Capacitive touch screen cover plate and production process thereof

Abstract

The invention relates to the technical field of touch screens, in particular to a capacitive touch screen cover plate and a production process thereof. The problem that in an existing cover plate, gaps are caused by ink steps and lead to bubbles is solved. According to the cover plate, an ink frame layer is arranged on a glass substrate, the middle of the ink frame layer is hollow and forms a window region, and a transparent ink layer is arranged in the window region; a glue layer is arranged between the ink frame layer and a conducting layer as well as between the transparent ink layer and the conducting layer, a silver paste layer is formed on the periphery of the bottom face of the conducting layer, an organic transparent insulating material layer is formed on the bottom face of the silver paste layer, a first protective film is arranged between the conducting layer and the silver paste layer, and a second protective film is arranged on the insulating layer. The production process includes the steps that ink, the transparent ink layer and the glue layer are sequentially printed on the glass substrate in a silk screen mode, an ITO film is formed on the glue layer and etched, the protective film is plated on the periphery of the bottom face of the conducting layer, silver paste is printed on the bottom face of the first protective film in a silk screen mode, and an insulating material is printed on the silver paste layer in a silk screen mode; the second protective film is plated on the insulating layer and irradiated with ultraviolet light.

Description

technical field [0001] The invention relates to the technical field of touch screens, in particular to a touch screen cover plate and a production process thereof. Background technique [0002] At present, the mainstream projected capacitive touch screen panels mainly made of glass substrates in the market are composed of touch sensor glass (Touch Sensor) and cover glass (Cover Glass). The main problems of this design are complex process, high cost, too thick components, too heavy weight, and low bonding yield. It has become less and less suitable for the development direction of lighter, thinner and cheaper electronic digital products. In addition, due to the bonding of two pieces of glass, the light transmittance of the entire capacitive touch screen assembly is poor, which cannot meet the requirements of a high-definition liquid crystal display screen, and the outdoor use effect is even worse. Various touch sensor manufacturers have introduced a touch cover glass soluti...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problem that in the cover plate of the existing capacitive touch screen, ink steps will be formed on the glass substrate due to the hollowing out of the middle part of the printing ink layer. Cause the problem of the generation of air bubble, and provide a kind of capacitive touch screen cover plate and its production process