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:
Feb. 17, 1987
Filed:
May. 25, 1983
Applicant:
Inventor:
Tsuneo Yamazaki, Tokyo, JP;
Assignee:
Kabushiki Kaisha Daini Seikosha, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
3503 / ; 350337 ; 350338 ;
Abstract
A matrix liquid crystal display device comprising a reflecting plate and a polarizing plate coated on an insulating substrate, a thin film transistor arranged on the insulating substrate in matrix configuration, and a liquid crystal sandwiched between the insulating substrate and a glass plate. A cross-talk between picture elements caused by transmission or reflection of light on the substrate is prevented. The thin film transistor is formed by a semiconductor film made of amorphous silicon or a gate insulating film made of silicon dioxide which is easily formed at low temperature under 40.degree. C. by plasma CVD method or the like.