Patent ID: 8125500

Claim:
Apparatus for driving a plasma display panel, including: brightness/contrast control means for receiving video input data, for modifying the video levels of the video input data in accordance with external adjustment data and for outputting modified video data; first power measurement means for measuring a power level of said modified video data and for supplying a first video data power level; second power measurement means for measuring a power level of said video input data and for supplying a second video data power level; generator means for generating a third video data power level between said first video data power level and said second video data power level as long as the second video data power level is higher than the first video data power level, or for generating the third video data power level equal to the larger one of said first and second video data power levels; and data processing means for calculating the maximum number of sustain pulses per frame applicable to said modified video data on the basis of said third video data power level and for controlling the display of said modified video data on said plasma display panel respectively.