Discharge characteristics and low-voltage driving of high-Xe-content PDPs

摘要

High-Xe-content PDPs attain improved luminous efficiency, but with sacrifices of higher sustain and address voltages and slower discharge build-up. By examining PDPs with 3.5-100%-Xe content, it was revealed that space-charge priming as well as wall-charge accumulation are effective in obtaining low-voltage and high-speed operation. In addition, it was found that the effectiveness is emphasized for higher-Xe-pressure PDPs. Tn this respect, erase addressing is more favorable than write addressing, especially for high-Xe-pressure PDPs. The formative time lag of the discharge and diffusion/drift of the space charges are shorter for high Xe content. In this respect, high-Xe-content PDPs have a potential for highspeed addressing, if driven adequately. The use of space-charge priming, however, is limited by the duration between the priming and scan pulses. Accumulation of wall charges is limited by ignition of a self-erase discharge with which all the wall charges are dissipated. Although the highest efficiency and luminance are attained with a 100%-Xe panel, the optimum Xe gas content, considering the sustain pulse voltage and drive voltage margin, would be 70% Xe + Ne.