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:
May. 16, 2000
Filed:
May. 08, 1998
Applicant:
Inventors:
Tetsuya Sakaedani, Kanagawa-ken, JP;
Takahisa Amemiya, Kanagawa-ken, JP;
Midori Suzuki, Kanagawa-ken, JP;
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
345 92 ; 345211 ; 345214 ;
Abstract
An afterimage occurring on a liquid crystal display is eliminated at the time of turning off the system power with an inexpensive circuit construction, without the need for reserving a special power supply. The afterimage continues to be displayed for a certain period of time after the turning-off of the power supply, and is eliminated by the load capacitance processed by liquid crystal display elements in a liquid crystal display panel.