Liquid-crystalline medium

US7105210B2 · kind B2 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Michael Heckmeier · Bensheim, DE
• Brigitte Schuler · Großostheim, DE
• Izumi Saito · Darmstadt, DE
• Sabine Schoen · Darmstadt, DE
• Peer Kirsch · Darmstadt, DE

Key dates

• Filing date: Mar 5, 2004
• Grant date: Sep 12, 2006
• Expiry date: Aug 24, 2024

Classification

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

Abstract

A liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, which contains one or more compounds of the formula Iand one or more compounds of the formula IAin which R1, R2, ring A, L1-8, Z1, X1 and X2 are as defined in claim 1.