Liquid-crystalline medium

US9701905B2 · kind B2 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Michael Junge · Munich, DE
• Andreas Beyer · Hanau, DE
• Ursula Patwal · Reinheim, DE
• Peer Kirsch · Darmstadt, DE
• Susann BECK · Darmstadt, DE
• Casper Laurens Van Oosten · Waalre, NL
• Felix Fritz Rudolf Schlosser · Würzburg, DE

Key dates

• Filing date: Nov 22, 2013
• Grant date: Jul 11, 2017
• Expiry date: Nov 22, 2033

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K2219/13
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The application relates to a liquid-crystalline medium comprising at least one dichroic dye having a rylene structure which absorbs red light. The application furthermore relates to a device, preferably a device for the regulation of the passage of energy through a light-transmitting area, which contains the liquid-crystalline medium.