Simulations studies on influence of He concentration on discharge of alternating current plasma display panels in He-Ne-Xe mixture

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Abstract

With recent experiments to add He gas to the conventional Ne-Xe discharge gas mixture for high luminous efficiency plasma display panels, we have performed simulations on a coplanar structured alternating current plasma display panel sustained in the He-Ne-Xe gas mixture, by using the two-dimensional fluid model simulator. As the He concentration increases, luminance and luminous efficiencies increase but power consumption decreases, which agrees well with the recent experimental findings. He atoms increase the number of Xe*(P23) in the excited state and thus, the dimer emission is increased while the resonant line is reduced with the He content. As a result, the total vacuum ultraviolet emission is increased and higher luminance and higher luminous efficiency can be obtained. The enhanced mobilities of the ions in the gas mixture by adding He gas to the mixture also play an important role in increasing luminous efficiency.

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