Anti-peeping brightening film and preparation method thereof

Abstract

The invention relates to the technical field of liquid crystal display, in particular to a peep-proof brightening film and a manufacturing method thereof. The peep-proof brightening film comprises a base material layer, a prism structure layer and a peep-proof film layer. The base material layer comprises a first optical face and a second optical face. The first optical face is coated with the prism structure layer. The second optical face is coated with the peep-proof film layer which is a micro blind window structure comprising a plurality of evenly-arranged rib structure units. The rib structure units are made of acrylic resin and reflection materials. According to the peep-proof brightening film, a Roll-to-Roll transfer printing method and UV light source solidification are adopted, and the prism structure layer and the peep-proof film layer are manufactured and formed. The peep-proof brightening film has the good peep-proof effect while the axial brightness is improved, the service life is long, and the manufacturing method is simple in technology, has the advantages of being high in effect and low in cost, and can be applicable to large-scale production of peep-proof brightening films.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a privacy-enhancing brightness-enhancing film and a preparation method thereof. Background technique [0002] At present, electronic display screens are more and more widely used in people's daily life. With the improvement of living standards, people have put forward higher requirements for electronic display screens, not only requiring electronic display screens to have uniform high axial brightness and high color rendering index, because electronic display screens are increasingly appearing In public places, people hope that the electronic display screen also has a good anti-peeping effect, so that the information on the screen can not be peeped by the people next to it, so as to protect business secrets and personal privacy more effectively. [0003] Liquid crystal displays have become the mainstream electronic display screens on the market because of their ad...

AI Technical Summary

Problems solved by technology

[0004] At present, the anti-peeping film is mainly covered with a layer of anti-peeping film on the surface of the LCD screen to achieve the anti-peeping effect. Since the anti-peeping film directly contacts the external environment, and at present, the information input method of many electronic display screens adopts touch input, and the structure of the anti-peeping film is easy. The anti-peeping function of the film is lost due to repeated touches; on the other hand, when making the anti-peeping film, light-absorbing materials are usually added to the glue, such as carbon black, iron black, black spinel or Black rubyite and other black light-absorbing materials

These light-absorbing materials will have a strong absorption effect on large-angle light, which greatly reduces the light transmittance of the anti-peeping film and seriously reduces the brightness of the LCD screen, which is not conducive to normal observation by users.

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