Ultra-short-focus projection screen

Abstract

The embodiments of the invention disclose an ultra-short-focus projection screen. A direction from a non-display surface of the ultra-short-focus projection screen to a display surface is taken as a first direction. The ultra-short-focus projection screen includes a total reflection assembly and a projection which are stacked in order along the first direction. The protection assembly includes a substrate layer, a diffusion layer and an atomization layer which are stacked in order along the first direction, wherein a plurality of dispersed first diffusion particles are arranged in the diffusion layer and the atomization layer and the diffusion layer are in direct contact with each other. The ultra-short-focus projection screen provided by the invention can realize a large viewing angle onthe premise that a second type of ultra-short-focus projection screen has a high bright display effect.

Description

technical field [0001] Embodiments of the present invention relate to projection display technology, and in particular to an ultra-short-focus projection screen. Background technique [0002] The ultra-short-throw projection screen is a tool for displaying images, videos, etc. in commercial advertisements, teaching, office, home or theater entertainment, etc. Compared with LCD screens, the cost of LCD screens is high and difficult to carry and store when large-scale requirements are required. For example, when used in large-scale advertising panels, theater playback, and teaching screens, LCD screens larger than 50 inches are expensive, and It cannot be stored in time when not in use. In addition, the eyesight is easily affected by radiation due to long-term viewing of LCD screens, which is not conducive to human health; the projection screen of the same size does not have the above problems, and its cost is much lower than that of LCD screens. screen, but also easy to carr...

AI Technical Summary

Problems solved by technology

For the second type of ultra-short-throw projection screen, in order to achieve high brightness and reduce the influence of ambient light on its display effect, the viewing angle of the projection screen will be very small, and the user experience will be poor.

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