Liquid crystal display element

US4877547A · kind A · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Georg Weber · Langen (Hessen), DE
• Bernhard Scheuble · Alsbach, DE
• Joachim Krause · Dieburg, DE

Key dates

• Filing date: Oct 23, 1987
• Grant date: Oct 31, 1989
• Expiry date: Oct 23, 2007

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K19/42
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a new liquid crystal display element with static or multiplex control with a low multiplex ratio and an operating voltage below 3.3 volts, containing a liquid crystal dielectric, wherein the operating temperature range extends from -30.degree. C. to +80.degree. C. and the viscosity of the dielectric at 20.degree. C. is less than 40 mPa.s.