Patent ID: 7719487
Filing Date: 2010-05-18
Classification: G09G

Abstract:
1. A method of driving a plasma display panel having a plurality of cells, each cell having first and second main electrodes forming an electrode pair and generating a surface discharge, and an address electrode opposing the first and second main electrodes, said method comprising: displaying one frame with gradation by a plurality of subfields, at least a first subfield and a second subfield of the plurality of subfields including a plurality of sustain pulses applied to the first main electrode and the second main electrode alternately in a sustaining period, said displaying one frame further comprising: applying to the first main electrode a last of the pulses that are being applied to the first main electrode and the second main electrode in the sustaining period of the first subfield, applying to the second main electrode a last of the pulses that are being applied to the first main electrode and the second main electrode in the sustaining period of the second subfield, and in address preparation periods subsequent to the sustaining period of the first subfield and the second subfield, applying a first pulse of one polarity having an absolute value of an applied a voltage increasing with time and applying a second pulse of a reverse polarity with respect to that of the first pulse and having an absolute value of an applied voltage waveform increasing with time.