Electro-optical liquid crystal display element

US5196140A · kind A · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Eike Poetsch · Mühltal, DE
• Hans-Adolf Kurmeier · Seeheim-Jugenheim, DE
• Rudolf Eidenschink · Mainz, DE
• Georg Weber · Langen (Hessen), DE
• Andreas Wachtler · Griesheim, DE

Key dates

• Filing date: Dec 23, 1988
• Grant date: Mar 23, 1993
• Expiry date: Dec 23, 2008

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K19/3001
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to an electro-optical liquid crystal display element containing a dielectric with at least two liquid-crystalline components, wherein the dielectric, for shortening the switching times, contains at least one fluorine-containing compound of the formula I EQU R.sup.1 --(A.sup.1 --Z.sup.1).sub.m --A.sup.2 --R.sup.2 I wherein the radicals R.sup.1, R.sup.2, A.sup.1, A.sup.2, Z.sup.1 and m have the meaning given in claim 1.