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:
Sep. 23, 2025
Filed:
Sep. 28, 2023
Applicant:
Toppan Inc., Tokyo, JP;
Inventor:
Taisuke Enya, Taito-ku, JP;
Assignee:
TOPPAN Inc., Taito-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1333 (2006.01); C09K 19/02 (2006.01); C09K 19/38 (2006.01); G02F 1/00 (2006.01); G02F 1/1337 (2006.01);
U.S. Cl.
CPC ...
G02F 1/133711 (2013.01); C09K 19/02 (2013.01); C09K 19/3838 (2013.01); G02F 1/0063 (2013.01); C09K 2219/03 (2013.01);
Abstract
A light control layer contains a liquid crystal composition and a resin composition. The liquid crystal composition is composed of a liquid crystal compound having a nematic-isotropic phase transition temperature of 110° C. or greater and 140° C. or less, the resin composition contains an acrylic polymer, a bridging group of the acrylic polymer is a saturated alkyl group having 1 or more and 12 or fewer carbon atoms, and the resin composition contains, in the acrylic polymer, a moiety in which the saturated alkyl group is a linear alkyl group, whereby a light control device operates normally over a wider temperature range.