Patent ID: 6573878
Filing Date: 2003-06-03
Classification: G09G

Abstract:
A method of driving an ac-discharge PDP, in which said PDP has row electrodes and column electrodes that form pixels arranged in a matrix array, and a dielectric layer formed to cover said pixels;said method comprising the steps of: (a) successively applying scan pulses to said row electrodes while applying data pulses to said column electrodes according to a display signal in a scan period, thereby generating wall charge in said dielectric layer due to writing discharge; an amount of said wall charge in each of said pixels varying according to said display signal; (b) causing conversion discharge in a conversion period after said scan period, thereby decreasing the amount of said wall charge in said pixels; said conversion discharge being caused in a different state in each of said pixels according to the amount of said wall charge; and (c) applying sustain pulses to said row electrodes in a sustain period after said conversion period, thereby causing sustain discharge; said sustain discharge occurring in part of said pixels according to the state of said conversion discharge that has been caused in said conversion period, resulting in emission of light.