less than 70%.
  • the grid-like grooves are regular grids or random grids.
  • the ratio of the depth to the width of the trenches in the first polymer layer and the second polymer layer is greater than one.
  • the second polymer layer is further provided with a notch, the pin of the first lead is located in the notch, and the second lead is disposed on a surface of the second polymer layer.
  • the position sensing component is coupled to the display component by an optical glue.
  • the touch screen further includes a light shielding layer, the light shielding layer is located between the first polymer layer and the substrate; or between the second polymer layer and the optical glue .
  • the light shielding layer is located between the second polymer layer and the optical glue, wherein the length of the second polymer layer is shorter than the length of the first polymer layer and the light shielding layer, The first lead and the second lead are led out through the through hole on the light shielding layer.
  • the second polymer layer is provided with a protective layer on the surface thereof to prevent oxidation of the conductive material.
  • the light shielding layer is an ink layer or a black photoresist layer and has a thickness of 1 to 10 ⁇ m.
  • the substrate is glass.
  • the above touch screen saves the existing transparent conductive film, and the conductive effect is achieved by embedding the conductive material in the first and second polymer layers, and the material cost is low.
  • the touch screen has a simple process and a low production cost in the process of production bonding.
  • FIG. 1 is a cross-sectional view showing a first embodiment of a touch panel of the present embodiment.
  • FIG 2 is another schematic cross-sectional view of the first embodiment of the touch screen of the embodiment.
  • FIG. 3 is a perspective view of the position sensing assembly of the first embodiment of the touch screen of the embodiment.
  • 4 is a schematic diagram of a groove of the touch screen position sensing assembly shown in FIG. 3 as a random grid.
  • FIG. 7 is another schematic cross-sectional view of a second embodiment of the touch screen of the embodiment.
  • FIG. 8 is a partially exploded perspective view of the second embodiment of the touch screen of the embodiment.
  • FIG. 9 is a cross-sectional view showing a third embodiment of the touch panel of the embodiment.
  • FIG. 10 is another schematic cross-sectional view showing a third embodiment of the touch screen of the embodiment.
  • Figure 11 is a partially exploded perspective view of the third embodiment of the touch screen of the present embodiment.
  • FIG. 12 is a partial perspective view of a third embodiment of the touch screen of the embodiment. detailed description
  • the touch screen 100 includes Position sensing component 110 and display component 120
  • the position sensing component 110 includes a substrate 111, a first polymer layer 112, and a second polymer layer 113.
  • the substrate 111 includes a first surface 1111 and a second surface 1112 opposite the first surface 1111.
  • the first polymer layer 112 is formed on the first surface 1111 of the substrate 111; the first polymer layer 112 is embedded with a conductive material to form the first conductive region 114 and the first lead on the surface of the first polymer layer 112. 115.
  • the second polymer layer 113 is formed on the surface of the first polymer layer 112; the second polymer layer 113 is embedded with a conductive material to form the second conductive region 116 and the second lead 117 on the surface of the second polymer layer 113.
  • the position sensing assembly 110 and the display assembly 120 are coupled by an optical glue 130.
  • the substrate 111 is made of glass.
  • a notch 1131 is further provided on the second polymer layer 113.
  • the lead of the first lead 115 is located in the notch 1131.
  • the second lead 117 is disposed on the surface of the second polymer layer 113.
  • the conductive material is embedded in the first polymer layer 112 and the second polymer layer 113 by the following specific manner: the surfaces of the first polymer layer 112 and the second polymer layer 112 are patterned to form a grid-like groove. 118. A conductive material is filled in the trench.
  • the trenches are random meshes, and the random meshes are evenly distributed in all directions.
  • the grooves can also be regular grids that are evenly distributed in all directions.
  • the first polymer layer 112 and the grooves in the second polymer layer 113 may have the same form or different forms.
  • the ratio of the depth to the width of the trench can be made greater than one.
  • the trenches in the first lead 115 and the second lead 117 have a width of 1 to 5 micrometers, a depth of 2 to 6 micrometers, a mesh period of less than 50, and a transmittance of less than 70%; The overshoot rate is greater than 88.4%.
  • the optical adhesive 130 having no oxidizing property may be used, or the following scheme may be adopted.
  • the second polymer layer 113 is provided with a protective layer on the surface of the second polymer layer 113 to prevent the conductive material 114 from being oxidized. , its thickness is 1 micron.
