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:
Oct. 03, 2000
Filed:
Mar. 27, 1998
Kimio Anai, Hyogo-ken, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A liquid crystal display device is composed of a liquid crystal panel including a plurality of pixels and a plurality of data signal lines, and a panel control unit CNT for controlling the liquid crystal panel so that a selected one of a high vision signal image and an NTSC signal image can be displayed. The control unit includes an auxiliary video signal generating circuit for generating an auxiliary video signal representing an auxiliary image to be displayed in first and second remainder areas provided on both sides of a display area for displaying an NTSC signal image on the screen of the liquid crystal panel. The control unit further includes a circuit for driving the data signal lines according to results obtained by sampling the auxiliary video signal in a horizontal blanking period of an NTSC video signal and the NTSC video signal in a period excluding the horizontal blanking period from one horizontal scanning period of the NTSC video signal.