Drive method of plasma display panel

A drive method of a plasma display panel by which a gradation display is performed by driving a plasma display panel in which a plurality of discharge cells each serving as a pixel are arranged, for each of a plurality of subfields constituting each field of an input video signal, wherein

• each of the subfields comprises an address process of setting each of the discharge cells into one mode from among a lighting mode and a quenching mode based on the input video signal, and a sustain process of causing an emission in only the discharge cell that has been set into the lighting mode, over a period corresponding to a brightness weight of the subfield;
• a discharge cell that assumes a black display state in a first field from among the first field and a second field that are adjacent in time and switches to a display state representing a brightness other than black in the second field is detected as a lighting transition cell based on the input video signal;
• and
• when the lighting transition cell is detected, at least one drive is executed from among a first forced lighting drive in which the lighting transition cell is forcibly set into the lighting mode only in the address process of a predetermined subfield from among the subfields, regardless of the brightness level indicated by the input video signal, in the first field, and a second forced lighting drive in which an adjacent discharge cell that is adjacent to the lighting transition cell is forcibly set into the lighting mode only in the address process of the predetermined subfield, regardless of the brightness level indicated by the input video signal, in the second field.