Patent ID: 6646625
Filing Date: 2003-11-11
Classification: G09G

Abstract:
A method for driving a plasma display panel wherein discharge cells are formed corresponding to pixels at respective intersections between a plurality of row electrodes disposed in an array for respective scan lines and a plurality of column electrodes disposed in an array crossing said row electrodes, comprising the steps of:executing, in each of N (N being a natural number) subfields forming a display period of one field, a pixel data writing step for setting each of said discharge cells to either one of a non-light-emitting cell or a light-emitting cell respectively in response to pixel data, and a light-emission sustaining step for allowing only discharge cells set to said light-emitting cell to emit light during a light-emission period corresponding to each of weights assigned to said sub-fields respectively, whereby allowing the plasma display panel to produce a plurality of grayscale levels, wherein in said light-emission sustaining step the light-emission period of a subfield of the subfields which would be at a predetermined place if the subfields are arranged in order of weight is changed field by field or frame by frame and wherein a luminance of a K (K being a natural number) th grayscale level of a field or frame is set inbetween a luminance of a Kâˆ’1 th grayscale level and a luminance of a K th grayscale level in another field or frame which has different weights of the light emission periods of the subfields.