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Capacitive touch screen manufacturing method

A technology of capacitive touch screen and manufacturing method, applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc., can solve the problems of many process steps, high production cost, production yield limit, etc., and meet the process operation requirements Convenience, product cost reduction, good promotion and popularization effect

Inactive Publication Date: 2014-06-25
苏州市健邦触摸屏技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 1. The process is complex and has high requirements on the production environment;
[0008] 2. The process has very high requirements on equipment, and the production cost is relatively high;
[0009] 3. There are many process steps, which greatly limit the production yield;
[0010] 4. Can not do high-precision circuit printing

Method used

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  • Capacitive touch screen manufacturing method
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  • Capacitive touch screen manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The silver paste on GLASS or FILM is burned and removed by laser light, so as to realize the molding of the circuit. The process flow is as follows: Figure 5 with Image 6 shown.

[0024] First, the conductive ink is coated on the screen, and a large piece of ink is printed on the ITO GLASS or ITO FILM from left to right by a scraper, and then baked and dried, and then the silver paste is burnt with laser light to produce the required circuit. The drying process here may also adopt natural drying, hot air drying and the like.

[0025] Compared with prior art, the beneficial effect of the present invention is:

[0026] 1. Laser forming lines have obvious advantages over screen printing in terms of line width requirements.

[0027] 2. Laser etching has obvious advantages over molybdenum aluminum molybdenum or screen printing in terms of environment, equipment and site requirements.

[0028] 3. Laser etching is significantly higher than screen printing in terms of ...

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PUM

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Abstract

The invention provides a capacitive touch screen manufacturing method. The capacitive touch screen manufacturing method includes applying conductive ink on a screen printing plate, printing a large area of ink onto ITO GLASS or ITO FILM, baking to dry and burning silver paste by laser to generate required circuits. The capacitive touch screen manufacturing method has the advantages that manufactured products have remarkable advantages in the requirement for circuit width; the capacitive touch screen manufacturing method has obvious advantages in the requirements for the environment, equipment and sites as compared with molybdenum-aluminum-molybdenum or screen printing, is higher in etching yield than screen printing and is more convenient than screen printing in the requirement for technological operation.

Description

technical field [0001] The invention relates to the field of touch screens, in particular to a capacitive touch screen. Background technique [0002] Capacitive touch screen can be used for man-machine dialogue through finger touch operation. It is generally used in touch screen mobile phones, touch screen PDAs, tablet computers, car navigators and other industrial control equipment. [0003] At present, all the GLASS SENSOR parts of projected capacitive touch screens on the market are made of molybdenum-aluminum-molybdenum or silver paste. The process flow is as follows: [0004] Method 1: Coat the surface of molybdenum-aluminum-molybdenum-molybdenum ITO GLASS with photoresist, and then cover it with film. After exposure and development, remove the photoresist that was covered by the film and unexposed parts, and then back-plate molybdenum-aluminum-molybdenum. After cleaning , leaving the required lines on the surface of ITO GLASS. Such as figure 1 with figure 2 shown....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044
Inventor 刘振国
Owner 苏州市健邦触摸屏技术有限公司
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