The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 09, 2001
Filed:
Jun. 29, 1998
Toshiaki Nonaka, Iruma, JP;
Ayako Takeichi, Tokorozawa, JP;
Li Ji, Higashikurume, JP;
Kazuya Nagao, Kawagoe, JP;
Rainer Wingen, Hattersheim, DE;
Javier Manero, Liederbach, DE;
Barbara Hornung, Hasselroth, DE;
Wolfgang Schmidt, Köln, DE;
Hoechst Research & Technology Deutschland GmbH & Co. KG, Frankfurt, DE;
Abstract
A ferroelectric liquid crystal mixture having a negative value of &Dgr;e and allowing a high speed response and a low voltage driving, as well as a liquid crystal display devise using the crystal mixture of the invention. The ferroelectric liquid crystal mixture according to the invention comprises two or more compounds from at least two different of the following classes of compounds: A. thiadiazoles, B. phenanthrenes, C. 2-fluoropyridines, D. difluorobenzenes, E. meta-substituted aromatic compounds.