In-cell touch panel and display device

An embedded touch screen, touch screen technology, applied in static indicators, instruments, computing and other directions, can solve problems affecting touch sensitivity, etc., achieve small signal delay, improve sensitivity, reduce the effect of ground capacitance

Active Publication Date: 2014-08-06
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This structural design will make the mutual capacitance between the touch driving electrodes and the touch sensing electrodes relatively small, and the amount of change caused when the finger touches is relatively small, which in turn affects the sensitivity of the touch.

Method used

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  • In-cell touch panel and display device
  • In-cell touch panel and display device
  • In-cell touch panel and display device

Examples

Experimental program
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Embodiment Construction

[0029] The specific implementation manners of the in-cell touch screen and the display device provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0030] The thickness and shape of each film layer in the drawings do not reflect the real scale, and the purpose is only to illustrate the content of the present invention.

[0031] figure 1 A schematic cross-sectional view of an in-cell touch screen provided by an embodiment of the present invention. An embedded touch screen provided by an embodiment of the present invention, such as figure 1 As shown, an array substrate 100 having a common electrode layer 110, and an opposite substrate 200 opposite to the array substrate 100;

[0032] Such as figure 1 and figure 2 As shown, the common electrode layer 110 of the array substrate 100 is composed of a plurality of touch driving electrodes 111 and a plurality of common electrodes 112 insulated from ea...

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PUM

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Abstract

The invention discloses an in-cell touch panel and a display device. A wholly-connected public electrode layer in an array substrate is segmented to form a plurality of touch driving electrodes and public electrodes; touch sensing electrodes which are respectively of a hollowed-out grid structure are arranged above the public electrodes; time-sharing driving is conducted on the touch driving electrodes, so that the touch function and the display function are achieved. The patterns of the touch sensing electrodes in the in-cell touch panel are consistent with the outer contours of the public electrodes, and in the hollowed-out grid structure of each touch sensing electrode, the sizes of meshes located in the center region are larger than those of meshes located in the edge region; thus, projection capacitance between the touch sensing electrodes located on the edge region and the touch driving electrodes can be increased, and improvement on the touch flexibility is facilitated; the meshes, in the center region, of the touch sensing electrodes are relatively sparse, the overall earth capacitance of the touch sensing electrodes can be reduced, and it is guaranteed that the touch sensing electrodes have small signal delay.

Description

technical field [0001] The invention relates to the field of touch technology, in particular to an embedded touch screen and a display device. Background technique [0002] With the rapid development of display technology, touch screen panels (Touch Screen Panels) have gradually spread in people's lives. Currently, touch panels can be classified into: Add on Mode Touch Panel, On Cell Touch Panel, and InCell Touch Panel according to their structure. Among them, the plug-in touch screen is produced separately from the touch screen and Liquid Crystal Display (LCD), and then bonded together to form a touch-enabled LCD screen. The plug-in touch screen has high production costs and low light transmittance. , The module is thicker and other shortcomings. The embedded touch screen embeds the touch electrodes of the touch screen inside the liquid crystal display, which can reduce the overall thickness of the module and greatly reduce the production cost of the touch screen, and is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
CPCG09G3/20G02F1/13338G06F2203/04103G02F1/136209G06F3/0412G06F3/0418G06F2203/04112G09G2300/0426G06F3/0445G06F3/0446G06F3/041G09G3/3655
Inventor 杨盛际丁小梁董学王海生刘英明赵卫杰
Owner BOE TECH GRP CO LTD
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