Preparation method of touch screen

Abstract

The invention provides a preparation method of a touch screen. The preparation method comprises the following steps of providing a printing working platform provided with a soft liner; scraping the slurry 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; performing blade coating on the slurry on the soft liner by using a blade coating tool to form a second seed 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 ofthe 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 of the touch screen, extra pre-curing and cleaning steps are not needed, so that the 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 laminate structure 10 including the flexible substrate 101 and the flexible material layer 102 is placed on the upper surface of a printing work platform 12, and the upper surface of the flexible material layer 102 is drip-coated with conductive paste 13 (such as silver paste) and scrap...

AI Technical Summary

Problems solved by technology

[0004] 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 of flexible materials caused by scraping conductive paste on the upper surface of the flexible material layer in the prior art. There is conductive paste residue on the upper surface of the layer, so after the scraping is completed, the upper surface of the flexible material layer needs to be cleaned. After cleaning, the conductive paste can be sintered and solidified to form a conductive layer, so that the entire process steps of the touch screen more complicated and costly to produce

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