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A touch panel, array substrate and display device

A technology for touch panels and array substrates, applied in the fields of array substrates, display devices, and touch panels, can solve the problems of low sensitivity, signal-to-noise ratio, and high impedance of touch screens, and improve touch sensitivity and signal-to-noise when touching Ratio, high signal-to-noise ratio, and the effect of reducing production costs

Active Publication Date: 2019-12-27
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This design of driving electrodes and sensing electrodes connected in series horizontally or vertically, due to the high impedance of the driving and sensing channels, makes the sensitivity and signal-to-noise ratio of the entire touch screen relatively low.

Method used

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  • A touch panel, array substrate and display device
  • A touch panel, array substrate and display device
  • A touch panel, array substrate and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] This embodiment provides a touch panel, such as figure 1 As shown, the touch electrode unit 1 is included. The touch electrode unit 1 includes a first electrode 11 and a second electrode 12 that are insulated from each other. The second electrode 12 surrounds the outside of the first electrode 11 .

[0044]By making the second electrode 12 in the touch electrode unit 1 surround the outside of the first electrode 11, since the first electrode 11 and the second electrode 12 are independently arranged, when the touch panel is touched, the first electrode 11 and the second The electrodes 12 are respectively touch driven. Compared with the design of the driving electrode string formed by connecting multiple driving electrodes and the sensing electrode string formed by connecting multiple sensing electrodes on the touch panel in the prior art, the touch control is reduced. The first electrode 11 and the second electrode 12 of the touch panel are driven and sensed, thereby imp...

Embodiment 2

[0061] This embodiment provides a touch panel, which is different from Embodiment 1, such as Figure 4 As shown, the first electrode 11 is in the shape of a "cross", the second electrode 12 is in the shape of a ring, and its inner ring is in the shape of a "cross", and its outer ring is in the shape of a rectangle.

[0062] Other structures of the touch panel in this embodiment and the driving of the touch panel are the same as those in Embodiment 1, and will not be repeated here.

[0063] In this embodiment, the shape setting of the first electrode 11 and the second electrode 12 and the surrounding setting of the second electrode 12 on the first electrode 11 can also improve the sensitivity and signal-to-noise ratio of the touch panel.

Embodiment 3

[0065] This embodiment provides a touch panel, which is different from Embodiment 1-2, such as Figure 5 As shown, the first electrode 11 is circular, the second electrode 12 is annular, and its inner ring is circular, and its outer ring is rectangular.

[0066] Other structures of the touch panel in this embodiment and the driving of the touch panel are the same as those in Embodiment 1, and will not be repeated here.

[0067] In this embodiment, the shape setting of the first electrode 11 and the second electrode 12 and the surrounding setting of the second electrode 12 on the first electrode 11 can also improve the sensitivity and signal-to-noise ratio of the touch panel.

[0068] Beneficial effects of Embodiment 1-3: In the touch panel provided by Embodiment 1-3, by making the second electrode in the touch electrode unit surround the outside of the first electrode, since the first electrode and the second electrode are independently arranged , when the touch panel is touc...

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Abstract

The invention provides a touch panel, an array substrate and a display device. The touch panel includes a touch electrode unit, the touch electrode unit includes a first electrode and a second electrode insulated from each other, and the second electrode surrounds the outside of the first electrode. In the touch panel, the second electrode in the touch electrode unit is surrounded on the outside of the first electrode. Since the first electrode and the second electrode are independently arranged, when the touch panel is touched, the first electrode and the second electrode are respectively For touch driving and sensing, compared with the design of driving electrode strings formed by connecting multiple driving electrodes and sensing electrode strings formed by connecting multiple sensing electrodes on the touch panel in the prior art, the touch control is reduced. The driving and sensing impedance of the first electrode and the second electrode of the panel reduces the requirement on the driving and sensing capabilities of the touch driving circuit, thereby improving the sensitivity and signal-to-noise ratio of the touch panel.

Description

technical field [0001] The present invention relates to the technical field of touch display, and in particular, to a touch panel, an array substrate and a display device. Background technique [0002] Touch screens can be divided into resistive, capacitive, surface acoustic wave, infrared, etc. according to their different realization principles. Capacitive touch technology is widely used at present. Capacitive touch technology can be divided into mutual capacitance and self-capacitance. The touch principle of the mutual capacitance touch screen is to apply touch detection to the touch sensing electrode (line) through the touch driving electrode (line). Measure the voltage signal, and determine the occurrence of the touch event and the location where the touch event occurs by receiving the voltage signal fed back by the touch sensing electrode (line). [0003] The current touch driving electrodes and touch sensing electrodes are usually arranged as criss-crossing driving ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041G06F3/044
CPCG06F3/0416G06F3/044G06F3/0446G06F3/0443G06F3/0448G06F2203/04104G06F3/04164G06F3/0412
Inventor 罗兴友李月陈希李彦辰李金钰冯大伟赵宇侯少军王冬吕明阳郭旺
Owner BOE TECH GRP CO LTD