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Ultra-short-focus projection screen

A projection screen, ultra-short-focus technology, applied in the field of projection display, can solve the problems of weakening ambient light, small viewing angle of projection screen, poor user experience, etc. Effect

Pending Publication Date: 2019-02-22
ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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Embodiment Construction

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0027] figure 1 It is a schematic structural diagram of an ultra-short-focus projection screen provided by an embodiment of the present invention. see figure 1 , taking the direction from the non-display surface of the ultra-short-focus projection screen to the display surface as the first direction (ie figure 1 in the direction of the X-axis). see figure 1 , the ultra-short focus projection screen includes along the first direction (ie figure 1 The total reflection assembly 10 and the protection assembly 20 ...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/60G03B21/602
CPCG03B21/60G03B21/602
Inventor 张旺周淑金于海宁
Owner ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
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