A kind of gravure pad printing method to make nano-silver wire transparent conductive film conducting pattern method

Abstract

The invention discloses a method for making a conducting pattern of a nano-silver wire transparent conductive film by a gravure pad printing method, comprising the following steps: 1) making a plate, making a pattern gravure plate according to the conductive wire pattern, and attaching the pattern gravure plate to the gravure plate of a gravure pad printing device on the cylinder; 2) alignment, aligning the workpiece to be printed with the pad printing cylinder of the gravure pad printing equipment, so that the conductive pattern can be accurately printed to the exact position of the workpiece to be printed; 3) printing, using the gravure pad printing equipment to place the nano silver Line ink printing forms nano-silver wire pattern on the workpiece to be printed; 4) heat treatment, utilizes oven and strong light irradiation heating, completes the fusion welding of the nano-silver wire on the surface, the present invention saves etching process, does not need to redundant Nano-silver wire is etched and removed, the process is simple and effective, and the yield is high; a large amount of waste of nano-silver wire material is avoided, and the amount of material used is low; the production efficiency is high, and the production cost is greatly reduced.

Description

technical field [0001] The invention belongs to the field of making nano-silver wire conductive film, and more specifically relates to a method for making conductive pattern of nano-silver wire transparent conductive film by gravure pad printing. Background technique [0002] With the continuous development of portable, miniaturized and flexible electronic devices, indium tin oxide (ITO), a traditional transparent conductive material with superior performance, is increasingly unable to meet the needs of applications. Due to the lack of ductility and high impedance of the traditional ITO transparent conductive film, it is not suitable for foldable touch screens and medium and large touch screens, and the unit price of indium is high and there are few places to produce it. [0003] With the development of 5G communication and artificial intelligence, more and more display screens and touch screens are used inside smart cars, and most of them surround the driver's seat with a c...

AI Technical Summary

Problems solved by technology

However, the production efficiency of this method is low, the cost is high, and the precision is poor. As a result, the silver nano wire conductive film has not been widely used at present.

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