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:
Nov. 25, 2003
Filed:
Aug. 23, 2001
Minoru Takeda, Takatsuki, JP;
Shinji Masuda, Ibaraki, JP;
Matsushita Electric Industrial Co., Ltd., Osaka-fu, JP;
Abstract
To provide a PDP display device and a drive method which use a set-up pulse having a portion that drops in voltage at a rate of 2V/&mgr;sec or more, whereby the occurrence of discharge errors in a sustain period can be suppressed even when wall charges are not sufficiently erased in an erase period and excess wall charges remain on some or all electrodes in a set-up period. To this end, the drop portion of the set-up pulse applied to a scan electrode group is set after a pulse applied to a sustain electrode reaches a voltage which does not cause a discharge between the sustain and scan electrodes. As a result, the occurrence of discharge errors in the sustain period is suppressed, without prolonging the set-up period.