Patent ID: 6642911
Filing Date: 2003-11-04
Classification: G09G

Abstract:
A method of driving a plasma display panel to display in gradation representation in accordance with a video signal, said plasma display panel having discharge cells, functioning as pixels, at intersections of a plurality of row electrodes corresponding to display lines with a plurality of column electrodes arranged to intersect said row electrodes, said method comprising the steps of:selectively producing a writing discharge only in discharge cells except for discharge cells serving to display a luminance level â€œ0â€  only in a first subfield of a plurality of subfields constituting one field display period in said video signal to initialize said discharge cells to a light emitting cell state; selectively producing an erasure discharge in said discharge cells remaining in said light emitting cell state in accordance with pixel data corresponding to said video signal only in one of the remaining subfields except for said first subfield to have said discharge cells transition to a non-light emitting cell state; and driving only said discharge cells in said light emitting cell state to emit light in each of said subfields a number of light emissions allocated thereto corresponding to a weighting factor applied to each of said subfields.