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:
Apr. 14, 2025
Filed:
Jun. 19, 2024
Applicant:
Toppan Holdings Inc., Tokyo, JP;
Inventor:
Kaori Morinaga, Taito-ku, JP;
Assignee:
TOPPAN HOLDINGS INC., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1337 (2005.12); G02F 1/133 (2005.12); G02F 1/1333 (2005.12); G02F 1/1343 (2005.12);
U.S. Cl.
CPC ...
G02F 1/133723 (2012.12); G02F 1/13306 (2012.12); G02F 1/133305 (2012.12); G02F 1/13439 (2012.12);
Abstract
A transparent base material for a liquid crystal device includes an alignment layer that regulates orientations of liquid crystal molecules contained in a light control layer included in the liquid crystal device, a flexible base layer on which the alignment layer is formed, and a first surface and a second surface opposite to the first surface. The first surface is located on the alignment layer, the second surface is located on the base layer, the alignment layer includes polyimide, and the first surface has an indentation hardness of 0.25 GPa or higher as measured by a nanoindentation test according to ISO 14577-1:2015.