Patent ID: 7999762
Filing Date: 2011-08-16
Classification: G09G

Abstract:
1. A plasma display apparatus including a scan electrode, a sustain electrode and an address electrode, driven with a plurality of subfields which include at least one of a reset period, an address period and a sustain period in a frame, wherein a last sustain pulse of the previous subfield is applied to the sustain electrode, while a set up signal having a first voltage level period with a first voltage level of positive polarity and a voltage increasing period where a gradually increasing voltage value, to generate a set up discharge, is applied to the scan electrode during the reset period in at least one of the next subfields, wherein a second voltage level period of positive polarity and being a single pulse is applied to the sustain electrode when the set up signal is applied, and wherein the second voltage level period is overlapped with a part of the first voltage level period and a part of the voltage increasing period, wherein a voltage at the second voltage level is supplied later than a voltage at the first voltage level, wherein a quantity of light emitted by a discharge generated with the first voltage level is a half or less than a quantity of light emitted by a one time sustain discharge in the sustain period of the same subfield, and wherein no other voltage level period of positive polarity is applied to the sustain electrode before the second voltage level period.