Patent ID: 7961204

Claim:
A method of representing a gray scale for a plasma display panel comprising a plurality of discharge cells, the method comprising: dividing one frame into a plurality of subfields, each subfield comprising an address period for providing at least one address pulse and a sustain period for providing none or at least one sustain pulse; representing a first gray level utilizing N 1 subfield or subfields among the plurality of subfields in at least one of the plurality of discharge cells, N 1 being a natural number; and representing a second gray level utilizing N 2 subfield or subfields among the plurality of subfields in at least one of the plurality of discharge cells, the second gray level being higher than the first gray level, and N 2 being a natural number, wherein a difference between K 1 and K 2 is greater than a difference between N 1 and N 2 when N 1 is greater than N 2 , wherein K 1 is a number of sustain pulses utilized when representing the first gray level and is an integer equal to or greater than zero, and K 2 is a number of sustain pulses utilized when representing the second gray level and is an integer equal to or greater than zero.