Improvement of efficiency of ultraviolet radiation in a plasma display panel with a complex buffer gas

Discharge in an opposed discharge-type ac plasma display panel cell was analyzed with a one-dimensional fluid model. The present study used helium, neon, argon and some combination of them as a buffer gas which was added to xenon gas. Calculation was performed for a sequence of pulses of sustaining voltage after applying a writing voltage. The composition of Ne/Ar buffer gas with Ne : Ar = 1 : 3 gave the highest efficiency of Ultraviolet radiation. It was 1.6 times as large as the efficiency of simple neon buffer gas for 10%Xe. The efficiency increased with increasing fraction of xenon but the region of stable discharge decreased in size with increasing fraction of xenon.