Preparation method of touch screen

Abstract

The invention provides a preparation method of a touch screen. The preparation method comprises the following steps: providing a printing working platform provided with a soft liner; preparing seed ink; scraping the seed ink on the soft liner by using a scraping tool in each first groove structure to form a first seed layer; forming a first metal line in the first groove structure based on the first seed layer; forming a first transparent optical adhesive layer on the upper surface of the driving layer structure; scraping the seed ink on the soft liner by using a scraping tool to form a secondseed layer in each second groove structure; forming a second metal line in each second groove structure based on the second seed layer; pasting the induction layer structure on the upper surface of the first transparent optical adhesive layer; forming a second transparent optical adhesive layer on the upper surface of the sensing layer structure; and providing a transparent cover layer, and attaching the transparent cover layer to the upper surface of the second transparent optical adhesive layer. According to the preparation method, extra pre-curing and cleaning steps are not needed, so thatthe technological process is simplified, and the production cost is reduced.

Description

technical field [0001] The invention belongs to the field of touch technology, in particular to a method for preparing a touch screen. Background technique [0002] The touch screen generally has a metal grid to form a channel and has functions. Metal grids are mostly regular graphics, such as rectangles, rhombuses or hexagons, etc. The metal grid in the existing touch screen is generally obtained by forming a conductive layer in the groove structure of the flexible material layer, and the obtained metal grid is connected to the processing chip through a flexible circuit board (FPC). In the prior art, methods for forming a conductive layer such as figure 1 As shown, generally, the flexible laminated structure 10 including the flexible substrate 101 and the flexible material layer 102 is placed on the upper surface of a printing platform 12, and the silver paste 13 is dripped on the upper surface of the flexible material layer 102 using a scraper 14 Scraping the silver pas...

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a method for preparing a touch screen, which is used to solve the problem that the flexible material layer may be caused by scraping silver paste on the upper surface of the flexible material layer in the prior art. There is silver paste residue on the upper surface, so the upper surface of the flexible material layer needs to be cleaned after the scraping is completed, and the silver paste can be sintered and solidified to form a conductive layer after cleaning, which makes the whole process steps more complicated and the production cost is higher problems, as well as the use of silver paste to make conductive layers, because silver paste is a noble metal, which leads to the problem of high cost

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