Patent ID: 8400372
Filing Date: 2013-03-19
Classification: G09G,H04N

Abstract:
1. A plasma display device comprising: a plasma display panel having a plurality of discharge cells, each of the plurality of discharge cells having (i) a display electrode pair including a scan electrode and a sustain electrode and (ii) a data electrode, wherein one field period includes two types of subfield, one of the two types of subfield being an all-cell initializing subfield and the other one of the two types of subfield being a selection initializing subfield, wherein the all-cell initializing subfield has: wherein the selection initializing subfield has: wherein, in the setup period of the all-cell initializing subfield, an increasing ramp waveform voltage is applied to the scan electrodes, wherein the plasma display device further comprises: wherein the scan electrode driving circuit generates the ramp waveform voltage so that the maximum voltage of the ramp waveform voltage is made smaller when a predetermined image establishing a previously determined condition is displayed than when a normal image other than the predetermined image is displayed, and wherein the data electrode driving circuit, in the case when the predetermined image is displayed, applies a positive voltage, which is greater than a voltage applied to the data electrodes when the normal image is displayed, to the data electrodes while the ramp waveform voltage having the smaller maximum voltage is applied to the scan electrodes.