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An embedded touch screen and display device

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

Active Publication Date: 2015-12-16
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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  • An embedded touch screen and display device
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  • An embedded touch screen and display device

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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] like 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 each ...

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Abstract

The invention discloses an embedded touch screen and a display device. The common electrode layer connected to the entire surface of an array substrate is divided to form a plurality of touch driving electrodes and common electrodes; The touch sensing electrode; the touch driving electrode is time-divisionally driven to realize the touch function and the display function. Since the pattern of the touch sensing electrodes in the touch screen provided by the embodiment of the present invention is consistent with the outer contour of the common electrodes, and in the hollow grid structure of each touch sensing electrode, the size of each mesh in the central area is larger than that in the edge area. The size of each mesh; this can increase the projected capacitance between the touch sensing electrode and the touch driving electrode at the edge area, which is beneficial to improve the touch sensitivity; while the mesh of the touch sensing electrode at the center area is relatively sparse , can reduce the overall ground capacitance of the touch sensing electrodes, and ensure that the touch sensing electrodes have a 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 screens (TouchScreenPanel) have gradually spread in people's lives. At present, touch screens can be divided into three types according to their composition structures: Add-on Mode Touch Panel, OnCell Touch Panel, and InCell Touch Panel. Among them, the plug-in touch screen is produced separately from the touch screen and the Liquid Crystal Display (LCD), and then bonded together to form a liquid crystal display with touch function. The plug-in touch screen has high production costs, 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 co...

Claims

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Application Information

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Patent Type & Authority Patents(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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