  • the touch screen 100 of the present embodiment saves the transparent conductive film, and the conductive effect is achieved by embedding the conductive material in the first and second polymer layers, and the material cost is low.
  • the touch screen 100 has a simple process, a high production efficiency, a lower production cost, and a lighter weight in the process of producing the bonding, and the touch screen 100 is made thinner overall due to the conductive material being embedded in the first and second polymer layers.
  • a second embodiment of the touch screen of the present embodiment is similar to the touch screen 100 .
  • the touch screen 200 also includes a position sensing component 210 and a display component 220 .
  • the position sensing assembly 210 also includes a substrate 211, a first polymer layer 212, and a second polymer layer 213.
  • a conductive material is embedded in the first polymer layer 212 to form a first conductive region 214 and a first lead 215 on the surface of the first polymer layer 212.
  • the second polymer layer 213 is formed on the surface of the first polymer layer 212; the second polymer layer 213 is embedded with a conductive material to form a second conductive region 216 and a second lead on the surface of the second polymer layer 213. 217.
  • the position sensing assembly 210 is coupled to the display assembly 220 by an optical glue 230.
  • the touch screen 200 further includes a light shielding layer 240 between the first polymer layer 212 and the substrate 211.
  • the light shielding layer 240 is an ink layer or a black photoresist layer and has a thickness of 1 to 10 ⁇ m.
  • the thickness of the ink layer can be 6 microns
  • the thickness of the black photoresist layer can be 1 micron.
  • a notch 2131 is further disposed on the second polymer layer 213.
  • the lead of the first lead 215 is located in the notch 2131.
  • the second lead 217 is disposed on the surface of the second polymer layer 213.
  • the touch screen 200 of the present embodiment saves the transparent conductive film, and the conductive effect is achieved by embedding the conductive material in the first and second polymer layers, and the material cost is low.
  • the touch screen 200 has a simple process in the process of production bonding, improves production efficiency, is low in production cost, and is lighter in weight, and the conductive screen is embedded in the first and second polymer layers to make the touch screen 200 structure thinner overall.
  • the touch screen 200 is also provided with a light shielding layer 240.
  • the third embodiment of the touch screen of the present embodiment is similar to the touch screen 200 .
  • the touch screen 300 of the embodiment also includes a position sensing component 310 and a display component 320 .
  • the position sensing assembly 310 also includes a substrate 311, a first polymer layer 312, and a second polymer layer 313.
  • a conductive material is embedded in the first polymer layer 312 to form a first conductive region 314 and a first lead 315 on the surface of the first polymer layer 312.
  • a second polymer layer 313 is formed on the surface of the first polymer layer 312; a conductive material is embedded in the second polymer layer 313 to form a second conductive region 316 and a second lead on the surface of the second polymer layer 313 317.
  • the position sensing assembly 310 is coupled to the display assembly 320 by an optical glue 330.
  • the touch screen 300 is also provided with a light shielding layer 340.
  • the touch screen 300 of the third embodiment 300 differs from the touch screen 200 of the second embodiment mainly in the position of the light shielding layer.
  • the light shielding layer 340 is located on the surface of the second polymer layer 313, that is, between the second polymer layer 313 and the optical glue 330. As shown in FIG.
  • the base 311 and the first polymer layer 312 of the position sensing component 310 have the same length a
  • the second polymer layer 313 has a length b, b ⁇ a
  • the length of the light shielding layer 340 is also ⁇
  • the first polymer layer 312 is located above the substrate 311, the second polymer layer 313 is located above the first polymer layer 312, and the display assembly 320 is located above the light shielding layer 340.
  • the length of the second polymer layer 313 is shorter than the length of the first polymer layer 312, and when the second polymer layer 313 is located on the first polymer layer 312, one end of the first polymer layer 312 is exposed. It comes out to form an area, and the first lead 315 is exposed to the area.
  • the light shielding layer 340 is located on the second polymer layer 313 and the above region (relative to the first polymer layer 312 exposed by the second polymer layer 313), in order to facilitate the implementation of the first lead 315 of the touch screen 300,
  • the two leads 317 are connected to the external flexible circuit board, and the first lead 315 and the second lead 317 are led out through the through hole, and the position of the through hole of the first lead 315 is taken out of the second polymer layer 313.
  • the through hole of the second lead 317 is drawn directly above the second polymer layer 313.
