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:
Jun. 27, 2023
Filed:
Dec. 28, 2021
Applicant:
Toppan Inc., Tokyo, JP;
Inventors:
Toshiji Yasuhara, Taito-ku, JP;
Takehiro Yamada, Taito-ku, JP;
Assignee:
TOPPAN Inc., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1334 (2006.01); G02F 1/133 (2006.01); G02F 1/1343 (2006.01); G02F 1/137 (2006.01);
U.S. Cl.
CPC ...
G02F 1/1334 (2013.01); G02F 1/137 (2013.01); G02F 1/13306 (2013.01); G02F 1/134309 (2013.01); G02F 2203/01 (2013.01);
Abstract
A light control sheet including a light control layer switchable between a transparent state and an opaque state, and transparent electrode layers sandwiching the light control layer. The light control layer includes a transparent polymer layer that has domains whose average size is 1.0 μm-1.55 μm, and the light control layer includes a liquid crystal composition at a concentration of 37%-55% such that the liquid crystal composition fills the domains.