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Improvement in the luminous efficiency using ramped-square sustain waveform in an AC surface-discharge plasma display panel

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4 Author(s)
Tae, Heung‐Sik ; Sch. of Electron. & Electr. Eng., Kyungpook Nat. Univ., Taegu, South Korea ; Ki-Duck Cho ; Sang-Hun Jang ; Kyung Cheol Choi

This paper proposes a new sustain waveform to improve the luminous efficiency of an AC plasma display panel (AC-PDP). The new sustain waveform is a superimposed waveform, which adds a ramp-waveform to a square-waveform, and has an increasing voltage slope between the rising and falling edge. This waveform can induce a longer-sustained discharge at the rising edge plus a self-erasing discharge at the falling edge, thereby improving the luminous efficiency, When compared with the conventional square sustain waveform, the proposed sustain waveform with a 9.3 V/μs voltage slope achieved a 65% higher luminous efficiency in a 4-in AC-PDP test panel even at a low frequency (62 kHz)

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Electron Devices, IEEE Transactions on  (Volume:48 ,  Issue: 7 )