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Patent Searching and Data


Title:
REFLECTIVE SCREEN AND VIDEO DISPLAY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/209360
Kind Code:
A1
Abstract:
The present invention reduces the reflection of external light and improves contrast. A reflective screen 20 reflects video light including red, green, and blue laser light projected from a video source LS to enable the video light to be observed, and is characterized by comprising a base material layer 24, a lens layer 23 in which a Fresnel lens shape is formed on the rear side of the base material layer 24, said rear side being the opposite side to the video source side of the base material layer 24, and a reflection layer 22 which is provided on the rear side of the lens layer 23, with a light absorption portion having wavelength selectivity being provided closer to the video source side in comparison to the reflection layer 22.

Inventors:
HIROMITSU MASASHI (JP)
YAMASHITA YOSHIYUKI (JP)
Application Number:
PCT/JP2020/016122
Publication Date:
October 15, 2020
Filing Date:
April 10, 2020
Export Citation:
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Assignee:
DAINIPPON PRINTING CO LTD (JP)
International Classes:
G02B3/08; G02B5/02; G02B5/08; G02B5/22; G03B21/00; G03B21/60
Foreign References:
JP2012252097A2012-12-20
JP2008268789A2008-11-06
JP2013152288A2013-08-08
JP2007011190A2007-01-18
JP2004053732A2004-02-19
JP2004163806A2004-06-10
US20050088736A12005-04-28
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
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