Monolithic ogs touch screen and method of making the same

Abstract

The invention discloses a one-chip OGS (One Glass Solution) touch screen and a manufacture method thereof. Compared with a traditional OGS touch screen manufacture technology, the manufacture method of the one-chip OGS touch screen is characterized in that the upper surface and the lower surface of large OGS glass with an ITO (Indium Tin Oxide) conducting film and a sensor are printed with anti-corrosion ink and are closely attached with anti-corrosion protective films, and then, the large OGS glass is subjected to chemical etching, accurate carving and secondary chemically-enhanced processing; therefore, the large OGS glass is always protected by the anti-corrosion protective film in the subsequent working procedures of chemical etching, accurate carving and secondary chemically-enhanced processing, a phenomenon that the surface of the one-chip OGS glass is scratched or polluted in the working procedure of chemical etching is favorably avoided, and accurate carving time and cleaning time required for subsequent working procedures are greatly shortened; in addition, external physical impact borne on the single-chip OGS glass in the working procedure of accurate carving is reduced, a phenomenon that the single-chip OGS glass is subjected to lateral erosion in the working procedure of the secondary chemically-enhanced processing is avoided, the original strength of the single-chip OGS glass is favorably kept, and the quality and the performance of the single-chip OGS glass are guaranteed to be stable.

Description

technical field [0001] The invention relates to the technical field of OGS touch screen manufacturing process, and specifically provides a single-chip OGS touch screen and a manufacturing method thereof. Background technique [0002] The projected capacitive touch panel with multi-touch application as the appeal mainly has two technologies: film type and glass type. The Apple camp uses glass projected capacitive (glass type), while The non-Apple camp is dominated by film projected capacitors (film type PET); the current mainstream film structure is to use ITO on PET film through photolithography or printing, and the outer layer is protective glass called GFF (glass-film- film) structure, while the mainstream glass structure is to make the touch sensor on the ITO glass, and add a piece of glass to the outer city to form the GG (glass-glass) structure. The former is limited by the fact that high-end ITO thin film materials are in the hands of Japanese companies, and the latte...

AI Technical Summary

Problems solved by technology

[0005] The sheet method has the most potential in the TOL solution, and some large manufacturers are leading the sheet method, but this method has always been troubled by problems such as single product splits, edge engraving, and edge secondary strengthening; at the same time, some large manufacturers have proposed the pices method Production, although this method can use higher-generation substrates, mass production has the advantage of scale effect, but the efficiency is far less than the sheet method