Invention Grant
- Patent Title: Projection screen and manufacturing method therefor
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Application No.: US16466631Application Date: 2017-11-03
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Publication No.: US10719005B2Publication Date: 2020-07-21
- Inventor: Fei Hu , Hongxiu Zhang , Zuqiang Guo , Yi Li
- Applicant: APPOTRONICS CORPORATION LIMITED
- Applicant Address: CN Shenzhen, Guangdong
- Assignee: Appotronics Corporation Limited
- Current Assignee: Appotronics Corporation Limited
- Current Assignee Address: CN Shenzhen, Guangdong
- Agency: Knobbe, Martens, Olson & Bear, LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@7c0ed8a5
- International Application: PCT/CN2017/109316 WO 20171103
- International Announcement: WO2018/103480 WO 20180614
- Main IPC: G03B21/625
- IPC: G03B21/625 ; G02B3/08 ; G03B21/602 ; G02B3/00 ; G03B21/60 ; G03B21/62 ; G02B1/10 ; G02B5/02

Abstract:
Provided is a projection screen. The screen includes: a base layer; a cylindrical lens layer formed on a side of the base layer close to a viewer, a Fresnel structure formed on a side of the base layer facing away from the viewer, a reflective layer formed on a side of the Fresnel structure facing away from the base layer, including reflective particles and configured to scatter and reflect, in a solid angle range corresponding to a particle size of the reflective particles, incident light incident from the Fresnel structure, to form reflected light; and a light-absorbing layer formed on a side of the reflective layer facing away from the Fresnel structure. The cylindrical lens layer includes a plurality of cylindrical lenses each having an axis perpendicular to a horizontal direction, and scatters light from the Fresnel structure to increase a viewing angle in the horizontal direction.
Public/Granted literature
- US20190354002A1 PROJECTION SCREEN AND MANUFACTURING METHOD THEREFOR Public/Granted day:2019-11-21
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