Patent ID: 7477213

Claim:
A plasma display device comprising: a plasma display panel including discharge cells having at least two electrodes including a first electrode and a second electrode; and a driver for applying a sustain discharge pulse to at least one of the first electrode and the second electrode during a sustain period such that a voltage difference between the first electrode and the second electrode alternates between a positive voltage and a negative voltage, wherein the sustain discharge pulse has a frequency f defined by: μ i ⁢ Vs π ⁢ ⁢ d 2 > f ≥ { ( D ⁢ ⁢ μ i ⁢ Vs π ⁢ ⁢ d 2 ) - 1 + k ⁡ ( Tr + Tf ) + 2 ⁢ s } - 1 where: Dμ i is mobility of Xe ions of the discharge gases injected into the discharge spaces of the discharge cells, Vs is the absolute value of the positive voltage or the negative voltage, d is a gap distance between the first electrode and the second electrode, Tr and Tf are rising time and falling time of the sustain discharge pulse, respectively, k is a period of time during one cycle of the sustain discharge pulse determined by the rising time and the falling time of a period of time when an absolute value of the voltage difference between the first electrode and the second electrode is not Vs, and s is a period of time during one cycle of the sustain discharge pulse other than a period of time corresponding to the rising time and the falling time and a period of time when an absolute value of the voltage difference between the first electrode and the second electrode is Vs.