Supertwist liquid-crystal displays and liquid-crystal mixtures therefor

US6544602B1 · kind B1 · utility

Assignee

• MERCK PATENT GESELLSCHAFT MIT BESHRANK TER HAFTUNG · DE

Inventors

• Harald Hirschmann · Darmstadt, DE
• Clarissa Weller · Darmstadt, DE
• Georg Weber · Langen (Hessen), DE
• Kazuo Totani · Ichikawa, JP
• Akihiro Kojima

Key dates

• Filing date: May 4, 2000
• Grant date: Apr 8, 2003
• Expiry date: May 4, 2020

Classification

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

Abstract

The invention relates to supertwist liquid-crystal displays (SLCDs) having very short response times and good steepnesses and angle dependencies, and to the novel nematic liquid-crystal mixtures used therein, which are distinguished in that they comprise at least one compound of the formula IA and at least one compound of the formula IB in which Ra, Rb, Rc, Rd, Y1, Y2, n and p have the meaning given.