Manufacturing method of ITO film for touch screen

A film manufacturing 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 scratches, low yield, and poor appearance of ITO films, and avoid the occurrence of resistance values. The effect of changing, improving yield, and avoiding deformation

Inactive Publication Date: 2012-05-23
深圳市航泰光电有限公司
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Problems solved by technology

Because this method is in the process of manufacturing the ITO film that is used for the touch screen, the ITO film contacts the cleaning tool related to alkaline liquid medicine and etching equipment, easily causes phenomena such as ITO film scratches, punctures, dirt to exist, easily causes touch etch excessive or Problems such as poor appearance, resulting in low production yield

Method used

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  • Manufacturing method of ITO film for touch screen
  • Manufacturing method of ITO film for touch screen
  • Manufacturing method of ITO film for touch screen

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Embodiment Construction

[0022] In the embodiment of the present invention, the method for manufacturing an ITO thin film used for a touch screen, after the etching treatment, an etching protection layer is provided on the ITO thin film to protect the ITO thin film, which can provide a higher degree of cleanliness when the ITO thin film is cleaned, and at the same time Scratching and oxidation of the ITO film can be avoided, thereby improving the yield of the touch screen.

[0023] Such as figure 1 Shown, the present invention is used for the ITO film manufacturing method of touch screen, and this method comprises the following steps.

[0024] Step S11, setting an etching protection layer on the front of the ITO thin film, the etching protection layer protects the ITO layer on the ITO thin film, and removes the ITO layer not protected by the etching protection layer.

[0025] In the manufacture of ITO films for touch screens, etching is basically carried out on larger-area ITO films according to the ...

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PUM

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Abstract

The invention discloses a manufacturing method of an ITO film for a touch screen, which comprises the following steps: arrangement of etching protection layer: arranging an etching protection layer on the front surface of the ITO film; etching treatment: etching the front surface of the ITO film; cleaning treatment: cleaning the etched ITO film; stripping of the etching protection layer: removingthe etching protection layer of the cleaned ITO film; arrangement of protection layer on front surface: arranging a protection layer in the visible area on the front surface of the ITO film; and printing of silver wires: printing silver wires around the front surface of the ITO film. As the etching protection layer on the front surface of the ITO film protects the ITO film after the etching treatment step, higher cleanness can be provided when the ITO film is cleaned; and simultaneously, the ITO film can be prevented from being scratched or oxidized, thus the yield of the touch screen can be improved.

Description

technical field [0001] The present invention relates to a method of manufacturing a touch screen used in operation in various electronic devices. Background technique [0002] ITO (Indium Tin Oxides, indium tin metal oxide) is an N-type oxide semiconductor-indium tin oxide, and the ITO film is a transparent conductive film formed by setting an indium tin oxide semiconductor on one side of the film. [0003] Existing resistive touch screens are mainly manufactured by wet process etching. First, the required parts are protected with acid-resistant ink, and then the unnecessary ITO film is etched away by acidic chemical potion, and then the surface is etched by alkaline chemical potion. The acid-resistant ink is removed, and finally the surface is cleaned with water, and after drying, the subsequent production process is carried out. In the manufacturing process of the touch screen, the cleanliness of the ITO film is an important parameter, and the ITO film with a low cleanlin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041
Inventor 钟定锋
Owner 深圳市航泰光电有限公司
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