Projection screen and projection system

A projection screen and projection technology, applied in the field of projection, can solve the problems of low gain, difficult to take into account, and high gain of ordinary white screens, and achieve the effect of maintaining the consistency of anti-ambient light contrast and improving brightness gain

Pending Publication Date: 2021-08-06
APPOTRONICS CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, there are solutions to improve the gain and contrast performance of projection screens on the market, but these two performance parameters are trade-offs, and it is difficult to balance them
Some wire grid projection screens have greatly improved contrast due to the use of selectively applied reflective coatings, but the gain is lower, not as high as that of ordinary white screens

Method used

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  • Projection screen and projection system
  • Projection screen and projection system
  • Projection screen and projection system

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Embodiment Construction

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0030] refer to figure 1 , figure 1 It is a schematic structural diagram of an embodiment of the projection screen provided in the present application. The projection screen 10 includes at least a diffusion layer 11 , a reflection layer 12 and a microstructure layer 13 .

[0031] The reflection layer 12 is disposed between the diffusion layer 11 and the microstructure layer 13 , and the diffusion layer 11 , the reflection layer 12 and the microstructure layer...

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Abstract

The invention discloses a projection screen, the projection screen at least comprises a diffusion layer, a reflection layer and a microstructure layer, the reflection layer is arranged between the diffusion layer and the microstructure layer, the microstructure layer comprises a plurality of Fresnel structures, each Fresnel structure comprises a first surface and a second surface, the reflection layer is partially formed on the first surfaces of the Fresnel structures, the diffusion layer is used for inputting an incident projection beam to the reflection layer, and the reflection layer reflects the projection beam to a field of view area. In this way, the brightness gain and the anti-ambient light contrast consistency of the projection screen can be improved.

Description

technical field [0001] The present application relates to the field of projection technology, in particular to a projection screen and a projection system. Background technique [0002] The ultra-short-throw projection display is popular with consumers for its large display size (for example, 100 inches). The projection screen used in conjunction with the projector has also become one of the important supporting products of the current projector because it can significantly improve the projection display effect. . One of the important functions of the projection screen is to increase the brightness of the display. The use of a high-gain projection screen can reduce the requirements for the luminous flux output by the projector and improve the practical cost performance of the projection display system. In addition, another important function of the projection screen is to reflect the projection. The light absorbs ambient light at the same time, so that the audience can watc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/60G03B21/602
CPCG03B21/60G03B21/602G03B21/62
Inventor 胡飞李士杰王霖李屹
Owner APPOTRONICS CORP LTD
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