REFLECTIVE SCREEN, REFLECTIVE SCREEN UNIT, AND VIDEO DISPLAY DEVICE

WIPO Patent Application WO/2021/205907

A1

Provided is a reflective screen with improved adhesion to a support plate.　This reflective screen (10) reflects video light projected from a video source and displays the reflected video light so as to be observable, the reflective screen comprising: a lens layer (11) having a Fresnel lens shape in which a plurality of unit lenses (111) are arrayed; and a reflective layer (12) which is formed on the unit lenses (111) of the lens layer (11) and reflects light, wherein the unit lenses (111) protrude from the video source side to the back surface side in the thickness direction of the lens layer (11), the lens layer (11) has, at least on one edge thereof, a flat section (114) where a portion of the back surface side serves as a flat surface (114f), and h1min-h2>0 is satisfied, where h1min is the minimum height of the height h1 which is the distance in the thickness direction of the lens layer (11) from a position of the lens layer (11) most on the video source side to a position of the unit lenses (111) most on the back surface side, and h2 is the height which is the distance from the flat surface (114f) of the flat section (114) to the position of the unit lenses (111) most on the back surface side.

YAMAGUCHI SUNAO (JP)
HIROMITSU MASASHI (JP)

PCT/JP2021/012931

October 14, 2021

March 26, 2021

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DAINIPPON PRINTING CO LTD (JP)

G03B21/60; G03B21/00; G03B21/14; H04N5/74

WO2002027399A1

2002-04-04

JP2015072475A	2015-04-16
JP2005345839A	2005-12-15
JPH04322202A	1992-11-12
US20170255086A1	2017-09-07
US20100079861A1	2010-04-01

SHOBAYASHI Masayuki et al. (JP)

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