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A touch display panel, its preparation method, and a touch display device

A touch display panel and display panel technology, which is applied in the fields of instruments, computing, electrical and digital data processing, etc., can solve the problems of damage to the touch function and interference of the sensing electrodes, and achieve the effect of reducing interference and ensuring the touch function.

Active Publication Date: 2021-02-26
GUANGZHOU GOVISIONOX TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present application provide a touch display panel, a manufacturing method thereof, and a touch display device, which are used to solve the problem of problems in the display panel due to the short distance between the display panel and the touch electrodes in the existing touch display panel. The driving signal is easy to interfere with the sensing electrodes in the touch electrodes, resulting in the damage of the touch function

Method used

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  • A touch display panel, its preparation method, and a touch display device
  • A touch display panel, its preparation method, and a touch display device
  • A touch display panel, its preparation method, and a touch display device

Examples

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preparation example Construction

[0049] In view of this, embodiments of the present application provide a touch display panel, a manufacturing method thereof, and a touch display device. The touch display panel includes: a first conductive layer, a second conductive layer, and a display panel, wherein: the first A conductive layer includes a plurality of sensing electrodes, the second conductive layer includes a plurality of driving electrodes, and the second conductive layer is located between the first conductive layer and the display panel; the plurality of sensing electrodes The orthographic projection area on the display panel falls within the orthographic projection area of ​​the plurality of driving electrodes on the display panel.

[0050] In the technical solution provided by the embodiment of the present application, since the driving electrode is located between the sensing electrode and the display panel, and the orthographic projection area of ​​the sensing electrode on the display panel falls withi...

Embodiment 1

[0061] figure 1 It is a side view of a touch display panel provided by an embodiment of the present application. figure 2 for figure 1 The top view of the touch display panel shown in . The touch display panel is as follows.

[0062] figure 1 Among them, the touch display panel may include: a first conductive layer 11, a second conductive layer 12 and a display panel 13, the first conductive layer 11 includes a plurality of sensing electrodes 111, and the second conductive layer 12 includes a plurality of driver The electrode 121 and the second conductive layer 12 are located between the first conductive layer 11 and the display panel 13 . also, figure 1 The shown touch display panel may also include an encapsulation layer 14, an insulating layer 15, and a protective layer 16, wherein the encapsulation layer 14 is located between the second conductive layer 12 and the display panel 13, and may be used for encapsulating the display panel. The thin film encapsulation laye...

Embodiment 2

[0083] Figure 6 It is a schematic flow chart of a method for manufacturing a touch display panel provided in an embodiment of the present application. The preparation method can be used to prepare the touch display panel described in the above-mentioned embodiment 1. The preparation method is as follows.

[0084] Step 601: Form an encapsulation layer on the display panel.

[0085] The material of the encapsulation layer can be a material with a low dielectric constant, and the range of the low dielectric constant can be between 3 and 8. The material with a low dielectric constant can be silicon oxide or silicon oxynitride , can also be other materials with low dielectric constant.

[0086] In this way, the inductive capacitance between the cathode in the display panel and the touch electrode in the touch layer can be reduced. When the touch display panel is touched, the inductive capacitance between the cathode and the sensing electrode and the driving electrode Therefore...

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Abstract

The present application discloses a touch display panel, a preparation method thereof, and a touch display device. The touch display panel includes: a first conductive layer, a second conductive layer, and a display panel, wherein the first conductive layer includes a plurality of sensors electrodes, the second conductive layer includes a plurality of driving electrodes, the second conductive layer is located between the first conductive layer and the display panel; the plurality of sensing electrodes are on the positive side of the display panel The projection area falls within the orthographic projection area of ​​the plurality of driving electrodes on the display panel. In this way, since the driving electrodes are located between the sensing electrodes and the display panel, and the orthographic projection area of ​​the sensing electrodes on the display panel falls within the orthographic projection area of ​​the driving electrodes on the display panel, the driving electrodes can effectively block or absorb the generation of driving signals. When the touch display panel is touched, the interference of the driving signal to the sensing electrode can be effectively reduced, thereby ensuring the touch function of the touch display panel.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a touch display panel, a manufacturing method thereof, and a touch display device. Background technique [0002] The touch display panel integrates a touch screen and a flat display panel (hereinafter referred to as the display panel), so that the 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 thinner touch display panels, the thickness of touch display panels is getting thinner, and the distance between the display panel and touch electrodes in touch display panels is getting closer and closer , especially the touch display panel in which the touch screen is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041
CPCG06F3/0416G06F2203/04103
Inventor 王冰张亚朋张成明
Owner GUANGZHOU GOVISIONOX TECH CO LTD