Touch substrate, touch display panel and touch display device

A substrate and touch technology, applied in instruments, computing, electrical digital data processing, etc., can solve problems such as insensitivity of touch, reduction of mutual capacitance value, and reduction of touch electrode induction, so as to improve touch sensitivity and increase The effect of mutual capacitance

Pending Publication Date: 2021-07-16
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Based on this, when a finger touches the display panel, the influence of parasitic capacitance reduces the sensing capacity of the touch electrodes, thereby reducing the mutual capacitance between the sensing electrodes and the driving electrodes, which easily causes the problem of insensitivity to touch

Method used

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  • Touch substrate, touch display panel and touch display device
  • Touch substrate, touch display panel and touch display device
  • Touch substrate, touch display panel and touch display device

Examples

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Embodiment Construction

[0051] The present application is described in detail below, and examples of embodiments of the present application are shown in the drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. Also, detailed descriptions of known technologies will be omitted if they are not necessary to illustrate the features of the present application. The embodiments described below by referring to the figures are exemplary only for explaining the present application, and are not construed as limiting the present application.

[0052] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which this application belongs. It should also be understood that terms, such as those defined in commonly used dictionaries, should be u...

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Abstract

The embodiment of the invention provides a touch substrate, a touch display panel and a touch display device. The touch substrate comprises a substrate body, a first electrode layer, a second electrode layer and an insulating layer, wherein the first electrode layer and the second electrode layer are located on one side of the substrate body, and the insulating layer is located between the two electrode layers. The first electrode layer comprises a plurality of first touch electrodes and a plurality of second touch electrodes insulated from the first touch electrodes, and each first touch electrode comprises a plurality of first touch sub-electrodes; the second electrode layer comprises a plurality of bridge electrodes and a plurality of auxiliary electrodes, the adjacent first touch sub-electrodes in the same first touch electrode are electrically connected through the bridge electrodes, and the auxiliary electrodes are electrically connected with the first touch electrodes and form first auxiliary capacitors with the second touch electrodes; and / or the auxiliary electrode is electrically connected with the second touch electrode and forms a second auxiliary capacitor with the first touch electrode. According to the embodiment, the total capacitance between the first touch electrodes and the second touch electrodes is increased, so that the influence of stray capacitance on the touch sensitivity is reduced, and the touch sensitivity is improved.

Description

technical field [0001] The present application relates to the field of touch technology, specifically, the present application relates to a touch substrate, a touch display panel and a touch display device. Background technique [0002] Capacitive touch sensing technology is a relatively common way to realize touch function in existing display panels, but in large-size OLED (Organic Light-Emitting Diode, Organic Light-Emitting Diode) display panels, the thickness of the packaging film is relatively low, A large parasitic capacitance is formed between the touch electrode and the cathode layer under the packaging film. Based on this, when a finger touches the display panel, the influence of the parasitic capacitance reduces the sensing capacity of the touch electrodes, thereby reducing the mutual capacitance between the sensing electrodes and the driving electrodes, which easily causes the problem of insensitivity to touch. Contents of the invention [0003] Aiming at the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044G06F3/041
CPCG06F3/0412G06F2203/04112G06F3/0445G06F3/0446
Inventor 袁长龙
Owner BOE TECH GRP CO LTD
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