No abstract

The WVOC (Wall Voltage Output Control) Curve is proposed as an analysis tool for understanding changes in the wall voltage of an AC-PDP. The WVOC can demonstrate changes in the output wall voltage (Vwout) relative to the perturbation pulse voltage under various slope conditions. This information can then be used to determine the desired Vwout or the perturbation pulse can be determined in order to set the desired input wall voltage (Vwin) for a subsequent perturbation pulse, as the Vwin control pulse. The Vwout characteristics of a subsequent perturbation pulse were also investigated relative to variations in the Vwin as controlled by the control pulse.As a result, perturbation pulses with weak and strong discharges with different slopes and Vwins had different firing voltages. In the case of the same Vwin, the firing voltage for a weak discharge (Vfw) was the same under all conditions. In contrast, the firing voltage for a strong discharge (Vfs) varied according to the slope of the perturbation pulse. Therefore, a rising perturbation pulse with a 1.5V/ slope was selected as the control pulse because the Vwout exhibited a linear relationship with the applied voltage, as such, no strong discharge occurred within the voltage range measured.In the case of adjusting the Vwin using the control pulse, the Vfs was only dependent on the Vwin, irrespective of the slope of the perturbation pulse. From these results, the WVOC curve would appear to be very useful in the development of a driving waveform for AC PDPs.