Patent ID: 8154542
Filing Date: 2012-04-10
Classification: G09G,H04N

Abstract:
1. A plasma display device comprising: a plasma display panel having a plurality of discharge cells, each discharge cell having a display electrode pair formed of a scan electrode and a sustain electrode; and a driving circuit driving the plasma display panel by dividing a field period into a plurality of sub fields, each sub field having an address period for selecting the discharge cell to emit light and a sustain period for allowing the discharge cell selected in the address period to generate a sustain discharge, wherein the driving circuit includes: a sustain pulse generating circuit having: a third switching element applying a voltage for reducing a potential difference between the display electrode pairs to the display electrode pairs, and wherein the sustain pulse generating circuit alternately applies a sustain pulse varying from the base potential to a potential causing a sustain discharge in the sustain period to the display electrode pairs and disposes a period for setting the display electrode pairs to the base potential between the sustain pulse for causing a final sustain discharge in the sustain period and a previous sustain pulse thereof.