Liquid-crystalline medium

US6808763B2 · kind B2 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Harald Hirschmann · Darmstadt, DE
• Sven Schupfer · Aschaffenburg, DE
• Martina Weidner · Munster, DE
• Renate Graulich · Riedstadt, DE

Key dates

• Filing date: Dec 20, 2002
• Grant date: Oct 26, 2004
• Expiry date: Jan 6, 2023

Classification

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

Abstract

The invention relates to a liquid-crystalline medium which is characterized in that it comprises one or more compounds of the formula A and one more compounds of the formula B in which Ra, Rb, Rbb, x and L1 are as defined in claim 1.