  • Conductive materials are respectively embedded in the through holes, and the first leads 315 and the second leads 317 are drawn into the holes of the light shielding layer 340 to the upper surface of the light shielding layer 340. As shown in Fig. 11, the first lead 315 and the second lead 317 are connected to the flexible circuit board in the same plane.
  • the touch screen 300 of the present embodiment saves the transparent conductive film, and the conductive effect is achieved by embedding the conductive material in the first and second polymer layers, and the material cost is low.
  • the touch screen 300 has a simple process in the process of production bonding, improves production efficiency, has lower production cost, is lighter in weight, and is made to be touched by the conductive material embedded in the first and second polymer layers.
  • the screen 300 structure is thinner overall.
  • the touch screen 300 is also provided with a light shielding layer 340.

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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)
  • Position Input By Displaying (AREA)
  • Laminated Bodies (AREA)

Abstract

本发明揭露了一种触摸屏,包括位置传感组件与显示组件。位置传感组件包括:基底、第一聚合物层及第二聚合物层,第一聚合物层形成于基底的表面上,第一聚合物层内嵌入导电材料,以在第一聚合物层的表面形成第一导电区域与第一引线,第二聚合物层形成于第一聚合物层表面上;第二聚合物层内嵌入导电材料,以在第二聚合物层的表面形成第二导电区域与第二引线。触摸屏节省了现有的透明导电薄膜,通过第一、二聚合物层内嵌入导电材料的方式达到传导的功效,材料成本较低。触摸屏在生产贴合的过程中工艺较简单,生产成本较低。

Description

触摸屏
技术领域
本发明涉及触控领域, 特别是涉及一种触摸屏。 背景技术
触摸屏又称为 "触控屏"、 "触控面板", 是一种可接收触头等输入讯号 的感应式液晶显示装置。 当接触了屏幕上的图形按钮时, 屏幕上的触觉反 馈系统可根据预先编程的程式驱动各种连结装置, 可用以取代机械式的按 钮面板, 并借由液晶显示画面制造出生动的影音效果。 触摸屏作为一种最 新的电脑输入设备, 它是目前最简单、 方便、 自然的一种人机交互方式。 电容式触摸屏是利用人体的电流感应进行工作的。 电容式触摸屏是一块四 层复合玻璃屏, 玻璃屏的内表面和夹层各涂有一层 Π ( Indium Tin Oxide 透明导电薄膜) , 最外层是一薄层矽土玻璃保护层, 夹层 ITO涂层作为工 作面,四个角上引出四个电极,内层 ιτο为屏蔽层以保证良好的工作环境。 当手指触摸在金属层上时, 由于人体电场, 用户和触摸屏表面形成以一个 耦合电容, 对于高频电流来说, 电容是直接导体, 于是手指从接触点吸走 一个很小的电流。 这个电流分从触摸屏的四角上的电极中流出, 并且流经 这四个电极的电流与手指到四角的距离成正比, 控制器通过对这四个电流 比例的精确计算, 得出触摸点的位置。
