Patent ID: 7012580

Claim:
A method for driving an AC (Alternating Current)-type plasma display panel having two pieces of insulating substrates including a first insulating substrate and a second insulating substrate both being faced each other, on said first insulating substrate of which a plurality of pairs of electrodes is mounted each pair being made up a scanning electrode and a sustaining electrode both being placed in parallel to each other and on said second insulating substrate of which a plurality of data electrodes is mounted each being placed so as to be orthogonal to both said scanning electrode and said sustaining electrode in which each of said scanning electrodes, said sustaining electrodes and said data electrodes is covered with a dielectric layer, said method including: a step of repeatedly setting periods in order of a scanning period, a sustaining period and an initializing period, during said scanning period of which a potential of each of said data electrodes is changed in a manner to correspond to video data for each of said scanning electrodes and said video data is written according to occurrence or non-occurrence of writing discharge between each of said scanning electrodes and each of said data electrodes, during said sustaining period of which sustaining discharge is repeated by repeatedly applying a sustaining pulse to display an image corresponding to said video data written during said scanning period, and during said initializing period of which a state arisen during said sustaining period is reset and initialized, wherein said initializing period has a wall charge adjusting period during which, when said sustaining discharge occurs immediately before a start of said initializing period, wall charge adjusting discharge whose intensity is lower than that of said sustaining discharge is made to occur between each of said scanning electrodes and each of said sustaining electrodes and a sustaining erasing period during which, after termination of said wall charge adjusting period, a difference in potential between each of said scanning electrodes and each of said sustaining electrodes gradually increases in a direction of a voltage having a polarity opposite to a potential difference between each of said scanning electrodes and each of said sustaining electrodes occurring at time of said wall charge adjusting discharge.