Patent ID: 7145522
Filing Date: 2006-12-05
Classification: G09G

Abstract:
1. A plasma display device comprising a plasma display panel including at least a plurality of discharge cells each having at least an electrode pair for generating a sustain discharge for a light emission display, wherein a sustain pulse voltage, which is applied between said electrode pair in a respective one of said plurality of discharge cells to generate the sustain discharge, comprises at least a first-waveform voltage and a second-waveform voltage, and said first-waveform voltage is composed of one of (1) a combination of a first portion having a major portion of a first voltage and a second portion having a major portion of a second voltage higher than said first voltage and (2) a second portion having a major portion of said second voltage, said second-waveform voltage is composed of a third portion having a major portion of a third voltage and a fourth portion having a major portion of a fourth voltage higher than said third voltage, said first-waveform voltage and said second-waveform voltage satisfy the following conditions (i) and (ii): (i) at least one of the following inequalities is satisfied: said third voltage>said first voltage, or a time duration of said third portion, T (ii) at least one of the following inequalities is satisfied: said fourth voltage>said second voltage, or a time duration of said fourth portion, T wherein said first and third voltages are established by applying a power supply voltage and ground potential to electrodes composing the electrode pair.