In the commercializing process of plasma display panels, enhancing the luminous efficiency of the panel to reduce the power consumption is one of the most imminent objectives. A novel sustaining waveform with higher luminous efficiency and its corresponding energy-recovery driving circuit are proposed. Under the experiment of a 42-inch plasma panel, the luminous efficiency is enhanced more than 30%. The proposed sustaining waveform can also be operated at the appropriate frequency around 180kHz to get the large margin of the sustaining voltage.
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