OGS ( One Glass Solution, 一体化触控) 将成为触控产业的主导技术 方向。 0GS的好处有三点: (1)节省了一层玻璃成本和减少了一次贴合成 本; (2)减轻了重量; (3)增加了透光度。 0GS能够较好的满足智能终端超 薄化需求, 并提升显示效果, 是明年高端品牌终端的必然选择。 现有的
0GS触摸屏主要是在保护玻璃表面铺设 IT0,这样保护玻璃既起到传感器 又起到保护作用; IT0凸起在玻璃表面。
现有 OGS 的导电材料设置在玻璃的表面, ITO凸起在表面, 这样的 导电材料容易被划伤, 从而致使器件的损坏, 而不能正常使用; OGS的主 要材料为 ITO, ITO的主要材料主要是稀有金属铟, 铟材料的稀有, 所以 成本比较昂贵, 而且生产的过程中需要做贴合工艺, 成本比较高。 发明内容
基于此, 提供一种工艺较简单、 成本较低的触摸屏。
一种触摸屏, 包括位置传感组件与显示组件, 所述位置传感组件包括: 基底, 包括第一表面及与所述第一表面相对的第二表面; 第一聚合物层, 形成于所述基底的第一表面上; 所述第一聚合物层内嵌入导电材料, 以在 所述第一聚合物层的表面形成第一导电区域与第一引线; 及第二聚合物 层,形成于所述第一聚合物层表面上;所述第二聚合物层内嵌入导电材料, 以在所述第二聚合物层的表面形成第二导电区域与第二引线。
在其中一个实施例中, 所述第一聚合物层与第二聚合物层的形成网格 状的沟槽; 所述导电材料填充于所述沟槽内。
在其中一个实施例中, 所述第一引线与所述第二引线网格状沟槽的网 格周期小于 50, 且透过率小于 70%。
在其中一个实施例中, 所述网格状的沟槽为规则网格或随机网格。 在其中一个实施例中, 所述第一聚合物层、 第二聚合物层内的沟槽的 深度与宽度之比大于 1。
在其中一个实施例中, 所述第二聚合物层上还设置缺口, 所述第一引 线的引脚位于所述缺口内, 所述第二引线设置于所述第二聚合物层的表 面。
在其中一个实施例中, 所述位置传感组件与所述显示组件通过光学胶 连接。
在其中一个实施例中, 所述触摸屏还包括遮光层, 所述遮光层位于所 述第一聚合物层与所述基底之间; 或位于所述第二聚合物层与所述光学胶 之间。 在其中一个实施例中, 所述遮光层位于第二聚合物层与所述光学胶之 间, 其中所述第二聚合物层的长度短于第一聚合物层、 遮光层的长度, 所 述遮光层上通过通孔的方式引出所述第一引线、 第二引线。
在其中一个实施例中, 所述第二聚合物层表面上设有一层防止所述导 电材料被氧化的保护层。
在其中一个实施例中, 所述遮光层为油墨层或黑色光阻层, 且厚度为 1~10微米。
在其中一个实施例中, 所述基片为玻璃。
上述触摸屏, 节省了现有的透明导电薄膜, 通过第一、 二聚合物层内 嵌入导电材料的方式达到传导的功效, 材料成本较低。 触摸屏在生产贴合 的过程中工艺较简单, 生产成本较低。 附图说明
图 1 为本实施方式触摸屏第一实施例的一剖视示意图。
图 2为本实施方式触摸屏第一实施例的另一剖视示意图。
图 3为本实施方式触摸屏第一实施例位置传感组件的立体示意图。 图 4为图 3所示触摸屏位置传感组件的沟槽为随机网格的示意图。 图 5为图 3所示触摸屏位置传感组件的沟槽为规则网格的示意图。 图 6为本实施方式触摸屏第二实施例的一剖视示意图。
图 7为本实施方式触摸屏第二实施例的另一剖视示意图。
图 8为本实施方式触摸屏第二实施例的部分分解示意图。
图 9为本实施方式触摸屏第三实施例的一剖视示意图。
图 10为本实施方式触摸屏第三实施例的另一剖视示意图。
图 11位本实施方式触摸屏第三实施例的部分分解示意图。
图 12为本实施方式触摸屏第三实施例的部分立体示意图。 具体实施方式
请参图 1至图 5, 本实施方式触摸屏的第一实施例, 该触摸屏 100包 括位置传感组件 110与显示组件 120位置传感组件 110包括基底 111、 第 一聚合物层 112及第二聚合物层 113。基底 111包括第一表面 1111及与所 述第一表面 1111相对的第二表面 1112。第一聚合物层 112形成于基底 111 的第一表面 1111上; 第一聚合物层 112内嵌入导电材料, 以在所述第一 聚合物层 112的表面形成第一导电区域 114与第一引线 115。 第二聚合物 层 113形成于第一聚合物层 112表面上; 第二聚合物层 113内嵌入导电材 料,以在第二聚合物层 113的表面形成第二导电区域 116与第二引线 117。 位置传感组件 110与显示组件 120通过光学胶 130连接。 本实施例中, 基 底 111为玻璃材质。
