Preparation method of touch sensor and touch sensor

Abstract

The present invention provides a touch sensor preparation method and a touch sensor. The preparation method comprises the following steps: S1: providing a substrate with a conductive film, coating etching paste on a window region of the substrate to form a conductive pattern, and coating etching paste to a wiring region of the substrate to form electrode lead grooves for forming the electrode lead wire in the wiring region; S2: filling the electrode lead grooves with conductive ink; S3: curing the substrate; and S4: washing to remove the etching paste. According to the method provided by the present invention, mutual fusion of the conductive ink between the adjacent electrode lead grooves can be blocked, the problem that the line is easy to be fused in the ink jet printing technology can be solved, and the yield of the prepared touch sensor can be increased; and on the other hand, the problems of shrinkage of the conductive ink, and the like in the ink jet printing technology can be solved, the curing of the conductive ink can be facilitated, and the electrode lead wire formed by the cured conductive ink has good flatness and good appearance.

Description

technical field [0001] The present invention relates to the field of touch control, in particular to a method for producing a touch sensor with high efficiency and high yield and the touch sensor. Background technique [0002] At present, the main manufacturing processes of touch sensors in the fields of touch screens, photoelectric displays, etc. are photolithography, screen printing and laser laser processes. Yellow light and silk printing processes require many process steps, small process window, difficult production, and serious pollution. The steps of laser process are relatively simplified, and the degree of pollution is small, but the efficiency is low. [0003] Inkjet printing technology has high efficiency and low pollution, and can form large-size or flexible products in one piece. Therefore, the application of inkjet printing technology in the preparation of touch sensors has attracted much attention. However, inkjet printing technology can be used under high pre...

AI Technical Summary

Problems solved by technology

Yellow light and silk printing processes require many process steps, small process window, difficult production, and serious pollution. The steps of laser process are relatively simplified, and the degree of pollution is small, but the efficiency is low

[0003] Inkjet printing technology has high efficiency and low pollution, and can form large-size or flexible products in one piece. Therefore, the application of inkjet printing technology in the preparation of touch sensors has attracted much attention. The defects of the finished product will be magnified, and the yield rate cannot be greatly improved

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