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A touch display panel and a touch display device

A touch display panel and touch electrode technology, which is applied in the fields of instruments, computing, electrical and digital data processing, etc., can solve the problems that the cathode interferes greatly with the touch electrode and affects the touch function of the touch electrode, and improves the touch control function. Sensitivity, reducing the relative area, reducing the effect of inductive capacitance

Active Publication Date: 2020-07-31
YUNGU GUAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application provides a touch display panel and a touch display device, which are used to solve the interference of the cathode on the touch electrode due to the short distance between the cathode and the touch electrode in the existing touch display panel. Larger, affecting the touch function of the touch electrode

Method used

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  • A touch display panel and a touch display device
  • A touch display panel and a touch display device
  • A touch display panel and a touch display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] figure 2 It is a schematic structural diagram of a touch display panel provided by an embodiment of the present application. The touch display panel is as follows.

[0049] figure 2 The shown touch display panel may include a sensing electrode layer 21 , a driving electrode layer 22 and a cathode layer 23 , and the upper and lower positions of the three may be: the sensing electrode layer 21 , the driving electrode layer 22 and the cathode layer 23 . Wherein, the sensing electrode layer 21 includes a plurality of sensing electrodes 211, and the driving electrode layer includes a plurality of driving electrodes 22 ( figure 2 not specifically shown in ), the cathode layer 23 can be regarded as the cathode of the touch display panel.

[0050] exist figure 2 , the cathode may include a plurality of hollowed out regions 231, and the number of hollowed out regions 231 is the same as the number of sensing electrodes 211 ( figure 2 7 sensing electrodes 211 and 7 hollo...

Embodiment 2

[0059] image 3 It is a schematic structural diagram of another touch display panel provided by the embodiment of the present application. The touch display panel is as follows.

[0060] image 3 The shown touch display panel includes a touch electrode layer 31 and a cathode layer 32, the touch electrode layer 31 may be located above the cathode layer 32, and the touch electrode layer 31 may include a plurality of sensing electrodes 311 and a plurality of driving electrodes 312 , the cathode layer 32 can be regarded as the cathode of the touch display panel.

[0061] image 3 Among them, the plurality of sensing electrodes 311 and the plurality of driving electrodes 312 are located on the same conductive layer 31 (ie, the touch electrode layer 31), and cross each other, wherein the plurality of sensing electrodes 311 can be along the first direction ( image 3 In the X direction), a plurality of driving electrodes 312 can be along the second direction ( image 3 Y directi...

Embodiment 3

[0132] The embodiment of the present application also provides a touch display device, the touch display device may include the touch display panel described in the above embodiment 1, or may include the touch display panel described in the above embodiment 2 .

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Abstract

The present application discloses a touch display panel and a touch display device. The touch display panel includes: a cathode and a plurality of touch electrodes, wherein the cathode includes at least one hollowed out area, and each of the hollowed out areas The positions respectively correspond to the positions of one of the touch electrodes, so as to reduce the relative area between the cathode and the touch electrodes. In the embodiment of the present application, by hollowing out the area corresponding to the touch electrodes in the cathode of the touch display panel, the relative area between the cathode and the touch electrodes can be reduced, thereby reducing the sensing capacitance between the cathode and the touch electrodes. In this way, when the touch display panel is touched, since the inductive capacitance between the cathode and the touch electrode is reduced, the interference of the cathode to the touch electrode can be reduced. Compared with the prior art, the interference to the touch electrode can be reduced. The touch function of the touch display panel is damaged, and the touch sensitivity of the touch display panel is improved.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a touch display panel and a touch display device. Background technique [0002] The touch display panel integrates a touch screen and a flat display panel so that the flat display panel has a touch function. Generally, the touch display panel can provide a human-computer interaction interface, and allow input through fingers, stylus, etc., which is more direct and humanized in use. With the development of display technology, touch display panels are increasingly used in various display devices. [0003] With the development of the thinning of the touch display panel, the thickness of the touch display panel becomes thinner and thinner, and the distance between the cathode and the touch electrode in the touch display panel becomes closer and closer. The distance between the cathode and the touch electrode is even less than 10 μm. [0004] In this way, when the touch ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041G06F3/044
CPCG06F3/0418G06F3/044G06F3/0445G06F3/0446G06F3/0412G06F3/0443G06F2203/04111G06F3/0448G06F2203/04103
Inventor 刘甲定王冰马浚原张亚朋
Owner YUNGU GUAN TECH CO LTD