Improving luminous efficiency of AC-type plasma display panels by adjusting the state of sustaining discharges in the sustaining period

The effect of self-erase discharge on the luminous efficacy of alternating current plasma display panels

“…Lo et al 19 reported that the decreasing rate of the luminance is smaller than that of the power consumption when there are self-erase discharges between the sustain electrodes that also generate visible light output and consequently improve luminous efficacy. To utilize this phenomenon in the real operation of ac PDPs, the luminous efficacy improvement must appear in the sustain voltage margin.…”

“…There are some approaches to applying sustain waveforms that induce self-erase discharges in the static voltage margin. [19][20][21][22][23][24] Jeong et al, 20 after measuring the wall charge distribution, reported the real operation condition of ac PDPs: when the address electrode is grounded, the self-erase discharge occurs mainly between the sustain and address electrodes. Thus, the luminance and luminous efficacy show their maxima at voltages much lower than those values of the case of the address electrode floated as can be seen from Fig.…”

“…9,10,16,17 Also, researchers have suggested several modified driving waveforms taking advantage of the self-erase discharge characteristics of PDPs to improve luminous efficacy. [19][20][21][22][23][24] Lo et al 19 reported that the self-erase discharge induced between coplanar electrodes and a floating address electrode by applying higher voltage to coplanar electrodes can result in an increase in luminous efficacy with decreased consumed power. Also the luminous efficacy also improved by applying short pulses to the address electrode increasing the self-erase discharge intensity in the conventional small gap structure with a low Xe contents gas mixture condition.…”