Invention Grant
- Patent Title: Reflective screen and image display device
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Application No.: US17256350Application Date: 2019-07-18
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Publication No.: US11695904B2Publication Date: 2023-07-04
- Inventor: Masahiro Goto , Hiroshi Sekiguchi , Kumiko Kambara , Tomoya Kawashima
- Applicant: Dai Nippon Printing Co., Ltd.
- Applicant Address: JP Tokyo
- Assignee: Dai Nippon Printing Co., Ltd.
- Current Assignee: Dai Nippon Printing Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Burr Patent Law, PLLC
- Priority: JP 2018136446 2018.07.20 JP 2019075530 2019.04.11 JP 2019131975 2019.07.17
- International Application: PCT/JP2019/028274 2019.07.18
- International Announcement: WO2020/017591A 2020.01.23
- Date entered country: 2020-12-28
- Main IPC: H04N9/31
- IPC: H04N9/31 ; G02F1/1335

Abstract:
This reflective screen 10 reflects a part of image light beam projected from an image source LS, to display an image. The reflective screen 10 is provided with: a first optical shape layer 12 which has optical transparency and has a plurality of unit optical shapes 121 arranged on a rear surface thereof; and a reflective layer 13 which is formed in at least some of the unit optical shapes 121 and by which a part of incident light is reflected and at least the other part of the incident light is transmitted, wherein a light diffusing action in the direction in which the unit optical shapes 121 are arranged is larger than a light diffusing action in a direction perpendicular to the arrangement direction.
Public/Granted literature
- US20210274137A1 REFLECTIVE SCREEN AND IMAGE DISPLAY DEVICE Public/Granted day:2021-09-02
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