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Touch substrate and display device

A technology for display devices and substrates, which is applied in the fields of instruments, computing, electrical digital data processing, etc., and can solve the problems of artifact display, inability to be felt by users, and inability to release electric charges.

Active Publication Date: 2018-05-25
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the above-mentioned touch driving electrode Tx can also be used as a common electrode (for liquid crystal display); Millisecond touch stage), touch cannot be performed in the display stage, and the displayed content in the touch stage may not be correct, but because the two stages switch quickly, the user cannot feel
[0005] The inventors have found that there are at least the following problems in the prior art: during the touch process, due to frequent changes in capacitance, charge accumulation is likely to occur on each touch driving electrode Tx and / or touch sensing electrode Rx, and these accumulated The charge cannot be released, which can easily lead to insensitivity of touch; and when these electrodes are still in common with the structure used for display, the above-mentioned accumulated charge will also cause poor display such as artifacts in the display stage

Method used

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  • Touch substrate and display device
  • Touch substrate and display device
  • Touch substrate and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] like figure 2 As shown, this embodiment provides a touch substrate, which includes a plurality of first electrodes for touch control, a plurality of first switch units 1 , and a control unit 100 for controlling each of the first switch units 1 , Wherein, any two adjacent first electrodes are connected through the first switch unit 1 , and each of the first electrodes is connected to the control unit 100 .

[0029] Preferably, the touch substrate is further provided with second electrodes intersecting and insulating with the first electrodes, and each of the second electrodes is connected to the control unit 100 .

[0030] The first electrodes on the touch substrate in this embodiment serve as touch driving electrodes Tx, and the second electrodes serve as touch sensing electrodes Rx. When the touch substrate of this embodiment is applied to a touch panel, at this time, a switch signal is input to the first switch unit 1 through its control unit 100 to control each tou...

Embodiment 2

[0036] The principle is the same as that of the touch substrate structure of the first embodiment, such as image 3 As shown, this embodiment provides another touch substrate, and the difference in structure from the embodiment is that each of the first electrodes (touch driving electrodes Tx) in this embodiment includes a plurality of first sub-bases arranged at intervals The electrode Am and the metal wire L used to connect any two adjacent first sub-electrodes Am, wherein the second electrode (touch sensing electrode Rx) and each of the metal wires L are crossed and insulated from each other.

[0037] In this embodiment, the first sub-electrodes Am in the touch driving electrodes Tx are connected to the metal lines L through via holes, and the metal lines L and the touch sensing electrodes Rx form a sensing bridge to form a mutual capacitance. The working principle of the touch substrate of this structure is the same as that of the touch substrate of the first embodiment. ...

Embodiment 3

[0042] This embodiment provides a display device including any of the above touch substrates. The display device can be any product or component with display function, such as liquid crystal display panel, electronic paper, OLED panel, mobile phone, tablet computer, TV, monitor, notebook computer, digital photo frame, navigator, etc.

[0043] Since the display device of this embodiment includes the above-mentioned touch substrate, it can prevent the electric field of the display from interfering with the electric field of the display due to the accumulated charges on a certain touch driving electrode Tx and / or the touch sensing electrodes Rx connected together, reducing or Eliminate problems such as visual artifacts and touch insensitivity caused by charges accumulated on a certain touch drive electrode Tx.

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PUM

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Abstract

The invention provides a touch substrate and a display device, which belong to the technical field of touch display, and can solve the problem that charge accumulation is easily generated on touch drive electrodes and / or touch sensing electrodes in the existing touch process, but the display The problem that the charge accumulated in the stage cannot be released well. The touch substrate of the present invention includes a plurality of first electrodes for touch control, a plurality of first switch units, and a control unit for controlling each first switch unit, wherein any two adjacent first electrodes Each of the first electrodes is connected to the control unit.

Description

technical field [0001] The invention belongs to the technical field of touch display, and in particular relates to a touch substrate and a display device. Background technique [0002] With the development of technology, touch panels with touch control function have gained more and more applications. [0003] Capacitive touch panel is an important form of touch panel, such as figure 1 As shown, the capacitive touch panel includes a plurality of touch driving electrodes Tx parallel to each other and a plurality of touch sensing electrodes Rx parallel to each other, the two electrodes are controlled by the control unit 100, and the plurality of touch sensing electrodes parallel to each other The electrodes Rx are arranged to overlap with the touch drive electrodes Tx, so that a capacitance is formed at the intersection of the two electrodes; as long as the drive signals are passed to the drive electrodes in turn in the form of scanning, the corresponding sensing signals will ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/044
CPCG06F3/0412G06F2203/04107G06F3/0446G06F3/04184G06F3/0418
Inventor 郑丹朱海波路林林段建民金景鲜宫洪友翟雨雷
Owner BOE TECH GRP CO LTD