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A kind of capacitive touch screen and display device

A technology of capacitive touch screen and shielding electrode, which is applied in the direction of electrical digital data processing, instrumentation, calculation, etc., can solve the problem of reducing the sensitivity of touch sensing, and achieve the effect of improving sensitivity, reducing capacitance, and enhancing accuracy

Active Publication Date: 2016-07-06
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a capacitive touch screen and a display device, which are used to solve the problem in the prior art that the sensitivity of touch sensing is reduced due to the large capacitance formed between the shielding electrode, the touch driving electrode, and the touch sensing electrode.

Method used

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  • A kind of capacitive touch screen and display device
  • A kind of capacitive touch screen and display device
  • A kind of capacitive touch screen and display device

Examples

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example 1

[0029] During specific implementation, in the touch screen provided by the embodiment of the present invention, such as figure 2 As shown, the touch driving electrodes 5 and the touch sensing electrodes 6 can be arranged in the same layer, that is, the patterns of the touch driving electrodes 5 and the touch sensing electrodes 6 can be formed simultaneously through one patterning process. Specifically, each touch driving electrode 5 and each touch sensing electrode 6 arranged on the same layer can be located between the shielding electrode 4 and the opposite substrate 2, that is, the touch driving electrodes 5 and the touch sensing electrodes 6 are formed on the opposite substrate 2 first. Sensing electrodes 6, and then preparing shielding electrodes 4; Of course, each touch driving electrode 5 and each touch sensing electrode 6 arranged on the same layer can also be located on the side of the shielding electrode 4 away from the opposite substrate 2, on the opposite substrate ...

example 2

[0034] In specific implementation, in the touch screen provided by the embodiment of the present invention, since the orthographic projections of the touch driving electrodes 5 and the shielding electrodes 4 on the opposite substrate 2 do not overlap each other, as Figure 4 As shown, the touch driving electrodes 5 and the shielding electrodes 4 can be arranged on the same layer, that is, the patterns of the touch driving electrodes 5 and the shielding electrodes 4 can be simultaneously formed through one patterning process.

[0035] Specifically, such as Figure 4As shown, each touch driving electrode 5 and each shielding electrode 4 arranged on the same layer can be located between the touch sensing electrode 6 and the opposite substrate 2, that is, the touch driving electrode 5 and the shielding electrode are first formed on the opposite substrate 2 4. Then prepare the touch sensing electrode 6; of course, each touch driving electrode 5 and each shielding electrode 4 arrang...

example 3

[0038] In specific implementation, in the touch screen provided by the embodiment of the present invention, since the orthographic projections of the touch sensing electrodes 6 and the shielding electrodes 4 on the opposite substrate 2 do not overlap each other, as Figure 5 As shown, the touch sensing electrodes 6 and the shielding electrodes 4 can be arranged on the same layer, that is, the patterns of the touch sensing electrodes 6 and the shielding electrodes 4 can be simultaneously processed through one patterning process.

[0039] Specifically, such as Figure 5 As shown, each touch sensing electrode 6 and each shielding electrode 4 arranged on the same layer can be located between the touch driving electrode 5 and the opposite substrate 2, that is, the touch sensing electrode 6 and the shielding electrode are first formed on the opposite substrate 2 4. Then prepare the touch driving electrodes 5; of course, the touch sensing electrodes 6 and the shielding electrodes 4 a...

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Abstract

Embodiments of the present invention disclose a capacitive touch panel and a display device. The capacitive touch panel comprises an array substrate, an opposing substrate arranged opposite to the array substrate, and a liquid crystal layer disposed between the opposing substrate and the array substrate, wherein shielding electrodes, touch drive electrodes and touch sensing electrodes are disposed on one side of the opposing substrate away from the liquid crystal layer; the touch drive electrodes, the touch sensing electrodes and the shielding electrodes are insulated from one another; the touch drive electrodes and the touch sensing electrodes are arranged to intersect with each other; and orthographic projections of the shielding electrodes on the opposing substrate fall into gaps of orthographic projections formed by the touch drive electrodes and the touch sensing electrodes arranged to intersect with each other on the opposing substrate. Therefore, the orthographic projections of the shielding electrodes on the opposing substrate are not overlapped with the orthographic projections of the touch drive electrodes or the touch sensing electrodes on the opposing substrate, and hence the structure in which the shielding electrodes are directly opposite to the touch sensing electrodes or the touch drive electrodes can be reduced and the capacitance formed at directly opposite positions can be reduced, and consequently the sensitivity of touch sensing can be improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a capacitive touch screen and a display device. Background technique [0002] With the rapid development of display technology, touch screens (TouchScreenPanel) have gradually spread throughout people's lives. At present, the touch screen can be divided into three types according to the structure: an add-on touch screen (AddonModeTouchPanel), a surface-covering touch screen (OnCellTouchPanel), and an in-cell touch screen (InCellTouchPanel). Among them, the plug-in touch screen is produced separately from a touch screen and a Liquid Crystal Display (LCD), and then bonded together to form a liquid crystal display with a touch function. Covering the surface touch screen is to directly make touch components on the side of the color film substrate of the liquid crystal display facing away from the liquid crystal layer. Compared with the external touch screen covering the surface tou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/044
CPCG06F3/0412G06F3/0443G06F3/0446G06F2203/04111G02F1/13338
Inventor 鲁友强张甜柳皓笛
Owner BOE TECH GRP CO LTD