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An array substrate and a capacitive embedded touch screen with the array substrate

An array substrate and touch screen technology, applied in electrical digital data processing, data processing input/output process, optics, etc., can solve the problems of touch drive electrode signal delay, large resistance value of transparent metal oxide electrodes, etc. Achieve the effect of reducing signal delay, improving touch performance and reducing resistance

Active Publication Date: 2018-01-02
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the above-mentioned in-cell touch screen, since the common electrodes are multiplexed as touch driving electrodes, and the common electrodes are usually transparent metal oxide electrodes, such as ITO or IZO (indium zinc oxide), the resistance value of the transparent metal oxide electrodes is generally Relatively large, which will cause a delay in the signal in the touch drive electrode

Method used

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  • An array substrate and a capacitive embedded touch screen with the array substrate
  • An array substrate and a capacitive embedded touch screen with the array substrate
  • An array substrate and a capacitive embedded touch screen with the array substrate

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Embodiment 1

[0029] The array substrate of the embodiment of the present invention includes a common electrode layer, please refer to figure 2 , figure 2 It is a schematic diagram of the structure of the common electrode layer in the array substrate according to the first embodiment of the present invention. The common electrode layer is divided into a plurality of touch driving electrodes 5031 and a plurality of common electrodes 5032 arranged at intervals. The touch driving electrodes 5031 Used for time-sharing loading of common electrode signals and touch scan signals. Specifically, in the display phase, touch drive electrodes 5031 serve as common electrodes to load common electrode signals. In the touch phase, touch drive electrodes 5031 load touch scan signals , Time-sharing drive can reduce the mutual interference between display and touch, and improve picture quality and touch accuracy.

[0030] In order to reduce the resistance of the touch drive electrodes, in the embodiment of the ...

Embodiment 2

[0034] The array substrate of the embodiment of the present invention includes a common electrode layer, please refer to image 3 , image 3 It is a schematic diagram of the structure of the common electrode layer in the array substrate of the second embodiment of the present invention. The difference between the common electrode layer in this embodiment and the common electrode layer in the first embodiment is: the structure of the common electrode 5032 and the touch drive electrode 5031 The structure is the same, and in the first embodiment, the common electrode 5032 is a strip-shaped electrode.

[0035] In this embodiment, each common electrode 5032 includes a plurality of sub-common electrodes 50321 spaced apart along the extension direction of the common electrode 5032, and metal wiring 50322 for connecting adjacent sub-common electrodes 50321, wherein The size of the sub common electrode 50321 is the same as the size of the sub touch driving electrode 50311.

[0036] Since th...

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Abstract

The present invention provides an array substrate and a capacitive in-cell touch screen having the array substrate. The array substrate includes a common electrode layer, and the common electrode layer is divided into a plurality of touch driving electrodes and a plurality of common electrodes arranged at intervals. The touch driving electrodes are used to load common electrode signals and touch scanning signals in a time-division manner, and each of the touch driving electrodes includes: a plurality of sub-touch driving electrodes arranged at intervals along the extending direction of the touch driving electrodes, and metal wires for connecting adjacent sub-touch driving electrodes. The solution of the present invention can effectively reduce the resistance of the touch driving electrodes, thereby reducing the signal delay in the touch driving electrodes and improving the touch performance of the embedded touch screen including the array substrate.

Description

Technical field [0001] The present invention relates to the field of display technology, in particular to an array substrate and a capacitive in-cell touch screen with the array substrate. Background technique [0002] Capacitive in-cell touch (In Cell Touch) technology, that is, two layers of ITO (indium tin oxide) electrodes intersecting on opposite sides of each other are made in the liquid crystal panel. The two layers of electrodes are used as the touch drive electrodes Tx and touch screens of the touch screen. The sensing electrode Rx is controlled to form a sensing capacitor at the intersection of the two ITO electrodes. The working process of the capacitive in-cell touch screen is: when the touch scanning signal is applied to the touch driving electrode Tx, the voltage signal coupled by the touch sensing electrode Rx through the inductive capacitance is detected. During this process, if a human body touches the touch screen, the human body The electric field will act on ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/044
CPCG02F1/134309G02F1/13338G02F1/13439G02F1/136286G06F3/0412G06F3/0443G06F3/0446G06F3/04166G02F1/134318G02F1/136295G06F3/041G02F1/133514G02F1/134336G02F1/1368G02F2201/121
Inventor 谢振宇
Owner BOE TECH GRP CO LTD