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:
Jul. 06, 1976
Filed:
Aug. 05, 1974
Applicant:
Inventors:
Kanemitsu Kubota, Suwa, JA;
Jin Nagasaki, Shimosuwa, JA;
Assignee:
Kabushiki Kaisha Suwa Seikosha, Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
3501 / ; 29592 ;
Abstract
A field-effect liquid crystal display device has cell plates, the interior surfaces of which are covered with a film of synthetic resin. The grooves required for optical activity of the liquid crystal material are in the synthetic resin. The construction of the cell is such that all volatiles including moisture can be driven off by heating and the system can be tightly sealed to keep it free of moisture. A method of assembly is disclosed.