Ramp Waveform Generating Circuit for Improving the Contrast Ratio in AC Plasma Display Panel

AC PDP의 Ramp 파형 개선에 따른 Contrast ratio 향상에 관한 연구

  • Lee, Sung-Hyun (Dept. of electrical Engineering, Pusan National University) ;
  • Kim, Dong-Hyun (Dept. of electrical Engineering, Pusan National University) ;
  • Kim, Young-Kee (Dept. of electrical Engineering, Pusan National University) ;
  • Heo, Jeong-Eun (Dept. of electrical Engineering, Pusan National University) ;
  • Shin, Joong-Hong (Dept. of electrical Engineering, Dong-Eui University) ;
  • Lee, Ho-Jun (Dept. of electrical Engineering, Pusan National University) ;
  • Park, Chung-Hoo (Dept. of electrical Engineering, Pusan National University)
  • Published : 2001.07.18

Abstract

The voltage controlled ramp waveform(VCR) has recently been used in the reset period prior to addressing for plasma display. However, in this paper, the current controlled ramp waveform(CCR) which may prevent the oscillation of gap voltage cause current growth and decrease the background luminance has been suggested. As a result, in case of CCR method, the contrast ratio was about 14% increased compared with VCR method, whereas the addressing and sustainin discharge characteristics of CCR method were same with those of VCR method.

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