Title:
PROJECTION SCREEN AND PROJECTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/143439
Kind Code:
A1
Abstract:
Disclosed in the present application is a projection screen. The projection screen at least comprises a diffusion layer, a reflection layer and a microstructure layer, wherein the reflection layer is arranged between the diffusion layer and the microstructure layer; the microstructure layer comprises a plurality of Fresnel structures; each of the Fresnel structures comprises a first face and a second face, and the reflection layer is partially formed on the first face of the Fresnel structure; and the diffusion layer is configured to input an incident projection light beam to the reflection layer, and the reflection layer reflects the projection light beam to a field-of-vision area. According to the above means, in the present application, the brightness gain and anti-ambient-light contrast consistency of the projection screen can be improved.
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Inventors:
HU FEI (CN)
LI SHIJIE (CN)
WANG LIN (CN)
LI YI (CN)
LI SHIJIE (CN)
WANG LIN (CN)
LI YI (CN)
Application Number:
PCT/CN2020/137109
Publication Date:
July 22, 2021
Filing Date:
December 17, 2020
Export Citation:
Assignee:
APPOTRONICS CORP LTD (CN)
International Classes:
G03B21/60; G03B21/62
Foreign References:
| JP2012252112A | 2012-12-20 | |||
| JP2012252112A | 2012-12-20 | |||
| EP2696243A2 | 2014-02-12 | |||
| JP2010139639A | 2010-06-24 | |||
| CN107102509A | 2017-08-29 | |||
| JP2012073360A | 2012-04-12 | |||
| CN110554559A | 2019-12-10 | |||
| JP2013152288A | 2013-08-08 |
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