Title:
REFLECTIVE SCREEN, REFLECTIVE SCREEN UNIT, AND VIDEO DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/187570
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a reflective screen with improved adhesiveness with a support plate. A reflective screen 10 reflects video light projected from a video source and observably displays the video light, and is provided with: a Fresnel lens-shaped lens layer 11 in which a plurality of unit lenses 111 are arranged; and a reflective layer 12 which is formed on the unit lenses 111 of the lens layer 11 and reflects light. The unit lens 111 protrudes from the video source side to the back surface side in the thickness direction of the lens layer 11. In the lens layer 11, a flat part 114 having a flat surface f on the back surface side is formed at at least one end edge. In the thickness direction of the lens layer 11, a maximum lens height h1max of a lens height h1 that is the distance from a position closest to the video source side to a position closest to the back surface side of the unit lens 111, and a flat surface height h2 that is the distance from the position closest to the video source side of the unit lens 111 to the flat surface f of the flat part 114 satisfy h2 ≥ h1max.
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Inventors:
YAMAGUCHI SUNAO (JP)
HIROMITSU MASASHI (JP)
HIROMITSU MASASHI (JP)
Application Number:
PCT/JP2021/011136
Publication Date:
September 23, 2021
Filing Date:
March 18, 2021
Export Citation:
Assignee:
DAINIPPON PRINTING CO LTD (JP)
International Classes:
G03B21/00; G02B5/02; G03B21/60; H04N5/74
Foreign References:
| JP2012226047A | 2012-11-15 | |||
| JP2015014765A | 2015-01-22 | |||
| JP2016200684A | 2016-12-01 | |||
| JP2009210854A | 2009-09-17 | |||
| JPH0638151A | 1994-02-10 | |||
| US20050041286A1 | 2005-02-24 |
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
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