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:
Mar. 21, 2023
Filed:
Dec. 23, 2021
Applicant:
Toppan Inc., Tokyo, JP;
Inventors:
Kei Saito, Taito-ku, JP;
Sohei Abe, Taito-ku, JP;
Yuji Yano, Taito-ku, JP;
Saori Matsuyama, Taito-ku, JP;
Assignee:
TOPPAN Inc., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/62 (2014.01); G02F 1/1334 (2006.01); G02F 1/1335 (2006.01); G02F 1/137 (2006.01);
U.S. Cl.
CPC ...
G03B 21/62 (2013.01); G02F 1/137 (2013.01); G02F 1/13345 (2021.01); G02F 1/133509 (2013.01); G02F 1/133555 (2013.01);
Abstract
A screen including a light control sheet which includes a front surface and a rear surface and has a transparent state and an opaque state, and a transparent reflective layer that faces the rear surface. The front surface is positioned such that light from a projection device is applied in the opaque state. The opaque state includes a state in which an average diffuse reflectance of visible light applied to the front surface is 10% or more and less than 20%.