Punching knife mold of touch screen protecting film and fitting process of touch screen protecting film

Abstract

The invention provides a punching knife mold of a touch screen protecting film and a fitting process of the touch screen protecting film. The punching knife mold is characterized in that a knife point consists of an outer-layer knife point and an inner-layer knife point, wherein the outer-layer knife point and the inner-layer knife point are annular, and punching edges of the outer-layer knife point and the inner-layer knife point are located in the same plane; the inner-layer knife point is arranged in the outer-layer knife point, and a gap is formed between the outer-layer knife point and the inner-layer knife point. The punching knife mold is designed in a double-layer annular knife point structure can be used for annularly cutting the protecting film, and a punched annular glue layer exposed outside only needs to fit an peripheral region outside a visible region of a touch screen, so that the fitting process can be simplified, and the rate of finished products is beneficially guaranteed.

Description

technical field [0001] The invention relates to a die-cutting knife mold for a touch screen protective film and a bonding process of the touch screen protective film, which belongs to the field of panel manufacturing. Background technique [0002] Because the touch screen has the advantages of intuition, simplicity, and quickness, it has become a mainstream input device for improving the man-machine interface, such as mobile phones, PDAs, multimedia, and public information query systems. At present, the touch screen is becoming thinner and thinner, and it is easily damaged during the transfer process. Therefore, the protection requirements for the finished touch screen are getting higher and higher. [0003] The touch screen protective film is necessary to protect the touch screen. The main function of the touch screen protective film is to protect the touch screen sensor and prevent scratches, dirt and deformation of the touch screen during the transfer process. Such as f...

AI Technical Summary

Problems solved by technology

There is a fatal shortcoming in the traditional bonding process of the touch screen. Since a large area of ​​protective film needs to be bonded to the surface of the touch screen, there will inevitably be air bubbles between the protective film and the touch screen. In order to drive out these air bubbles, it is necessary to After a high temperature and high pressure degassing process, the touch screen sensor is easily deformed during the degassing process

[0004] Therefore, the operation of laminating the protective film is also an important link to ensure the quality of the final product, and the high temperature and high pressure degassing treatment and equipment investment have increased the cost and difficulty of the film lamination operation.

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