Liquid-crystalline mixtures

US7052744B2 · kind B2 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Harald Hirschmann · Darmstadt, DE
• Sven Schuepfer · Aschaffenburg, DE
• Renate Graulich · Riedstadt, DE
• Martina Weidner · Munster, DE
• Kevin Adlem · Bournemouth, GB
• Mark John Goulding · Woodside, GB
• Patricia Eileen Saxton · Winchester, GB

Key dates

• Filing date: Apr 7, 2004
• Grant date: May 30, 2006
• Expiry date: Jul 3, 2024

Classification

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

Abstract

Nematic liquid-crystal mixtures comprising one or more compounds of the formula Iin which R1 and R2 are as defined herein, are suitable for use in TN and STN liquid-crystal displays.