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A capacitive embedded touch screen and display device

A capacitive touch screen technology, applied in the direction of electrical digital data processing, instruments, data processing input/output process, etc., can solve the problems affecting the touch sensitivity and large mutual capacitance of the capacitive embedded touch screen, so as to improve the touch control Sensitivity, reducing mutual capacitance, and reducing the effect of facing area

Inactive Publication Date: 2017-12-05
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing touch driving electrodes and touch sensing electrodes are usually arranged in the effective display (AA) area. In this arrangement, the touch driving electrodes and the touch sensing electrodes correspond to each other in a large area, and the mutual capacitance between the two Larger, which affects the touch sensitivity of the capacitive in-cell touch screen

Method used

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  • A capacitive embedded touch screen and display device
  • A capacitive embedded touch screen and display device
  • A capacitive embedded touch screen and display device

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Embodiment Construction

[0023] The specific embodiments of the present invention will be described in further detail below in conjunction with the drawings and embodiments. The following examples are used to illustrate the present invention, but not to limit the scope of the present invention.

[0024] The embodiment of the present invention provides a capacitive in-cell touch screen, comprising: an array substrate and a color filter substrate arranged oppositely, a black matrix provided on the color filter substrate or the array substrate, and touch electrodes, wherein The touch electrode includes at least one first electrode, and the orthographic projection of the first electrode pattern on the array substrate is located in the area where the orthographic projection of the black matrix pattern on the array substrate is located.

[0025] The touch electrodes include: touch driving electrodes and touch sensing electrodes, and the touch driving electrodes and / or the touch sensing electrodes are the first e...

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PUM

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Abstract

The invention provides a capacitive type embedded touch screen and a display device. The capacitive type embedded touch screen comprises an array substrate, a color film substrate, a black matrix and a touch control electrode, wherein the array substrate and the color film substrate are oppositely arranged, and the black matrix is arranged on the color film substrate or the array substrate. The touch electrode comprises at least one first electrode body. The figure of the orthographic projection on the array substrate of each first electrode body is located within an area where the figure of the orthographic projection on the array substrate of the black matrix is located. By the adoption of the capacitive type embedded touch screen and the display device, the opposite area between a touch drive electrode and a touch induction electrode, so that the mutual capacitance between the touch drive electrode and the touch induction electrode is reduced, and therefore the touch sensitivity of the capacitive type embedded touch screen is improved.

Description

Technical field [0001] The invention relates to the technical field of touch display, in particular to a capacitive in-cell touch screen and a display device. Background technique [0002] According to the composition structure, touch screens can be divided into: add on mode touch panel, on cell touch panel, and in cell touch panel. Among them, the in-cell touch screen is where the touch electrodes of the touch screen are arranged inside the liquid crystal display, which can reduce the overall thickness of the module, and can greatly reduce the manufacturing cost of the touch screen. Touch screens can be divided into resistive touch screens and capacitive touch screens according to their working principles. Among them, the capacitive touch screen supports multi-touch function, has higher light transmittance and lower overall power consumption, and its contact surface has high hardness and long service life. [0003] At present, the existing capacitive in-cell touch screen is impl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/044
CPCG06F3/0412G06F3/044G06F2203/04111
Inventor 周永山薛静崔玉琳
Owner BOE TECH GRP CO LTD
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