Process for manufacturing single-layer multi-point capacitive touch screen with pure ITO membrane structure

A capacitive touch screen, single-layer multi-point technology, applied in electrical digital data processing, data processing input/output process, instruments, etc., can solve the problems of increasing etching process, waste materials, thick product thickness, etc., to reduce etching process, avoid side erosion problems, and facilitate the effect of bridging technology
CN104820535AInactive Publication Date: 2015-08-05GUANGDONG TAITONG SCI TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
GUANGDONG TAITONG SCI TECH
Publication Date
2015-08-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a process for manufacturing a single-layer multi-point capacitive touch screen with a pure ITO membrane structure and belongs to the technical field of touch screen manufacturing. The process sequentially comprises the steps of the cutting of an ITO membrane of a predetermined dimension, ageing, coating, exposure, developing, etching, membrane striping, insulating printing, silver paste printing and baking. The pure ITO membrane is adopted to serve as a raw material; compared with the adoption of a copper plating ITO membrane for a traditional yellow light process, a copper etching process is omitted, original partial printing of silver paste jumpers is modified into silver paste printing of a whole metal layer, silver wires are utilized to replace copper wires, the lateral erosion problem of copper etching is avoided, and chemicals used for etching and lateral erosion restraint are saved. In the aspect of the process, a manufacturing process is simplified, resources in the aspects of manpower, energy and auxiliary materials can be saved, and the rejection rate is reduced.
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Description

technical field

[0001] The invention relates to the technical field of touch screen production, in particular to a single-layer multi-point capacitive touch screen production process with a pure ITO film structure. Background technique

[0002] Capacitive touch screen is a kind of computer input and output device, which has the advantages of high reliability and good durability. It is widely used in communication, consumer electronics, instrumentation and other aspects. It is an important part of human-computer interaction in intelligent mobile terminals. The capacitive touch screen is to output the coordinate position of the finger or conductive medium touch through the digital conversion of the driver chip by converting the capacitance change between the finger or the conductive medium and the electrode on the substrate when touching. At present, capacitive touch screens have been widely used in mobile phones, tablets and other fields. According to the base material, ther...

Claims

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