Peep-proof film applicable to curved screen

Abstract

The invention discloses a peep-proof film applicable to a curved screen. The peep-proof film comprises linear Fresnel structures and a peep-proof film, wherein two sides of the peep-proof film are rhomboid micro blind window monomers, wherein light is adjusted to parallel light perpendicular to a main screen by lenses of the linear Fresnel structures; a plurality of rhomboid micro blind window monomers are arranged on two sides of a film body micro blind window film of the peep-proof film, and the size of an area formed by the plurality of rhomboid micro blind window monomers is fit with the arc size of the curved surface of the screen; one linear Fresnel structure is correspondingly arranged under each rhomboid micro blind window monomer, scattered light of the curved screen passes through the linear Fresnel structures, and further passes through the rhomboid micro blind window monomers, to be formed into light emitted in parallel by a flat screen. According to the peep-proof film, light rays of the curved screen can be effectively concentrated to a user vision area.

Description

technical field [0001] The invention relates to the field of optics, in particular to a privacy film with a linear Fresnel structure that can be used for curved screens. Background technique [0002] With the development of information science and technology, various electronic products have been gradually integrated into human daily life, and the information display methods of electronic products are transmitted to users through the screen. Moreover, the development of various candid photography technologies has also gradually brought us into an era of no privacy. Therefore, the display method of directly presenting information directly to the user of electronic products by the screen becomes very unsafe, especially in some highly confidential and When dealing with personal privacy information, once the information is used by criminals, it will cause economic losses to users. In order to avoid the leakage of user information, the methods of isolating bystanders and softwar...

AI Technical Summary

Problems solved by technology

In order to protect the security of screen information, an anti-peep film can be attached to the surface of the screen, so that the direction of the light output from the screen is narrowed to the visible area of ​​the user. The original anti-peep film is a fine louver structure, such as figure 1 Shown is the existing anti-peeping film structure, which uses a micro-louver structure. After the anti-peeping film is attached to the surface of the screen, the light direction changes, which will greatly affect the user experience, lose the anti-peeping effect, and affect the user's use

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