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CN104049816A - 一种电容式触摸屏的电极板、触摸屏及触控显示装置 - Google Patents

一种电容式触摸屏的电极板、触摸屏及触控显示装置 Download PDF

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CN104049816A
CN104049816A CN201310084440.5A CN201310084440A CN104049816A CN 104049816 A CN104049816 A CN 104049816A CN 201310084440 A CN201310084440 A CN 201310084440A CN 104049816 A CN104049816 A CN 104049816A
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ito
touch
lead plate
battery lead
screen
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刘红娟
王海生
吴俊纬
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Beijing BOE Optoelectronics Technology Co Ltd
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Beijing BOE Optoelectronics Technology Co Ltd
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Priority to CN201310084440.5A priority Critical patent/CN104049816A/zh
Priority to US14/344,817 priority patent/US20150153874A1/en
Priority to PCT/CN2013/076086 priority patent/WO2014139215A1/zh
Publication of CN104049816A publication Critical patent/CN104049816A/zh
Pending legal-status Critical Current

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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
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
    • 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
    • G06F3/0445—Digitisers, 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
    • 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
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0421—Structural details of the set of electrodes
    • G09G2300/0426—Layout of electrodes and connections

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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)
  • Computer Networks & Wireless Communication (AREA)
  • Position Input By Displaying (AREA)
  • Push-Button Switches (AREA)

Abstract

本发明公开了一种电容式触摸屏的电极板、触摸屏及触控显示装置，该电极板为氧化铟锡（ITO）电极板，所述ITO电极的ITO走线布局结构为至少一条导通通路（Channel）连接至少两条ITO线。触摸屏包括所述电极板，触控显示装置包括所述触摸屏。采用本发明，能提高使用触摸屏的可靠性，即便ITO电极发生断路，也能确保触摸屏的正常使用。

Description

一种电容式触摸屏的电极板、触摸屏及触控显示装置
技术领域
本发明涉及触摸屏设计技术，尤其涉及一种电容式触摸屏的电极板、触摸屏及触控显示装置。
背景技术
随着平板电脑的推广，触摸屏技术发展十分迅速，针对现有的触摸屏设计而言，现有的触摸屏图案（Pattern），即氧化铟锡（ITO）电极板上的ITO电极走线布局结构如图3、图4所示，现有的ITO电极的走线布局结构无论采用何种形状的图案，都是每一条导通通路（Channel）连接一条ITO线（Line），因此，当一条Channel上的ITO电极发生一处断路时，整个触摸屏就无法正常工作了，则使用触摸屏的可靠性大大降低。
发明内容
有鉴于此，本发明的主要目的在于提供一种电容式触摸屏的电极板、触摸屏及触控显示装置，能提高使用触摸屏的可靠性，即便ITO电极发生断路，也能确保触摸屏的正常使用。
为达到上述目的，本发明的技术方案是这样实现的：
一种电容式触摸屏的电极板，所述电极板为ITO电极板，所述ITO电极的ITO走线布局结构为至少一条Channel连接至少两条ITO线。
其中，沿第一方向设置的每至少两条所述ITO线与一条所述Channel相连接。
其中，沿与所述第一方向相交叉的第二方向设置的每至少两条所述ITO线与一条所述Channel相连，其中，沿第一方向设置的连接有不同Channel的ITO线与沿第二方向设置的连接有不同Channel的ITO线彼此相绝缘。
其中，所述ITO电极的走线布局结构为网状图案时，适用于多层ITO结构；所述ITO电极的走线布局结构为菱形图案或条状图案时，适用于单层ITO结构。
其中，每条ITO走线的宽为现有ITO走线的一半面积。
一种触摸屏，所述触摸屏包括上述任一项所述的电极板。
一种触控显示装置，包括上述的所述触摸屏。
本发明电极板为ITO电极板，ITO电极的ITO走线布局结构为至少一条Channel连接至少两条ITO Line。
采用本发明，由于一条Channel连接至少两条ITO Line，至少两条ITO Line能互为保护，因此，采用这种互为保护的ITO Line，能确保整个触摸屏的正常工作，提高使用触摸屏的可靠性。
附图说明
图1为本发明的ITO电极的走线布局结构的一个示意图；
图2为本发明的ITO电极的走线布局结构的另一个示意图；
图3为现有的ITO电极的走线布局结构的一个示意图；
图4为现有的ITO电极的走线布局结构的另一个示意图。
具体实施方式
本发明的基本思想是：设计的新型投射电容式触摸屏的电极板及触摸屏，ITO电极板上的ITO电极走线布局结构为：至少一条Channel连接至少两条ITOLine。
下面结合附图对技术方案的实施作进一步的详细描述。
一种电容式触摸屏的电极板，该电极板为ITO电极板，该ITO电极板上的ITO电极走线布局结构为：至少一条Channel连接至少两条ITO Line。
进一步的，沿第一方向设置的每至少两条所述ITO线与一条所述Channel相连接。
进一步的，沿与所述第一方向相交叉的第二方向设置的每至少两条所述ITO线与一条所述Channel相连，其中，沿第一方向设置的连接有不同Channel的ITO线与沿第二方向设置的连接有不同Channel的ITO线彼此相绝缘。
本发明是采用至少一条Channel连接至少两条ITO Line，而现有技术是采用每条Channel连接一条ITO Line，可见：采用本发明，至少两条ITO Line能互为保护，即：当每条Channel连接的其中一条ITO Line出现问题，使ITO电极发生一处断路时，立即启用Channel连接的另一条ITO Line进行电路导通，也就是说，另一条ITO Line仍导通，则该Channel仍可正常工作，触摸屏也就能正常工作，从而采用这种互为保护的两条I TO Line，能确保整个触摸屏的正常工作，提高使用触摸屏的可靠性。
如图1、图2所示分别为本发明的ITO电极的走线布局结构示意图。其中，图1的ITO电极的走线布局结构为网状图案，对比现有技术图3的结构而言，每条ITO走线的宽约为现有ITO走线的一半面积。图1的该种结构适用于多层ITO结构。图2的ITO电极的走线布局结构为菱形图案，对比现有技术图4的结构而言，每条ITO走线的宽约为现有ITO走线的一半面积。图2的该种结构适用于单层ITO结构，本发明的ITO电极的走线布局结构还可以采用条状图案，也适用于单层ITO结构，不做赘述。
具体的，适用于多层ITO结构的网状结构至少采用双层ITO膜，适用于单层ITO结构的菱形图案和条状图案可以制造成单层ITO膜，但无论哪种类型的结构，都需要以搭桥方式连接Ｘ方向或Y方向的ITO电极，二种类型的结构各有利弊，适用于多层ITO结构的网状结构，多层方式会降低透过率且工艺复杂；适用于单层ITO结构的菱形图案和条状图案，相对来说工艺很简单。
本发明，采用上述两种类型的结构，ITO电极板增大了Ｘ方向ITO电极与Y方向的ITO电极之间的交叠面积和正对面积，即增大了Ｘ方向ITO电极与Y方向的ITO电极之间的互电容。采用本发明，除了提高使用触摸屏的可靠性，还能提高Touch IC的检测灵敏度，因为Touch IC的检测原理是测量用户手指触摸屏幕前、后的电容量的变化量。本发明采用的Pattern结构较常规Pattern交叠面积和正对面积大，即增大了Ｘ方向ITO电极与Y方向的ITO电极之间的互电容，用户手指触摸时吸收电荷量变大，有利于触控点的检出，则提高了TouchIC的检测灵敏度。
一种触摸屏，所述触摸屏包括上述所描述的ITO电极板。本发明的上述ITO电极板适用于各种触摸屏的pattern设计，如适用于SITO、DITO、G1F、G2F等任何触摸屏的结构。
一种触控显示装置，所述触控显示装置包括上述所描述的触摸屏。
以上所述，仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围。

