Ultra-short-focus anti-light projection curtain and preparation method thereof

Abstract

The invention discloses an ultra-short-focus light-resistant projection curtain and a preparation method thereof. The ultra-short-focus anti-light projection curtain comprises a bottom layer, an optical prism layer and a surface layer. The optical prism layer is formed on at least part of the surface of the bottom layer; wherein the optical prism layer is formed by arranging a plurality of opticalprism units with triangular sections in the horizontal direction, each optical prism unit comprises an upper side surface, a lower side surface and a bottom surface, and the bottom surface is arranged on the bottom layer; the surface layer is formed on at least partial surface of the optical prism layer away from the bottom layer and comprises a supporting layer, black light absorption stripes and white reflection stripes, the black light absorption stripes and the white reflection stripes are arranged alternately, and the white reflection stripes are located on the supporting layer attachedto the lower side face. The black and white stripes are arranged on the surface layer of the ultra-short-focus light-resistant projection curtain, so that the effects of absorbing ambient light and reflecting projection light can be achieved only by attaching the surface layer to the optical prism layer, the yield of products can be greatly increased, and the production cost is effectively reduced.

Description

technical field [0001] The invention relates to the field of projection display, in particular, the invention relates to an ultra-short-focus anti-light projection screen and a preparation method thereof. Background technique [0002] The application of anti-light curtains involves many fields such as film, education, home use, and commercial use. In recent years, as laser TVs have attracted more and more people's favor and attention, the market for its supporting product curtains has also grown. As one of the ultra-short-focus anti-light projection screens, the black grid projection screen mainly uses the physical structure of the optical prism unit to paint black on the side of the prism facing the ambient light, and coat the side facing the projected light with a reflective layer to suppress the environment. light interference. For example, patent CN201822061262.5 provides a high-contrast projection screen. A prism structure is formed on the front of the substrate layer....

AI Technical Summary

Problems solved by technology

[0003] The existing method of manufacturing the light-absorbing layer and reflective layer of the anti-light curtain is to form directly on the optical prism structure by coating, spraying, sputtering, etc., but it is difficult to accurately coat the micron-sized micro-convex structure. , the entire screen cannot be used if there is a slight defect, which also results in a low yield rate for the production of ultra-short-focus anti-light projection screens, and high product prices

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