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Touch screen and manufacturing method thereof

A touch screen and touch electrode technology, which is applied to instruments, electrical digital data processing, digital data processing components, etc., can solve the problems of short circuit and open circuit of touch electrodes.

Active Publication Date: 2014-02-05
BOE TECH GRP CO LTD
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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 touch screen and a manufacturing method thereof, which can solve the problem that short circuits and open circuits are extremely prone to occur during the formation of touch electrodes, thereby improving the yield rate and reducing costs

Method used

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  • Touch screen and manufacturing method thereof

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Embodiment 1

[0044] An embodiment of the present invention provides a touch screen. The touch screen includes: a touch electrode, an insulating layer is provided above or below the layer where the touch electrode is located, or an insulating layer is provided above and below the layer where the touch electrode is located. layer.

[0045] Regardless of the type of touch screen, the touch electrodes generally include two parts: touch driving electrodes (touch scanning lines) and touch sensing electrodes (touch sensing lines). Among them, the touch driving electrode loads the touch scanning signal. When a finger (or other object) approaches or touches, it will affect the sensing signal on the touch sensing electrode near the touch point. By detecting the sensing signal on the touch sensing electrode, the Identify the location of the touch point. In the existing In Cell touch screen, the touch sensing electrodes are arranged on the color filter substrate, and the touch driving electrodes are ...

Embodiment 2

[0056] The embodiment of the present invention also provides a method for manufacturing a touch screen, including: color filter substrate manufacturing process, such as figure 2 As shown, the color filter substrate manufacturing process includes:

[0057] 101. Carry out the process of black matrix on the substrate;

[0058] This step forms a color filter layer, such as image 3 As shown, the color filter layer generally includes a black matrix 121 and a color filter 122 separated by the black matrix 121 . This step is the same as the prior art, and can be formed in any manner known to those skilled in the art.

[0059] In the specific implementation, the black matrix process (BM process) is generally carried out first to form a black matrix; and then the color film color resistance process (RGB process) is performed to form a color film color resistance. Of course, the RGB process can also be placed behind the touch electrode process in step 103, that is, BM process-insula...

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PUM

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Abstract

The embodiment of the invention discloses a touch screen and a manufacturing method thereof and relates to the field of display. The problems of easily emerging short circuit and open circuit in the touch electrode forming process can be solved, the yield is improved, and the cost is reduced. The touch screen comprises touch electrodes, wherein an insulating layer is arranged above or below a layer where the touch electrodes are located, or insulating layers are arranged above and below the layer where the touch electrodes are located. The manufacturing method of the touch screen comprises the steps of performing black matrix process flows on a substrate; forming the insulating layer(s) on the substrate provided with black matrixes; performing a process manufacture procedure which is capable of forming the touch electrodes, on the insulating layer(s); performing protection layer and insulation pad manufacture procedures. The touch screen and the manufacturing method thereof are suitable for improving the manufacturing technique of the touch screen.

Description

technical field [0001] The invention relates to the display field, in particular to a touch screen and a manufacturing method thereof. Background technique [0002] The touch display screen is developing rapidly. The current mainstream products adopt the structural design of the external touch screen (Add on), but the traditional Add on touch screen has a thick overall structure and high cost. (In Cell) LCD screen has become an important development direction in the field of touch display. [0003] In the structure of an existing In Cell touch display screen, the touch electrodes are fabricated on the color filter substrate. During the preparation, the black matrix pattern is first formed using a conventional process, and then the wiring of the touch electrodes is carried out in the shielded area of ​​the black matrix. . Its working process is as follows: the touch scanning signal is loaded on the touch electrode as the touch scanning line, and the touch sensing line coupl...

Claims

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Application Information

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IPC IPC(8): G06F3/041
CPCG06F3/0443G06F2203/04103G06F1/16G06F3/0412G06F2203/04107
Inventor 王灿陈宁郭炜王路
Owner BOE TECH GRP CO LTD