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:
Jul. 23, 2024
Filed:
Jun. 17, 2019
Merck Patent Gmbh, Darmstadt, DE;
Christoph Wetzel, Darmstadt, DE;
Peer Kirsch, Seeheim-Jugenheim, DE;
Susann Gunst, Darmstadt, DE;
Andreas Ruhl, Rossdorf, DE;
Andrea Ritter, Egelsbach, DE;
Rene Lutz, Brensbach, DE;
Michael Junge, Pfungstadt, DE;
MERCK PATENT GMBH, Darmstadt, DE;
Abstract
The present invention relates to a liquid crystalline medium comprising dichroitic dyes made of benzothiadiazoles and related extended heterocyclic derivatives, the use of said medium for optical, electro-optical and electronic purposes, in particular in devices for regulating the passage of radiation energy from an outside space into an inside space, for example in windows. The invention further relates to devices containing the liquid crystalline medium according to the invention. Some new dichroitic dyes are disclosed.