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. 24, 2012
Filed:
Nov. 28, 2007
Takahiko Origuchi, Osaka, JP;
Hidehiko Shoji, Osaka, JP;
Takahiko Origuchi, Osaka, JP;
Hidehiko Shoji, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A first ramp waveform rising from a first potential (Vi) to a second potential (Vi) is applied to a plurality of scan electrodes (SC) in a first half period of a setup period, and a third ramp waveform rising from a fifth potential (a ground potential) to a sixth potential (Vi, Vi') is applied to a plurality of sustain electrodes (SU) in a period, which is shorter than the first half period, within the first half period. A second ramp waveform dropping from a third potential (Vi) to a fourth potential (Vi) is applied to the plurality of scan electrodes (SC) in the second half period following the first half period, and a fourth ramp waveform dropping from a seventh potential (Ve) to an eighth potential (Vi, Vi′) is applied to the plurality of sustain electrodes (SU) in a period, which is shorter than the second half period, within the second half period. Then, a peak value of the third ramp waveform and a peak value of the fourth ramp waveform are changed based on a state of a plasma display panel.