如图 3所示, 为方便和外接的柔性电路板 (未图示) 相连接, 第二聚 合物层 113上还设置缺口 1131。其中,第一引线 115的引脚位于缺口 1131 内。 第二引线 117设置于第二聚合物层 113的表面。
导电材料嵌入第一聚合物层 112、 第二聚合物层 113内, 是通过如下 具体方式实现的: 第一聚合物层 112与第二聚合物层 112的表面图形化形 成网格状的沟槽 118, 导电材料填充于沟槽内。
如图 4所示, 沟槽为随机网格, 随机网格在各个方向上均匀分布。 如 图 5所示,沟槽也可为规则网格,在各个方向均匀分布。第一聚合物层 112 与第二聚合物层 113内的沟槽两者之间可以是相同的形态, 也可以是不同 的形态。
为使导电材料在沟槽内稳固并保证导电性能, 可以使沟槽的深度与宽 度之比大于 1来实现。第一引线 115与第二引线 117中的沟槽的宽度为 1~5 微米, 深度为 2~6微米, 网格周期小于 50, 且透过率小于 70%; 所述位 置传感组件的透过率大于 88.4%。
为保证沟槽中的导电材料不被氧化, 可以通过采用不具有氧化性的光 学胶 130, 也可以采用如下方案, 第二聚合物层 113表面上设有一层防止 导电材料 114被氧化的保护层, 其厚度 1微米。 当然, 也可以同时采用上 述两种技术方案保护导电材料 114不被氧化。 相对现有的触摸屏, 本实施方式触摸屏 100节省了透明导电薄膜, 通 过第一、 二聚合物层内嵌入导电材料的方式达到传导的功效, 材料成本较 低。 触摸屏 100在生产贴合的过程中工艺简单, 提高生产的效率, 生产成 本较低, 重量更轻, 而且由于导电材料嵌入第一、 二聚合物层内, 使触摸 屏 100结构从整体上更薄。
请参图 6至图 8, 为本实施方式触摸屏的第二实施例, 与触摸屏 100 相似, 触摸屏 200也包括位置传感组件 210与显示组件 220。 位置传感组 件 210也包括基底 211、 第一聚合物层 212及第二聚合物层 213。 第一聚 合物层 212内嵌入导电材料, 以在第一聚合物层 212的表面形成第一导电 区域 214与第一引线 215。 第二聚合物层 213形成于第一聚合物层 212表 面上; 第二聚合物层 213内嵌入导电材料, 以在所述第二聚合物层 213的 表面形成第二导电区域 216与第二引线 217。 位置传感组件 210与显示组 件 220通过光学胶 230连接。
与第一实施例触摸屏 100不同, 触摸屏 200还包括遮光层 240, 遮光 层 240位于第一聚合物层 212与基底 211之间。遮光层 240为油墨层或黑 色光阻层, 且厚度为 1~10微米。 优选的, 油墨层的厚度可以做到 6微米, 黑色光阻层的厚度可以做到 1微米。 本实施例中, 第二聚合物层 213上还 设置缺口 2131。 其中, 第一引线 215的引脚位于缺口 2131内。 第二引线 217设置于第二聚合物层 213的表面。
相对现有的触摸屏, 本实施方式触摸屏 200节省了透明导电薄膜, 通 过第一、 二聚合物层内嵌入导电材料的方式达到传导的功效, 材料成本较 低。 触摸屏 200在生产贴合的过程中工艺简单, 提高生产的效率, 生产成 本较低, 重量更轻, 而且由于导电材料嵌入第一、 二聚合物层内, 使触摸 屏 200结构从整体上更薄。 触摸屏 200还设置有遮光层 240。
请参图 9至图 12, 为本实施方式触摸屏的第三实施例, 与触摸屏 200 相似, 本实施例触摸屏 300也包括位置传感组件 310与显示组件 320。 位 置传感组件 310也包括基底 311、第一聚合物层 312及第二聚合物层 313。 第一聚合物层 312内嵌入导电材料, 以在第一聚合物层 312的表面形成第 一导电区域 314与第一引线 315。 第二聚合物层 313形成于第一聚合物层 312表面上; 第二聚合物层 313内嵌入导电材料, 以在所述第二聚合物层 313的表面形成第二导电区域 316与第二引线 317。 位置传感组件 310与 显示组件 320通过光学胶 330连接。
