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. 03, 1990
Filed:
Aug. 19, 1988
Applicant:
Inventor:
Shouji Ichikawa, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
350332 ; 350333 ;
Abstract
A thin-film transistor array used for a liquid crystal display device uses a plurality of transistor structures as switches between a video signal line and a pixel electrode which is controlled with a control signal applied through a scanning line, each of transistor structures having a plurality of thin-film transistors connected in series and parallel and having gates commonly connected to the same scanning line. An example of each transistor structure has four thin-film transistors and has a parallel connection of two sets of series connections of two thin-film transistors or a series connection of two sets of parallel connections of two thin-film transistors.