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. 21, 1992
Filed:
Jun. 10, 1988
Applicant:
Inventors:
Sakae Someya, Sanwa, JP;
Ryuuzoh Nashimoto, Mobara, JP;
Hirofumi Suzuki, Mobara, JP;
Katsuhiko Yarita, Ichihara, JP;
Shinji Matsumoto, Mobara, JP;
Akira Sasano, Hinode, JP;
Hideaki Taniguchi, Mobara, JP;
Ryouji Oritsuki, Shirako, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
359 59 ; 359 54 ; 359 68 ; 359 87 ;
Abstract
There are disclosed various types of TFT active matrix liquid crystal display devices in which a pixel is divided into three parts, a capacitor is added to each pixel, light shielding is applied to each TFT, and the matrix is driven by a DC cancelling technique.