The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 04, 2023
Filed:
Jul. 18, 2019
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Masahiro Goto, Tokyo, JP;
Hiroshi Sekiguchi, Tokyo, JP;
Kumiko Kambara, Tokyo, JP;
Tomoya Kawashima, Tokyo, JP;
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Abstract
This reflective screenreflects a part of image light beam projected from an image source LS, to display an image. The reflective screenis provided with: a first optical shape layerwhich has optical transparency and has a plurality of unit optical shapesarranged on a rear surface thereof; and a reflective layerwhich is formed in at least some of the unit optical shapesand 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 shapesare arranged is larger than a light diffusing action in a direction perpendicular to the arrangement direction.