Patent ID: 7817109

Claim:
A plasma display apparatus, comprising: a Plasma Display Panel having a plurality of discharge cells, a driver circuit to drive the discharge cells based on a unit frame which is divided into a plurality of subfields; and a detector to detect whether random noise is in the unit frame, wherein, when detected random noise is included in the unit frame, a number of subfields in the unit frame is controlled, the number of subfields in the unit frame that includes detected random noise is smaller than when random noise is not detected in the unit frame, wherein a type of random noise detected by the detector is different from distortion generated by image motion, the apparatus further comprising: a controller to set an output gain value of image data in the unit frame to a first value when no random noise is detected in the unit frame, and to set the output gain value of the image data in the unit frame to a second value when random noise is detected in the unit frame.