Method for fabricating white OGS touch screen

A production method and touch screen technology, which are applied in the input/output process of data processing, instruments, electrical digital data processing, etc., can solve the problems of yellowing ink color, difficulty in mass production, and low production yield of white OGS touch screen. , to reduce the number of times of exposure to high temperature and improve the production yield.

Inactive Publication Date: 2015-08-26
(CNBM) BENGBU DESIGN & RES INST FOR GLASS IND CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most OGS touch screens on the market are black touch screens. For white OGS touch screens, the white ink will turn yellow under high temp

Method used

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  • Method for fabricating white OGS touch screen

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Example Embodiment

[0018] like figure 1 As shown, the present invention provides a method for making a white OGS touch screen, comprising the following steps:

[0019] a) The glass substrate 1 is subjected to coating and shadow removal treatment to enhance the transmittance of the glass substrate. The glass substrate 1 can be made of 0.7mm Asahi glass second-generation glass;

[0020] b) Screen printing the first white ink layer 2 on the frame area of ​​the lower surface of the glass substrate 1, the wire mesh used in the screen printing in this step is ≥420 mesh, and the white ink adopts the screen printing ink that can withstand temperatures above 230°C;

[0021] c) screen printing the second white ink layer 3 on the lower surface of the first white ink layer 2, the wire mesh used in the screen printing in this step is ≥420 mesh, and the white ink adopts the screen printing ink that can withstand temperatures above 230°C; The inner edge of the white ink layer 3 is expanded by 0.5mm relative t...

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PUM

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Abstract

The invention discloses a method for fabricating a white OGS (One Glass Solution) touch screen, and the fabricating method comprises the following steps of a) performing coating and shadow elimination to a glass substrate; b) silk-screen printing a first white ink layer in the frame region of the lower surface of the glass substrate; a steel wire gauze adopted during silk-screen printing is no less than 420 meshes and the printed white ink adopts screen printing ink which bears the temperature more than 230 degrees centigrade; c) silk-screen printing a second white ink layer on the lower surface of the first white oil ink layer; the steel wire gauze adopted during silk-screen printing is no less than 420 meshes and the printed white ink adopts screen printing ink which bears the temperature more than 230 degrees centigrade; d) fabricating an ITO layer in a transparent region at the bottom of the glass substrate through a yellow light process; the ITO layer is in a single-layer multiple-point caterpillar structure; e) silk-screen printing a gray oil ink layer on the lower surface of the second white oil ink layer; printing the white oil ink layer through the steel wire gauze with the high mesh number, thereby improving uniformity of the white oil ink layer and reducing thickness of the white oil ink layer; the white oil ink layer cannot become yellow by adopting heat-resistant screen printing ink after high-temperature processing, and thus the yield rate of the white OGS touch screen is increased.

Description

technical field [0001] The invention relates to the technical field of touch screens, in particular to a method for manufacturing a white OGS touch screen. Background technique [0002] With the development of science and technology, smart electronic devices such as mobile phones and tablet computers can be seen everywhere in our lives. Most of these devices use touch screens as tools for collecting and identifying information. Touch screens have gained more and more popularity due to their thinness and simple operation. more and more widely used. [0003] Among them, capacitive touch screens are the most commonly used, and there are two mainstream capacitive screens: glass-based capacitive touch screens and film-based capacitive touch screens. Glass-based capacitive touch screens occupy a relatively high proportion in the capacitive touch screen market due to their low cost and short production cycle. [0004] The OGS (One Glass Solution) structure touch screen realizes t...

Claims

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Application Information

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IPC IPC(8): G06F3/044
Inventor 彭寿茆令文鲍兆臣张少波田明明
Owner (CNBM) BENGBU DESIGN & RES INST FOR GLASS IND CO LTD
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