Patent ID: 8089426

Claim:
A method of driving a plasma display panel including a plurality of discharge cells for image display, wherein a field period includes a plurality of subfields, each subfield of the plurality of subfields including an initialization period, a writing period, and a sustain period, wherein the plurality of subfields of the field period includes (i) a subfield for performing an every-cell initialization operation, the every-cell initialization operation causing, in the initialization period of the subfield for performing the every-cell operation, an initial discharge in each of the plurality of discharge cells, and (ii) a subfield for performing a selective initialization operation, the selective initialization operation causing, in the initialization period of the subfield for performing the selective initialization operation, the initial discharge in any predetermined discharge cell of the plurality of discharge cells, wherein the method of driving the plasma display panel includes: performing the every-cell initialization operation in a subfield, of the plurality of subfields, of a low luminance in comparison with other subfields of the plurality of subfields, such that the field period includes, subsequent to the subfield in which the every-cell initialization operation is performed, another subfield of the low luminance; determining a subfield group, which includes at least one subfield of the plurality of subfields that is (i) for performing the every-cell initialization operation, and (ii) of the low luminance; in a sustain period of each subfield of the at least one subfield of the subfield group, setting a width of a first sustain pulse to be wider than a width of a second sustain pulse, and setting the width of the second sustain pulse to be wider than a width of a third sustain pulse and subsequent other sustain pulses; and setting a width of each first sustain pulse of each of the plurality of subfields that is subsequent to the subfield group to a same predetermined value, such that the predetermined value represents a width that is smaller than the width of the first sustain pulse of each subfield of the at least one subfield of the subfield group, and wherein, in the every-cell initialization operation, the initial discharge is performed using a ramp voltage or a wave form having a change degree of 0.1 V/μs to 10 V/μs.