Liquid-crystalline medium

US6827990B2 · kind B2 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Michael Heckmeier · Bensheim, DE
• Brigitte Schuler · Großostheim, DE
• Izumi Saito · Darmstadt, DE
• Volker Reiffenrath · Roßdorf, DE
• Georg Luessem · Petershausen, DE
• Christian Hock · Mainaschaff, DE

Key dates

• Filing date: May 27, 2003
• Grant date: Dec 7, 2004
• Expiry date: May 27, 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 based on a mixture of polar compounds of positive dielectric anisotropy, characterized in that it comprises one or more compounds of the formula I in which R1, L1 and L2 are as defined in claim 1.