Liquid-crystalline compounds and liquid-crystalline media

US8211513B2 · kind B2 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Axel Jansen · Darmstadt, DE
• Helmut Haensel · Heilbad Heiligenstadt, DE
• Philipp Krattiger · Darmstadt, DE
• Andreas Taugerbeck · Darmstadt, DE
• Malgorzata Rillich · Darmstadt, DE

Key dates

• Filing date: Mar 22, 2011
• Grant date: Jul 3, 2012
• Expiry date: Mar 22, 2031

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K2323/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to liquid-crystalline compounds having at least three fluorine-substituted benzene rings, a terminal trifluoromethyl group and at least one —CF2O— bridge. The invention also relates to liquid-crystalline media prepared therewith and to liquid-crystal display devices (LC displays) containing these media.