A multi-layer elastic composite film with bending shape retention and impact resistance and its preparation method

Abstract

The invention discloses a multi-layer elastic composite film having functions of bending shape maintenance and impact resistance and a preparing method thereof. The composite film has a function of cambered surface covering shape maintenance, a function of elastic vibration absorption and a function of resisting violent impact. The composite film comprises a film protecting layer, a using layer and a stripping layer from top to bottom. The film protecting layer is disposed on the using layer. The stripping layer is disposed under the using layer. The using layer comprises a UV coating, an uppermost transparent film, an upper adhesive coating, a first soft transparent film, a first adhesive coating, a second soft transparent film, a second adhesive coating, and a lowest soft transparent film from top to bottom. The composite film can be firmly adhered to a screen, is not liable to rebound, and has good cambered surface fitting and shape maintenance capability, thus achieving cambered surface edge covering.

Description

Technical field [0001] The present invention relates to a protective film for display screens such as portable mobile terminals. Specifically, it relates to a multi-layer elastic composite film with bending shape-keeping and impact resistance functions for curved glass edge display screens. Background technique [0002] Touch screens can be seen everywhere in people's daily lives, and touch screen protective films are increasingly appearing around us. With the rapid popularization of smart mobile terminals such as smartphones and tablets, various types of mobile phones and tablets are on the market with various configurations. Among them, the release of iPhone6 ​​has attracted widespread attention to mobile phones with curved screens. A curved screen specifically refers to a curved screen with a curved glass edge, while the screen is still a pure flat surface. For such curved edge glass, traditional non-full-screen screen protectors cannot handle arc corners and can only be...

AI Technical Summary

Problems solved by technology

For such a curved edge glass, the traditional non-full screen protective film cannot handle the arc corners, and can only be shrunk inward a little, which causes a gap between the edge of the protective film and the body. It is not beautiful and affects the feel of use. Although the full-cover film made of extremely soft materials can cover it, it can only protect the mobile phone from being scratched. Moreover, the film itself is easy to be scratched and damaged, and the film-sticking process is cumbersome.

The above two types of protective film products cannot simultaneously protect the screen from damage under harsh conditions and maintain the appearance of the mobile phone for curved surface coverage.

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