High-multiplexed supertwist liquid-crystal display

US5702640A · kind A · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Michael Junge · Munich, DE
• Volker Reiffenrath · Roßdorf, DE

Key dates

• Filing date: Feb 27, 1996
• Grant date: Dec 30, 1997
• Expiry date: Feb 27, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K19/44
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to improved high-multiplexed supertwist liquid crystal displays in which each pixel is addressed by orthogonal row waver forms, the improvement wherein the nematic liquid crystal mixture consists essentially of 40-80% by weight of at least three compounds having a tolan-4,4'-diyl structure element.