Process for the production of an impact-resistant liquid crystal switching and display device

US5206751A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Claus Escher · Mühltal, DE
• Gerhard Illian · Frankfurt am Main, DE
• Norbert Rosch · Frankfurt am Main, DE
• Takamasa Harada · Oberursel, DE

Key dates

• Filing date: Apr 10, 1991
• Grant date: Apr 27, 1993
• Expiry date: Apr 10, 2011

Classification

• Technology area (CPC G): Physics
• CPC primary: G02F1/141
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Addition of coronands and cryptands to FLC-mixtures makes it possible to bring the FLC material into a homogeneous "bookshelf" or "quasi-bookshelf" geometry. When such a FLC mixture is used, displays which have been shock-damaged can be regenerated by applying a suitable electric field for a short period of time.