Blanking manufacturing method of capacitance touch screen

Abstract

The invention belongs to the technical field of capacitance touch screens, particularly relates to a blanking manufacturing method of a capacitance touch screen. The method includes adopting vacuum magnetic-control continuous plating to deposit a silica film on a glass substrate to serve as a bottom layer; depositing an indium tin oxide film on the silica film through magnetic-control sputtering to serve as an electroconductive film layer; plating a silicon nitride film on the indium tin oxide film to serve as a blanking layer. Indium tin oxide is arranged on the glass substrate, sheet resistance value of indium tin oxide can be easily controlled to be within a preset range, and parameters of the silicon nitriode film are adjusted according to sheet resistance of indium tin oxide and film forming effect, so that lines on indium tin oxide are enabled to be nonobvious, excellent blanking effect is realized, visual enjoyment of a user is improved, the problem that the capacitance touch screen cannot balance the sheet resistance value of indium tin oxide and the blanking effect, and the capacitance touch screen meets market requirements and is high in market competitiveness.

Description

technical field [0001] The invention belongs to the technical field of capacitive touch screens, and in particular relates to a blanking manufacturing method of a capacitive touch screen. Background technique [0002] The ITO glass used in the capacitive touch screen is a kind of transparent conductive glass, which is composed of a layer of transparent conductive film on ordinary white glass. ITO conductive glass is made by coating a layer of indium tin oxide (commonly known as ITO) film on the basis of soda-calcium-based or silicon-boron-based substrate glass by magnetron sputtering. [0003] The special ITO conductive glass for liquid crystal displays is also coated with a silicon dioxide barrier layer before the ITO layer is coated to prevent the sodium ions on the substrate glass from diffusing into the liquid crystal in the cell. The performance indicators of ITO glass are transmittance and electrical resistance, and the transmittance is the most important performance ...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a blanking manufacturing method for a capacitive touch screen, aiming to solve the problem that the capacitive touch screen in the prior art cannot take into account both the resistance value of the indium tin oxide square and the shadow removal effect, and the problem of low yield

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