Patent ID: 7408531
Filing Date: 2008-08-05
Classification: G09G

Abstract:
1. A plasma display device, comprising: a display panel with a plurality of display cells that is provided with a scan electrode, a sustain electrode, and a data electrode; and a drive circuit for applying a voltage to the scan electrode, the sustain electrode, and the data electrode based on display data, wherein a field is divided into one or more subfields for display, to at least one of the subfields, a priming period is provided to cause priming discharge to activate a charge state, and the drive circuit estimates a discharge start voltage for the display panel, changes a waveform of a voltage applied to at least one electrode of the scan electrode, the sustain electrode, and the data electrode between a first case with a first estimated value of the discharge start voltage and a second case with a second estimated value which is smaller than the first estimated value, and after the priming discharge, sets smaller a charge amount difference in the display cells between the first case and the second case than a difference in a case where no voltage waveform is changed.