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Method for manufacturing touch screen

A manufacturing method and touch screen technology, applied in the input/output process of data processing, instruments, electrical digital data processing and other directions, can solve the problems of low chemical etching process efficiency, industrial pollution, large waste of raw materials, etc., and shorten the output time. , the effect of saving waste and improving output efficiency

Inactive Publication Date: 2016-06-15
CHONGQING SONGLU TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a method for manufacturing a touch screen, which is used to solve the problems of low efficiency of the existing chemical etching process, large waste of raw materials, and easy industrial pollution.

Method used

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  • Method for manufacturing touch screen

Examples

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Embodiment 1

[0020] G+F touch screen (single-touch touch screen) production method: use ITO film or other conductive material film (such as AZO transparent conductive film) for silk screen printing silver paste process, and then put it into the photolithography machine with set parameters (such as Laser engraving machine, which is characterized by fast speed, high accuracy, and low cost), carries out laser etching, and interrupts the conductive layer with design drawings, so as to divide each capacitor block and obtain the required functional pattern. The engraving needs to be carried out on the ITO conductive film and the silver paste line. Therefore, we need to set different laser intensities for laser etching to ensure that the ITO conductive film will not be formed due to excessive laser power and low silver paste power. For the problem of short circuit, after laser etching, the photoetched ITO conductive film 10 is obtained, and the photoetched ITO conductive film 10 and FPC20 are hot-...

Embodiment 2

[0022] G+F+F touch screen (multi-touch touch screen) production method: After two ITO conductive films are screen-printed with silver paste, the upper and lower line photolithography is performed, and then the two ITO conductive films are bonded with OCA optical glue to obtain The photolithographically good ITO conductive film, the following procedures are the same as in Example 1.

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Abstract

The invention provides a method for manufacturing a touch screen. The method includes the following steps: (1) performing silkscreen printing with a silver paste on a conductive film, placing the conductive film to a mask aligner with set parameters for laser etching, breaking wires on a conductive surface, and obtaining the laser-etched conductive film; (2) performing hot-pressing on FPC with adhesives to the laser-etched conductive film, and obtaining a semi-finished functional chip; (3) and bonding the semi-finished functional chip and a protective panel, and obtaining a finished touch screen. The method of the invention adopts laser etching. Compared with conventional etching methods, the method does not require a coating etching paste, has a higher efficiency, shortens manufacturing time of touch screens, and has a higher efficiency in manufacturing touch screens. At the same time, the essence of the method is physical etching, which reduces raw material waste without causing unnecessary industrial pollution, and meets environmental requirements.

Description

technical field [0001] The invention belongs to the technical field of mobile phone touch screens, in particular to a manufacturing method of a touch screen. Background technique [0002] Usually, the production process of touch screen needs to screen-print silver paste on the conductive film, and then perform etching to interrupt the circuit on the conductive surface to obtain the functional pattern we need. However, the previous sensor production technology used etching paste and acid-resistant Alkali etching, this chemical etching method needs to apply etching paste, so the efficiency is low, which greatly affects the industrial output efficiency of the touch screen. At the same time, this chemical etching method wastes a lot of raw materials, and it is easy to cause industrial pollution, which does not meet environmental requirements. . Contents of the invention [0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present inven...

Claims

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Application Information

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IPC IPC(8): G06F3/041G06F3/044
CPCG06F3/0412G06F3/044G06F2203/04103G06F2203/04112
Inventor 陆永华兰凤亭张政
Owner CHONGQING SONGLU TECH CO LTD
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