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. 07, 2022
Filed:
Sep. 25, 2020
Applicant:
Merck Patent Gmbh, Darmstadt, DE;
Inventors:
Joseph Sargent, Southampton, GB;
Sarabjot Kaur, Southampton, GB;
Simon Siemianowski, Rossdorf, DE;
Izumi Saito, Muehltal, DE;
Assignee:
Merck Patent GmbH, Darmstadt, DE;
Primary Examiner:
Int. Cl.
CPC ...
C09K 19/04 (2006.01); G02F 1/1337 (2006.01); C09K 19/56 (2006.01); C09K 19/58 (2006.01); C09K 19/54 (2006.01);
U.S. Cl.
CPC ...
G02F 1/133711 (2013.01); C09K 19/56 (2013.01); C09K 19/58 (2013.01); G02F 1/133788 (2013.01); C09K 19/04 (2013.01); C09K 2019/546 (2013.01); C09K 2019/548 (2013.01); C09K 2323/02 (2020.08); G02F 1/133726 (2021.01);
Abstract
A double layer liquid crystal device comprises a first and a second layer with orthogonal or crossed alignment of the liquid crystal phase of the two layers, in which the first and second layer have first and second alignment aids comprised of a polymerized or polymerizable molecular compound. The layers are aligned by UV photoalignment and vertical self-alignment by the aid of suitable additives.