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:
May. 12, 2026
Filed:
Apr. 11, 2023
Applicant:
Merck Patent Gmbh, Darmstadt, DE;
Inventors:
Assignee:
MERCK PATENT GMBH, Darmstadt, DE;
Primary Examiner:
Int. Cl.
CPC ...
C09K 19/30 (2006.01); C09K 19/04 (2006.01); C09K 19/54 (2006.01);
U.S. Cl.
CPC ...
C09K 19/3098 (2013.01); C09K 19/3003 (2013.01); C09K 19/542 (2013.01); C09K 2019/0414 (2013.01); C09K 2019/3009 (2013.01); C09K 2019/301 (2013.01); C09K 2019/548 (2013.01);
Abstract
A liquid-crystal material (LC media) containing thiophene compounds which are stabilized by sterically hindered amines or amine derivatives (HALS, hindered amine light stabilizers), where the LC media contains one or more compounds of formula 13 and one or more compounds of formula H and liquid-crystal displays (LC displays) which contain these LC materials.