Claims (7)

1.一种电容式触摸屏的电极板，其特征在于，所述电极板为氧化铟锡ITO电极板，所述ITO电极的ITO走线布局结构为至少一条导通通路Channel连接至少两条ITO线。
2.根据权利要求1所述的电极板，其特征在于，沿第一方向设置的每至少两条所述ITO线与一条所述Channel相连接。
3.根据权利要求2所述的电极板，其特征在于，沿与所述第一方向相交叉的第二方向设置的每至少两条所述ITO线与一条所述Channel相连，其中，沿第一方向设置的连接有不同Channel的ITO线与沿第二方向设置的连接有不同Channel的ITO线彼此相绝缘。
4.根据权利要求3所述的电极板，其特征在于，所述ITO电极的走线布局结构为网状图案时，适用于多层ITO结构；所述ITO电极的走线布局结构为菱形图案或条状图案时，适用于单层ITO结构。
5.根据权利要求1所述的电极板，其特征在于，每条ITO走线的宽为现有ITO走线的一半面积。
6.一种触摸屏，其特征在于，所述触摸屏包括权利要求1至5任一项所述的电极板。
7.一种触控显示装置，其特征在于，包括如权利要求6所述的触摸屏。
CN201310084440.5A 2013-03-15 2013-03-15 一种电容式触摸屏的电极板、触摸屏及触控显示装置 Pending CN104049816A (zh)

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CN201310084440.5A CN104049816A (zh) 2013-03-15 2013-03-15 一种电容式触摸屏的电极板、触摸屏及触控显示装置
US14/344,817 US20150153874A1 (en) 2013-03-15 2013-05-22 Electrode plate of capacitive touch panel, touch panel and touch control display apparatus
PCT/CN2013/076086 WO2014139215A1 (zh) 2013-03-15 2013-05-22 电容式触摸屏的电极板、触摸屏及触控显示装置

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Application publication date: 20140917