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:
Mar. 27, 2001
Filed:
Oct. 08, 1999
Masayuki Ohta, Mobara, JP;
Masahiro Ishi, Mobara, JP;
Kikuo Ono, Mobara, JP;
Nobuyuki Suzuki, Mobara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A liquid crystal display device can realize a broad visual field angle comparable to a cathode ray tube and produce a high brightness and a high image quality, with low power consumption and a narrow frame. To achieve these features, in an active matrix system liquid crystal display device, a counter electrode and a pixel electrode are linearly formed so as not to flatly overlap each other, thus enabling generation of an electric field parallel to the substrate surface, and an insulating film having a specific dielectric constant not greater than 4 is formed on a drain line, thus forming the counter electrode on the insulating film to cover the drain line.