A New Driving Method for Gray-scale Expression in an AC Plasma Display Panel

교류형 플라즈마 디스플레이 패널에서 계조표현을 위한 새로운 구동방식

  • 김재성 (인하대 공대 전기공학과) ;
  • 황현태 (인하대 공대 전기공학) ;
  • 서정현 (인천대 공대 전자공학) ;
  • 이석현 (인하대 공대 전기공학과)
  • Published : 2004.08.01


In this paper, a new gray scale expression method that divides the scan lines into multiple blocks is suggested. The proposed method can drive 16 sub-fields per 1 TV field in the panel with XGA ($1366{\times}768$) resolution. The on and off states of even subfields depend on the condition of odd subfields. The write address mode is used in the odd subfields, while the erase address mode is used in the even subfields. Because the ramp reset pulse is applied every 2 sub-fields, both the contrast ratio and the dynamic voltage margin are sufficiently obtained in comparison with previous AWD (Address While Display) methods. In realizing 16 subfields, shortening the scan time in the erase address period was important. The X bias voltage in the erase address period affected the minimum address voltage but did not the delay time of the address discharge. The delay time of the address discharge was affected by the address voltage and the time interval between the last sustain discharge and the scanning time. We also evaluated the dynamic false contour. New method shows an improved image quality in horizontal moving, but discontinuous lines were observed at the boundaries of each block in vertical moving


  1. Peter Dinh-Tuan Ngo, 'Charge Spreading and its Effect on AC Plasma Panel Operating Margins', IEEE Transactions on Electron Devices, vol ED-24 NO. 7, pp. 870-872, 1977
  2. K. C. Choi, 'Temporal Behaviors of the Charged and the Metastable Particles in an AC-PDPs', International Display Workshops(IDW), pp. 619-622, 1999
  3. H. Homma, 'Luminance Improvement of PDPs by an Extension of Light-Emission Duty to 90% with an HD-TV Capability', Society for Information Display(SID), pp. 285-288
  4. M. Ishii, 'Reduction of Data Pulse Voltage to 20V by Using Address-While-Display Scheme for AC-PDPs', Society for Information Display(SID), pp. 162-165
  5. T. Tokunaga, 'Development of New Driving Method for AC-PDPs High-Contrast, Low Energy Address and Reduction of False Contour Sequence 'CLEAR'', International Display Workshops(IDW), pp. 787-790, 1999
  6. S. Mikoshiba, 'Dynamic False Contours on PDPs-Fatal or Curable?', International Display Workshops(IDW), pp. 251-254, 1996
  7. M. Kasahara, 'New Drive System for PDPs with Improved Image Quality : Plasma AI', Society for Information Display(SID), pp. 155-158, 1999
  8. J. Ryoem, 'An Image Data Rearranged Sub-Field Method for Reducing Dynamic False Contours in PDPs', International Display Workshops(IDW), pp. 547-550, 1998
  9. T. Shigeta, N. Saegusa, 'Improvement of Moving-Video Image Quality on PDPs by Reducing the Dynamic False Contour', Society for Information Display(SID), pp. 287-290, 1998
  10. Tsutae Shinoda, 'Research & Development of Surface-Discharge Color Plasma Display Technologies,' International Display Research Conference Asia Display, pp. 1065-1070, 1998
  11. T. Shinoda, 'High Level Gray Scale for AC Plasma Display Panels Using Address-Display Period-Separated Sub-Field Method,' Trans. of IEICE C-2, no. 3, pp. 349-355, 1998
  12. Larry F. Weber, 'The Promise of Plasma Display for HD-TV,' Society for Information Display(SID), pp. 402-405, 2000
  13. International Display Workshops(IDW) Temporal Behaviors of the Charged and the Metastable Particles in an AC-PDPs K. C. Choi