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.

Date of Patent:
Feb. 21, 2023

Filed:

Sep. 08, 2021
Applicant:

Dic Corporation, Tokyo, JP;

Inventors:

Kento Kawakita, Kita-adachi-gun, JP;

Kenta Tojo, Kita-adachi-gun, JP;

Ayaki Hosono, Kita-adachi-gun, JP;

Assignee:

DIC CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09B 67/22 (2006.01); G02F 1/137 (2006.01); C09K 19/60 (2006.01);
U.S. Cl.
CPC ...
C09B 67/0055 (2013.01); C09K 19/601 (2013.01); G02F 1/13725 (2013.01); G02F 2202/043 (2013.01);
Abstract

Provided are a compound represented by the following general formula (1) and a liquid crystal composition containing the compound, and a liquid crystal display device or a light control device having the liquid crystal composition. The compound represented by general formula (1) has both a large dichroic ratio and high solubility in the host liquid crystal. In addition, it has excellent chemical stability at a level usable as a device. Therefore, by using the compound represented by general formula (1) as a component of a GH-type liquid crystal composition, it is possible to provide a liquid crystal display device or a light control device with high contrast.


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