Improvement of Luminance and Luminous Efficacy in Mid-gap AC Plasma Display Panels

중간간격을 갖는 교류형 플라즈마 디스플레이 표시기의 효율향상을 위한 연구

  • 최낙원 (인천대 공대 전자공학과) ;
  • 민충식 (인천대 공대 전자공학과) ;
  • 정동철 (호서대 디스플레이공학부) ;
  • 서정현 (인천대 공대 전자공학과)
  • Published : 2009.05.01

Abstract

In a surface type ac PDP having $200{\mu}m$ gap between the surface electrodes, the luminous efficacy has a reciprocal dependence on the sustaining frequency. The discharge current flowing to the address electrodes are measured to investigate the phenomena and spectral intensity from visible light to infra red is measured to verify phosphor saturation with the frequency. Experiments show the discharge between the address and surface electrodes deteriorates the efficacy in high sustaining frequencies. Pulse width modulation is introduced to improve the efficacy. In optimum conditions, we obtained 1.99lm/w and 1.79lm/w at 200kHz and 250kHz, respectively.

Keywords

Mid-Gap;Surface Discharge;PDP

References

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