Metal grid touch screen

Abstract

The invention relates to a metal grid touch screen which structurally comprises a cover plate, an optical adhesive layer and a metal conductive film from top to bottom in sequence, the metal conductive film structurally comprises a silver paste lap joint block, an insulating adhesive layer, a conductive pattern and a base material from top to bottom in sequence, and the conductive pattern comprises a metal grid and a frame area wire. The silver paste lap joint blocks are in lap joint with the metal grid through lap joint points, and the lap joint points are not provided with insulating glue layers. The metal grid touch screen provided by the invention is only provided with one layer of metal grid conductive film, realizes multi-point touch control, is simple in manufacturing process, low in cost, capable of realizing mass production, applied to terminal products of various sizes, high in competitiveness and in line with the national sustainable development strategy.

Description

technical field [0001] The present invention relates to the field of touch display, in particular to a touch screen, in particular to a Metal Mesh touch screen. Background technique [0002] ITO (indium tin oxide) conductive film is an important raw material for making capacitive touch screens. The traditional film structure multi-touch touch screen generally has a GFF structure (Glass-Film-Film, the sensing layer and the driving layer of the touch screen are located in two layers respectively. On the conductive film), GF2 (Glass-Film, the driving layer and the sensing layer of the touch screen are located on the upper and lower sides of the single-layer conductive film) structure, but the GF2 structure manufacturing process is relatively complicated, and the technical threshold is high, so most of the touch terminals on the market The film structure touch screen of the product is generally a GFF structure. [0003] However, with the rapid development of consumer electronic...

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Problems solved by technology

[0002] ITO (indium tin oxide) conductive film is an important raw material for making capacitive touch screens. The traditional film structure multi-touch touch screen generally has a GFF structure (Glass-Film-Film, the sensing layer and the driving layer of the touch screen are located in two layers respectively. On the conductive film), GF2 (Glass-Film, the driving layer and the sensing layer of the touch screen are located on the upper and lower sides of the single-layer conductive film) structure, but the GF2 structure manufacturing process is relatively complicated, and the technical threshold is high, so most of the touch terminals on the market The film structure touch screen of the product is generally GFF structure

[0003] However, with the rapid development of consumer electronics, entertainment games, wearable and foldable products, smart homes, education and teaching and other fields, the demand for touch panels or flexible panels of various sizes is becoming more and more urgent, and the above-mentioned traditional ITO conductive film cannot be realized. For 3D curved surface applications, the conductivity cannot meet the requirements of medium and large size touch panels, and ITO is a scarce resource and is not renewable

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