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Array substrate, embedded touch screen and display device

An array substrate and touch electrode technology, which is applied in the direction of instruments, electrical digital data processing, and input/output process of data processing, etc., can solve the problems of poor touch effect and different capacitance of the touch screen

Active Publication Date: 2015-04-29
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention provides an array substrate, an in-cell touch screen and a display device to solve the difference in capacitance between each touch electrode and the corresponding traces of other touch electrodes in the existing self-capacitance touch screen , resulting in the poor touch effect of the touch screen

Method used

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  • Array substrate, embedded touch screen and display device
  • Array substrate, embedded touch screen and display device
  • Array substrate, embedded touch screen and display device

Examples

Experimental program
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Embodiment Construction

[0021] In the following embodiments, for the convenience of description, the traces corresponding to other touch electrodes in the coverage area of ​​a touch electrode of the self-capacitance touch screen are simply referred to as non-connected traces in the coverage area of ​​the touch electrode, and the traces connected to the touch electrode The wiring is referred to as the connecting wiring of the touch electrode for short.

[0022] Please refer to figure 1 , figure 1 It is a schematic plan view of an array substrate of an existing self-capacitance touch screen. The self-capacitance touch screen includes a plurality of touch electrodes 101 arranged in the same layer and independent of each other, and arranged in a different layer from the touch electrodes 101. The touch electrodes 101 are respectively connected to a plurality of wires 102 of a touch detection circuit, and the wires 102 are connected to corresponding touch electrodes 101 through via holes 103 .

[0023] P...

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Abstract

The invention provides an array substrate, an embedded touch screen and a display device. The array substrate comprises a plurality of touch electrodes and a plurality of routings, wherein the touch electrodes are disposed on the same layer and independent of one another, the routings are disposed on a layer different from the layer where the touch electrodes are located and used for allowing each touch electrode to be connected to one touch control detecting circuit, the difference of the overlapping area between each touch electrode and the routings corresponding to other touch electrodes in the coverage of the touch electrode is smaller than a preset threshold. The array substrate has the advantages that by changing the overlapping area between each touch electrode and the routings corresponding to other touch electrodes in the coverage of the touch electrode, the capacitance between each touch electrode and the routings corresponding to other touch electrodes in the coverage of the touch electrode is allowed to be identical or roughly identical, and the touch effect of the capacitive touch screen is increased.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to an array substrate, an embedded touch screen and a display device. Background technique [0002] Currently, existing capacitive in-cell (In cell) touch screens include mutual capacitance touch screens and self-capacitance touch screens. In the self-capacitance touch screen, a layer of touch electrodes can be arranged in the touch screen, and a driving signal can be applied to the touch electrodes. When the finger does not touch the touch screen, the capacitance of the touch electrode is a fixed value a. When the finger touches the touch screen, the capacitance of the touch electrode is the finger capacitance + the original capacitance a. By detecting the change of the capacitance of the touch electrode, the Determine the touch location. Contents of the invention [0003] In view of this, the present invention provides an array substrate, an in-cell touch screen and a...

Claims

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Application Information

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IPC IPC(8): G06F3/044
CPCG06F3/044G06F3/0412G06F3/0443G06F3/041G06F2203/04111
Inventor 赵卫杰董学杨盛际王海生刘红娟刘英明丁小梁李昌峰刘伟
Owner BOE TECH GRP CO LTD
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