A high-contrast scratch-resistant projection screen for laser projection and its manufacturing method

Abstract

The invention relates to a high-contrast anti-scratch projection screen for laser projection and a manufacturing method thereof, wherein the projection screen includes a base material layer and an optical microstructure array layer; on the surface of the optical microstructure array layer, a microstructure , forming an anti-scratch structure; the anti-scratch structure includes: arranging an anti-scratch structure on the light-absorbing surface; arranging an anti-scratch structure on the light-reflecting surface; The production method includes a) production of optical micro-junction curtain base cloth; and b) production of the anti-scratch layer on the absorption surface and the anti-scratch layer on the reflection surface. Compared with the prior art, the present invention: (1) significantly improves the anti-scratch performance, greatly improving the service life of the projection screen; (2) further improves the structure, improves the contrast, and makes the display effect of the projection screen better; (3) ) The steps of the preparation method are clear, simple and easy to manufacture.

Description

technical field [0001] The invention relates to a projection screen and a manufacturing method of the screen. The specific screen belongs to the screen for short-distance laser projection. Background technique [0002] At present, the special anti-light projection screen for short-distance laser projection on the market includes: a black base layer, a plurality of micro-prism structures and a plurality of light-absorbing regions. The microstructure is arranged on the black base layer, wherein each microstructure includes a light-absorbing surface, a light-reflecting surface, and a bottom surface; in addition, a light-absorbing surface anti-scratch layer can also be arranged on the light-absorbing surface, and the light-absorbing surface The anti-scratch layer covers the surface of the light-absorbing surface; an anti-scratch layer on the light-reflecting surface can also be arranged on the light-reflecting surface, and the anti-scratch layer on the light-reflecting surface c...

AI Technical Summary

Problems solved by technology

[0003] However, in the projection screen formed by the above-mentioned structural design, the top of the triangular prism structure of the microprism structure is a sharp corner, and the sharp corner will easily cause wear and tear during use, and then peel off, resulting in weakened scratch resistance; at the same time, light absorption When the anti-scratch layer is coated on the light-absorbing surface of the triangular structure, it must have a certain thickness of coating, which changes the angle of the triangular structure, thus affecting the effect of the light-absorbing surface on absorbing ambient light; the anti-scratch layer on the light-reflecting surface is coated on the triangular structure There must also be a certain thickness of coating on the light reflecting surface, which changes the angle of the triangular structure and also affects the effect of reflection on the light reflecting surface to generate gain

[0004] Moreover, under this structural design, after ambient light enters each microstructure from each light-absorbing surface, it is guided to the black base layer and is only absorbed through the characteristics of the black material to improve the contrast and clarity of the image, and to avoid glare. The purpose of absorbing surface and light reflecting surface being damaged by foreign objects, but the effect is limited

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