Abstract

Computer simulation was carried out to obtain a better understanding of the discharge characteristics of a plasma display panel (PDP). We calculated the characteristics of the microdischarge in a DC-type cell filled with a mixture of He and Xe gases using a time-dependent and one-dimensional fluid model simulation including the back-diffusion effect of secondary electrons from the cathode due to collisions with gas molecules. The simulation was conducted under local field approximation (LFA) for electrons, four kinds of ions, and seven kinds of excited species, with consideration of the absorption and reemission of imprisoned resonant radiation, and the wall loss at the barrier ribs. Under the conventional conditions of the cell, the sparking voltage was 276V with secondary electron yield γ in vacuum which increased to 294V corresponding to the decrease of yield γ' in gas. The peak currents with γ and γ' in the pulse discharge were 104μA and 72μA, respectively. The characteristics of vacuum ultra-violet (VUV) rays and the luminous efficiency were also investigated.

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