触摸屏 300也设置有遮光层 340, 第三实施例 300的触摸屏 300与第 二实施例的触摸屏 200区别点主要在于遮光层的位置不同。遮光层 340位 于第二聚合物层 313的表面, 也即位于第二聚合物层 313与光学胶 330之 间。 如图 11所述, 位置传感组件 310的基底 311、 第一聚合物层 312的长 度相同均为 a, 第二聚合物层 313的长度为 b, b<a, 遮光层 340的长度也 为 ^ 第一聚合物层 312位于基底 311上方, 第二聚合物层 313位于第一 聚合物层 312上方, 显示组件 320位于遮光层 340的上方。 整体上看, 第 二聚合物层 313的长度短于第一聚合物层 312的长度,当第二聚合物层 313 位于第一聚合物层 312上时, 第一聚合物层 312的一端被暴露出来形成一 个区域, 并将第一引线 315暴露在该区域。 如图 12所示, 遮光层 340位 于第二聚合物层 313及上述区域(相对第二聚合物层 313露出的第一聚合 物层 312 ) 上, 为方便实现触摸屏 300的第一引线 315、 第二引线 317与 外接的柔性电路板相连接, 将遮光层 340通过通孔的方式引出第一引线 315与第二引线 317,引出第一引线 315的通孔的位置在第二聚合物层 313 外缘, 引出第二引线 317的通孔在于第二聚合物层 313正上方。 在通孔中 分别嵌入导电材料, 第一引线 315、 第二引线 317至遮光层 340的孔内引 出至遮光层 340的上表面。 如图 11所示, 第一引线 315与第二引线 317 在相同的平面上与柔性电路板相连接。
相对现有的触摸屏, 本实施方式触摸屏 300节省了透明导电薄膜, 通 过第一、 二聚合物层内嵌入导电材料的方式达到传导的功效, 材料成本较 低。 触摸屏 300在生产贴合的过程中工艺简单, 提高生产的效率, 生产成 本较低, 重量更轻, 而且由于导电材料嵌入第一、 二聚合物层内, 使触摸 屏 300结构从整体上更薄。 触摸屏 300还设置有遮光层 340。
以上所述实施例仅表达了本发明的几种实施方式, 其描述较为具体和 详细, 但并不能因此而理解为对本发明专利范围的限制。 应当指出的是, 对于本领域的普通技术人员来说, 在不脱离本发明构思的前提下, 还可以 做出若干变形和改进, 这些都属于本发明的保护范围。 因此, 本发明专利 的保护范围应以所附权利要求为准。

Claims

权 利 要 求 书
1、 一种触摸屏, 包括位置传感组件与显示组件, 其特征在于, 所述位 置传感组件包括:
基底, 包括第一表面及与所述第一表面相对的第二表面;
第一聚合物层, 形成于所述基底的第一表面上; 所述第一聚合物层内 嵌入导电材料, 以在所述第一聚合物层的表面形成第一导电区域与第一引 线; 及
第二聚合物层, 形成于所述第一聚合物层表面上; 所述第二聚合物层 内嵌入导电材料, 以在所述第二聚合物层的表面形成第二导电区域与第二 引线。
2、 根据权利要求 1所述的触摸屏, 其特征在于, 所述第一聚合物层 与第二聚合物层的形成网格状的沟槽; 所述导电材料填充于所述沟槽内。
3、 根据权利要求 2所述的触摸屏, 其特征在于, 所述第一引线与所 述第二引线网格状沟槽的网格周期小于 50, 且透过率小于 70%。
4、 根据权利要求 2所述的触摸屏, 其特征在于, 所述网格状的沟槽 为规则网格或随机网格。
5、 根据权利要求 2所述的触摸屏, 其特征在于, 所述第一聚合物层、 第二聚合物层内的沟槽的深度与宽度之比大于 1。
6、 根据权利要求 1所述的触摸屏, 其特征在于, 所述第二聚合物层 上还设置缺口, 所述第一引线的引脚位于所述缺口内, 所述第二引线设置 于所述第二聚合物层的表面。
7、 根据权利要求 1~6项中任一项所述的触摸屏, 其特征在于, 所述 位置传感组件与所述显示组件通过光学胶连接。
8、 根据权利要求 7所述的触摸屏, 其特征在于, 所述触摸屏还包括 遮光层, 所述遮光层位于所述第一聚合物层与所述基底之间; 或位于所述 第二聚合物层与所述光学胶之间。
9、 根据权利要求 8所述的触摸屏, 其特征在于, 所述遮光层位于第 二聚合物层与所述光学胶之间, 其中所述第二聚合物层的长度短于第一聚 合物层、遮光层的长度,所述遮光层上通过通孔的方式引出所述第一引线、 第二引线。
10、 根据权利要求 1所述的触摸屏, 其特征在于, 所述第二聚合物层 表面上设有一层防止所述导电材料被氧化的保护层。
11、 根据权利要求 8所述的触摸屏, 其特征在于, 所述遮光层为油墨 层或黑色光阻层, 且厚度为 1~10微米。
12、 根据权利要求 1所述的触摸屏, 其特征在于, 所述基片为玻璃。
PCT/CN2013/079161 2013-03-30 2013-07-10 触摸屏 WO2014161243A1 (zh)

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