Abstract
In the current paper, we propose a new sustain waveform for dual light emission to improve the luminous efficiency of ac-plasma display panels (ac-PDPs). The proposed sustain waveform featuring dual discharge per sustain pulse has two rising steps, thus producing a second large discharge using the first small discharge generated in the first rising step. The resultant longer-sustained discharge can reduce power consumption without sacrificing luminance, thereby improving luminance efficiency by about 20%. Furthermore, the side ICCD image analysis reveals that owing to positive wall charges accumulating on the phosphor layer during the first small discharge, the ion incidence onto the phosphor layer can be suppressed during the second large discharge, thereby minimizing phosphor degradation during sustain discharge.
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