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Light-resistant layer for Fresnel projection screen and Fresnel projection screen

A projection screen and layered technology, applied in the field of projection display, can solve the problems of affecting the viewing effect of human eyes, insufficient ability of the screen to resist ambient light, and reduction of screen contrast

Inactive Publication Date: 2019-11-19
QINGDAO HISENSE LASER DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when the light d passes through the diffusion layer 04, a small part of the light will directly exit into the human eye 03 (light f), thereby affecting the viewing effect of the human eye 03 (intuitively, the contrast of the screen image is reduced, and the image is whitish), that is Insufficient screen resistance to ambient light

Method used

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  • Light-resistant layer for Fresnel projection screen and Fresnel projection screen
  • Light-resistant layer for Fresnel projection screen and Fresnel projection screen
  • Light-resistant layer for Fresnel projection screen and Fresnel projection screen

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Embodiment Construction

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are only a partial embodiment of the present invention, rather than a complete embodiment. . Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0026] In describing the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientations or positional relationships indicated by "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying ...

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Abstract

The invention discloses a light-resistant layer for a Fresnel projection screen and the Fresnel projection screen, relates to the technical field of projection display, and can improve the ambient light resistance of an existing Fresnel projection screen. The light-resistant layer for the Fresnel projection screen comprises a layered body, and the layered body is used for enabling light of red, green and blue wave bands to pass through and enabling light of other wave bands to be totally reflected and totally absorbed or partially reflected and partially absorbed, or the layered body is used for reflecting light of red, green and blue wave bands and absorbing at least one part of light of other wave bands. The light-resistant layer for a Fresnel projection screen and the Fresnel projectionscreen are used for the Fresnel projection screen.

Description

technical field [0001] The invention relates to the technical field of projection display, in particular to a light-resistant layer for a Fresnel projection screen and a Fresnel projection screen. Background technique [0002] In the field of projection display, especially in the field of ultra-short-focus laser projection display, which has become more popular in recent years, the projector is generally used with a Fresnel projection screen. The screen is characterized by high gain, small viewing angle, and certain ability to resist ambient light. Display works well. [0003] refer to figure 1 , the principle of anti-environmental light of the screen is: the light hits the surface of the screen (light a), part of which is reflected by the screen (light b), and the other part enters the screen (light c) and is reflected by Fresnel layer 01 and reflective layer 02 Light d is formed, and finally exits the screen as light e; since light b and e fail to enter the human eye 03,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/60
CPCG03B21/60
Inventor 赵飞钟强李晓平
Owner QINGDAO HISENSE LASER DISPLAY CO LTD
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