한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
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Dual-Slope Ramp Reset Waveform to Improve Dark Room Contrast Ratio in AC PDPs

  • Lim, Jae-Kwnag (School of Electronic and Electrical Engineering, Kyungpook National University) ;
  • Cho, Byung-Gwon (School of Electronic and Electrical Engineering, Kyungpook National University) ;
  • Tae, Heung-Sik (School of Electronic and Electrical Engineering, Kyungpook National University)
  • Published : 2005.07.19
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Abstract

A new dual-slope ramp (DSR) reset waveform is proposed to improve the dark room contrast ratio in AC-PDPs. The proposed reset waveform has two different voltage slopes during a ramp-up period. The first voltage slope is lower than the conventional ramp voltage slope, causing a reduction in the background luminance, whereas the second voltage slope is higher than the conventional ramp voltage slope, causing an increase in the background luminance. Thus, a bias voltage is also applied during the second voltage-slope period to adjust the background luminance and address discharge characteristics. As a result, the proposed dual-slope reset waveform can lower the background luminance, thereby improving the high dark room contrast ratio of an AC-PDP without reducing the address voltage margin

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