Front projection optical microstructure curtain using thin film solar cells

Abstract

The present invention provides a front projection optical microstructure curtain using thin film solar cells. The front projection optical microstructure curtain comprises at least a PET substrate layer; a UV light oil layer is printed on the PET substrate layer through intaglio printing; the longitudinal section of the UV light oil layer is zigzag; the zigzag section is composed of upper inclined planes and lower inclined planes; each upper inclined plane, a corresponding lower inclined plane and the PET substrate layer jointly form a triangular structure; an included angle between the upper inclined planes and the PET substrate layer ranges from 30 degrees to 90 degrees; an included angle between the lower inclined planes and the PET substrate layer ranges from 30 degrees to 65 degrees; the thin film solar cells are attached to the upper inclined planes; and when external light is irradiated onto the thin film solar cells from the various angles, the light is absorbed and is converted into electric energy, and therefore, energy-saving performance and environmental friendliness can be realized. The absorption ability of the curtain of the invention for environmental interference light can be greatly increased, so that the curtain can reproduce a projected image in a high-contrast and high-saturation manner in a bright environment.

Description

technical field [0001] The invention provides an optical microstructure curtain, in particular, a forward projection optical microstructure curtain using thin-film solar cells that can resist external environmental light interference and simultaneously absorb light energy and convert it into electrical energy, which belongs to the optical material technology field. Background technique [0002] The projection screen is affected by sunlight or light, the contrast and saturation of the projected image are greatly reduced, and the color reproduction is not ideal. Therefore, it is particularly important to solve the interference of ambient light on the projection effect when using a projection screen in a high-brightness environment. [0003] Among the existing optical curtains, the U.S. invention patent US6842282B2 adopts the structure combining the glass bead layer and the grating layer, adopts the traceable reflection characteristics of the glass bead, and absorbs part of the...

AI Technical Summary

Problems solved by technology

[0003] Among the existing optical curtains, the U.S. invention patent US6842282B2 adopts the structure combining the glass bead layer and the grating layer, adopts the traceable reflection characteristics of the glass bead, and absorbs part of the ambient light with the blackened side wall of the grating, which improves the projected image. However, due to the inherent characteristics of the traceability of glass beads, part of the reflected light deviates from the direction too much, the brightness of the projected image drops sharply, and the brightness of the screen is seriously lost.

The invention patent CN104062839A of Chengdu Pfister Technology Co., Ltd. adopts the structure combining metal dielectric specular reflective film, microprism array structure layer and diffuse reflection layer, and adds an absorbing layer on one side wall of the microprism array structure layer to absorb ambient light. The metal dielectric mirror reflective film is used to increase the picture gain due to its extremely high specular reflectance, so that the projected picture has a good contrast, but the light absorbing layer material used in this invention has a relatively low light absorption efficiency. In a high-brightness outdoor environment, the environment The impact of light on the projection screen is still relatively serious, and the contrast and color reproduction of the screen are greatly affected. The light reflected from the metal medium mirror reflective film cannot all enter the diffuse reflection layer, which causes some light to be lost, which affects the projection effect. have a greater impact

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