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:
Oct. 11, 2022
Filed:
Oct. 16, 2017
Merck Patent Gmbh, Darmstadt, DE;
Jung-Min Lee, Seoul, KR;
Hyun-Woo Bae, Seoul, KR;
Dong-Mee Song, Hwaseong, KR;
Yong-Kuk Yun, Hwaseong, KR;
Merck Patent GmbH, Darmstadt, DE;
Abstract
The invention relates to a liquid-crystalline medium having negative dielectric anisotropy comprising one or more compounds of formula I andone or more compounds selected from the group of the compounds of the formulae IIA, IIB and IIC, wherein the groups and parameters have the meanings indicated in claim, to a guest-host liquid crystal medium derived therefrom comprising one or more dichroic dyes and the use of said medium in devices such as light shutters, switchable windows, switchable mirrors and guest-host displays. The invention further relates to devices containing the liquid crystalline medium according to the invention.