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A self-capacitance touch display panel, driving method thereof, and touch display device

A self-capacitance touch and display panel technology, which is applied in the fields of electrical digital data processing, instruments, calculations, etc., can solve the problems of pixel aperture ratio and transmittance decrease, and reduce the pixel aperture area and the decrease of light transmittance Effect

Active Publication Date: 2018-09-18
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] To sum up, in the prior art self-capacitance touch display panel, since the touch leads connected to the touch sensor unit are made of specific metal, it is necessary to increase the width of the black matrix to cover the touch leads. Usually results in a large drop in pixel aperture ratio and transmittance

Method used

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  • A self-capacitance touch display panel, driving method thereof, and touch display device
  • A self-capacitance touch display panel, driving method thereof, and touch display device
  • A self-capacitance touch display panel, driving method thereof, and touch display device

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Embodiment Construction

[0023] Embodiments of the present invention provide a self-capacitance touch display panel, a driving method thereof, and a touch display device, which are used to improve the pixel aperture ratio and transmittance of the self-capacitance touch display panel.

[0024] The present invention is realized based on the following considerations:

[0025] In order to solve the problem of decreasing pixel aperture ratio and transmittance, the most direct means is to reduce the width of the black matrix. However, based on the structure of the self-capacitive touch display panel in the prior art, simply reducing the black matrix will result in the exposure of the liquid crystal deflection disorder region, such as figure 2 As shown, if the left side width of the black matrix 221 is simply reduced, the area between the common electrode 213 and the Tx lead 212 will be exposed, and the liquid crystal in the exposed area is due to the edge of the electric field formed by the pixel electrode...

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PUM

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Abstract

Embodiments of the invention disclose a self-capacitance touch display panel, a display device comprising the self-capacitance touch display panel, and a method of driving the self-capacitance touch display panel, so as to increase aperture opening ratio and transmissivity of pixels of the self-capacitance touch display panel. The self-capacitance touch display panel comprises an array substrate and a color filter substrate that are disposed to face one another, the array substrate comprising a common electrode disposed on a base substrate, the common electrode being configured to double as a plurality of touch electrodes, each touch electrode being electrically connected with a touch electrode wire. The touch electrode wire is configured to double as a common electrode wire.

Description

technical field [0001] The present invention relates to the technical field of touch control and display, in particular to a self-capacitance touch display panel, a driving method thereof, and a touch display device. Background technique [0002] At present, in order to realize the thinning and lightening of the touch panel, the research on the integration of the touch panel and the liquid crystal display panel is becoming more and more popular. Among them, an in-cell (In-Cell) touch solution in which a touch panel is embedded in a liquid crystal display panel has attracted widespread attention. In-Cell touch solutions include self-capacitance touch and mutual-capacitance touch. [0003] Self-capacitance touch method: the transparent conductive layer used as the common (VCOM) electrode on the array substrate is divided into several squares as touch sensor units, and one end of a specific metal trace is connected to the touch sensor unit through a via hole, and the other end...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/044
CPCG02F1/13338G06F3/0412G06F3/0443G02F1/134372G02F1/13439G06F3/044
Inventor 李彦辰韩帅王攀华
Owner BOE TECH GRP CO LTD