Supertwist liquid-crystal display

US6017469A · kind A · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Volker Reiffenrath · Roßdorf, DE
• Bernhard Rieger · Langenau, DE
• Michael Junge · Munich, DE
• Martina Schmidt · Munster, DE
• Christine Pfister · Großenwiehe, DE

Key dates

• Filing date: Dec 1, 1997
• Grant date: Jan 25, 2000
• Expiry date: Dec 1, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2601/14
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Supertwist liquid crystal displays with outstanding properties are obtained when the nematic liquid crystal mixture contains at least one compound of the formula (I): ##STR1## where the variables are as defined in the disclosure.