High-shielding reflection film and manufacturing process thereof

Abstract

Disclosed are a high-shielding reflection film and manufacturing process thereof. The high-shielding reflection film comprises an optical reflection film, a polaroid and a combining layer, the optical reflection film consists of multiple layers of stacked dielectric optical films made of different materials, the polaroid can absorb parts of light emitted to the polaroid and can generate a polarization state, and the optical reflection film and the polaroid are fixedly combined in a specific mode by the combining layer. The optical reflection film consists of the multiple layers of stacked dielectric optical films made of the different materials, by the aid of an optical interference principle, most of light emitted into the optical reflecting film can be reflected, and parts of the light penetrates through the optical reflecting film. About a half of the incident light can be absorbed by the polaroid while the other half of the incident light penetrates through the polaroid. By the aid of different reflection characteristics of the materials of the optical reflection film and the polaroid, difference of reflectivity is increased. Accordingly, by the aid of the high-shielding reflection film, difference of reflectivity of incident light in different directions can be greatly increased, and the high-shielding reflection film achieves a privacy effect of a one-way mirror.

Description

technical field [0001] The invention provides a high-shielding reflective film and its manufacturing process, in particular to an optical reflective film with an anti-peeping effect formed by combining an optical reflective film and a polarizer. Background technique [0002] Ordinary glass has very good light transmission, and people standing on either side of the glass can see things on the other side. Another kind of one-way mirror has different effects. When installed on a window, people indoors can still easily see people outside, just like ordinary transparent glass. However, due to the large contrast between indoor and outdoor light, outdoors Some people look at the one-way glass as if they are looking in a mirror, and it is difficult to see the indoor scenery clearly. [0003] The difference between the existing one-way mirror and ordinary glass is that the one-way mirror is provided with one or more thin metal films or metal oxide films on the surface of the substra...

AI Technical Summary

Problems solved by technology

[0005] In addition to the one-way mirrors made of metal or metal oxide films in the prior art, architectural glass or automotive glass often also adds dyeing pigments to the glass to reduce the brightness of direct sunlight. The glass or film made by the method of color masterbatch or color masterbatch has almost the same reflectivity difference between the inside and the outside, so that people outside can easily see the room without almost no privacy.

The one-way mirrors produced by the above methods cannot achieve the function of high one-way shielding, and even if there is shielding, the transmittance value at this time is generally too low, resulting in too low light transmittance, making it difficult for people in the room. Identify what's outside

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