Transition of space charge to wall charge by control pulse after self-discharge in AC-plasma display panel

The transition of space charge to wall charge after self-discharge has been experimentally tested in an AC-plasma display panel (PDP) with a versatile driving simulator (VDS) system, in which arbitrary driving waveforms and s equences can be used. When the self-discharge occurs immediately after a hi gh voltage reset pulse is applied, a certain amount of space charge is gene rated in the PDP cell. By applying a suitable control pulse at this time, i t is found that these space charges can be converted into sufficient wall c harges for maintaining a sustain discharge without any writing pulse. Also, the saturated sustain peak current strongly depended on the control pulse condition in spite of the same sustain waveform. This means that the influe nce of the initial wall charge which was formed prior to the sustain period is continuously maintained throughout the sustain period.