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:
Apr. 05, 1977
Filed:
Mar. 17, 1975
Applicant:
Inventors:
Masahide Tsukamoto, Neyagawa, JA;
Tetsuro Ohtsuka, Takatsuki, JA;
Kazuhisa Morimoto, Settsu, JA;
Yoshinobu Murakami, Katano, JA;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ; C09K / ; G02F / ;
U.S. Cl.
CPC ...
252299 ; 252408 ; 3501 / ; 260143 ;
Abstract
An electro-optical device using a liquid crystal consisting of 99.9 to 30 wt.% of at least one nematic liquid crystal and 0.1 to 70 wt. % of at least one optically active liquid crystal compound, (+)-p-alkoxy-p'-(2-methylbutyl)azoxybenzene. Such a device has a better display performance than similar devices because the mixture has a threshold voltage and a rapid response to an electric signal applied to the device, and so it is very practical for a matrix display device.