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:
May. 23, 2000
Filed:
Dec. 17, 1998
Eiji Okabe, Chiba, JP;
Ryushi Shundo, Chiba, JP;
Shinichi Saito, Chiba, JP;
Hideo Saito, Chiba, JP;
Takashi Kaneko, Osaka, JP;
Tomoo Furukawa, Osaka, JP;
Akira Sakaigawa, Osaka, JP;
Mitsuhiro Koden, Osaka, JP;
Chisso Corporation, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
Ferroelectric liquid crystal compositions having a large dependency of spontaneous polarization on temperature; liquid crystal display devices exhibiting a small dependency of response speed on temperature and making it possible to obtain a wide temperature margin in practical use, and fabricated by using the ferroelectric liquid crystal composition; and methods for driving the devices are provided; the compositions comprising at least one compound expressed by the following general formula (1) ##STR1## at least one compound expressed by the following general formula (2), and ##STR2## at least one compound expressed by the following general formula (3) ##STR3## wherein R.sub.1 to R.sub.6, ring A-B, A, X.sub.1, and X.sub.2 are herein defined.