Capacitive screen function sheet
A technology of functional sheets and capacitive screens, applied in the direction of electrical digital data processing, instruments, data processing input/output process, etc., can solve the problems of reducing transmittance, reducing production efficiency, and high equipment investment, so as to avoid activity problems, The effect of reducing processing costs and low equipment investment
Pending Publication Date: 2016-11-23
西安以锵电子科技有限责任公司
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Problems solved by technology
[0002] In the existing capacitive screen functional sheets, molybdenum-aluminum-molybdenum materials are generally used for electrode etching, but its activity is relatively high, and it is easy to react with other substances. In this way, it is difficult to be compatible in the production line, thereby greatly reducing the investment scale of production. directly reduce production efficiency
At the same time, magnetron sputtering is required in the production process, the investment in related equipment is high, and the coating cycle is long; the target material is a rare metal, which is expensive
Moreover, the transmittance of the ITO conductive film is inversely proportional to the impedance, and capacitive screen products have high requirements for impedance, so when it is necessary to obtain high-impedance conductive functional glass, the transmittance must be reduced to achieve it, and the decrease in transmittance It is bound to affect the performance of capacitive screen
Method used
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Embodiment
[0009] Capacitive screen functional film, including: glass substrate, ITO electrode pattern, conductive silver paste, graphene conductive film, and flexible circuit board with touch drive chip.
[0010] The ITO electrode pattern is obtained by dry etching or wet etching. After the wet etching, it is dried by baking or using an air knife; the graphene conductive film is between the substrate and the ITO electrode pattern and is prepared by chemical vapor deposition.
[0011] This embodiment greatly reduces the processing cost, and does not require a molybdenum-aluminum-molybdenum conductive layer, which can avoid the problem of the active problem of the molybdenum-aluminum-molybdenum conductive layer, which makes it difficult to expand the production scale; at the same time, the preparation of raw materials is easy, the price is cheap, and the equipment investment is also higher. Low, more adaptable to market demand.
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Capacitive screen functional sheet, including: substrate, ITO electrode pattern, conductive silver paste, graphene conductive film, and flexible circuit board with touch driver chip. The invention greatly reduces the processing cost, and does not need to set up the molybdenum-aluminum-molybdenum conductive layer, which can avoid the problem of the activity of the molybdenum-aluminum-molybdenum conductive layer so that it is difficult to expand the production scale; at the same time, the raw material is easy to prepare, the price is cheap, and the investment in equipment is also lower , better adapt to market demand.
Description
Technical field [0001] The invention belongs to the field of electronic components, and particularly relates to a capacitive screen functional sheet. Background technique [0002] Molybdenum, aluminum, and molybdenum materials are generally used for electrode etching in existing capacitive screen functional films, but they are more active and easily react with other substances. As a result, they are difficult to be compatible with the production line, which greatly reduces the scale of production investment. Directly reduce production efficiency. At the same time, magnetron sputtering is required in the production process, the investment of related equipment is high, and the coating cycle is long; the target is a rare metal and expensive. Moreover, the transmittance of the ITO conductive film is inversely proportional to the impedance. Capacitive screen products have high requirements for impedance. Therefore, when a high-impedance conductive functional glass is required, the tr...
Claims
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IPC IPC(8): G06F3/044
Inventor 吴海宁
Owner 西安以锵电子科技有限责任公司