• Title/Summary/Keyword: Address discharge

Search Result 176, Processing Time 0.032 seconds

A New Driving Waveform for Stable Address Discharge in an Alternating Current Plasma Display Panel

  • Kim, Sung-Hwan;Seo, Jeong-Hyun;Lee, Seok-Hyun
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 2004.08a
    • /
    • pp.503-506
    • /
    • 2004
  • In this paper, we suggest a new driving waveform for stable address discharge in AC PDP without the reduction of contrast ratio. To analyze the influence of cross-talk between discharge and non-discharge cells and verify that proposed waveform shows a stable address discharge, we measured the address discharge delay time. The proposed waveform shows the reduction of the cross-talk and concurrently the improvement of address voltage margin compared with those of selective reset waveform having one reset period in 1TV-Field..

  • PDF

Study on Discharge Characteristics Using $V_t$ Close-Curve Analysis in ac PDPs

  • Cho, Byung-Gwon;Tae, Heung-Sik
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 2007.08b
    • /
    • pp.1185-1188
    • /
    • 2007
  • The address discharge characteristics by the various scan-low and common-bias voltages are investigated based on measured address discharge time lags and $V_t$ close-curve analysis. The scan-low voltages are changed under the same voltage difference between the X and Y electrodes during an address period. As the voltage difference between the scan and address electrodes is increased during an address period, the address discharge time lag is shortened but the background luminance is increased. It is found that the improved address discharge characteristics is caused by the effect of the higher external applied voltage during an address period than the accumulated wall charges during a reset period and the high background luminance can be prevented by applying an address-bias voltage during a rising-ramp period and low reset voltage.

  • PDF

Effect of Address Discharge Characteristics by Selective Reset Method in AC Plasma Display Panel (교류형 플라즈마 디스플레이에서 선택적 초기화 방법에 의한 기입 방전 특성의 영향)

  • Cho, Byung-Gwon
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
    • /
    • v.25 no.12
    • /
    • pp.1004-1008
    • /
    • 2012
  • The effect of address discharge characteristics by selective reset method is investigated to prevent the weakness of address discharge in the middle of a TV-field without increase of the black luminance. To reduce black luminance in AC PDP usually, the first subfield during one TV frame adopted the conventional rising ramp-reset waveform, whereas the other subfields adopted the subsidiary reset waveform without rising ramp type. As the wall charge for the address discharge was accumulated by only the rising ramp waveform during the first reset period, the wall charge on three electrodes was disappeared as time passed and the address discharge would be weakened in the rear subfields. To prevent a reduction of the address discharge characteristics without decrease the black luminance, the modified rising ramp reset waveform was adopted only in the sixth subfield. As a result, a modified driving method could improve the address discharge characteristics compared with selective reset driving scheme with almost the same black luminance.

High Speed Driving Technique in AC PDPs

  • Shin, Bhum-Jae
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 2007.08b
    • /
    • pp.1181-1184
    • /
    • 2007
  • The new self-priming addressing driving scheme was proposed to improve an address discharge time lag. It utilizes the priming effect maintaining the priming ramp discharge during an address period and the address discharge time lag is significantly improved. In this study, the basic characteristics of the priming ramp discharge are presented.

  • PDF

Effects of Address Electrode Width on Address Discharge Under Variable Ambient Temperature in AC-PDP

  • Jang, Soo-Kwan;Tae, Heung-Sik;Jung, Eun-Young;Ahn, Jung-Chull;Yoo, Min-Sun
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 2008.10a
    • /
    • pp.412-415
    • /
    • 2008
  • It is known that the address discharge delay time during an address period strongly depends on the wall charge leakage. It was observed that the wall charge leakage during an address period is related to both the address width and the ambient temperature. Accordingly, the effects of address electrode width on the address discharge and wall voltage variation during an address period were examined under variable temperatures.

  • PDF

Modified Driving Method for Reducing Address Time During Subfield Time in AC PDP (플라즈마 디스플레이 패널에서 부화면 시간동안 기입시간을 단축시키기 위한 수정된 구동파형)

  • Cho, Byung-Gwon
    • Journal of the Institute of Electronics and Information Engineers
    • /
    • v.52 no.1
    • /
    • pp.135-139
    • /
    • 2015
  • The address discharge time lags are investigated in each subfield time in AC plasma display panel and a modified driving waveform is proposed to reduce the address discharge time lag by applying different additional scan voltage under no misfiring discharge production. The weak plasma discharge in AC PDP is generated by applying high positive-going ramp waveform to the scan electrode during the first reset period and that induce the production of the priming particle and wall charge. Because the wall charge becomes the wall voltage in a cell, the wall plus external address voltage produce the address discharge. However, as the wall charge in a cell is gradually disappeared as time passed, the address discharge time in the subfield time for 1 TV frame is lagged. In the first subfield time, the address discharge is faster produced than the other subfield time because the wall charge are much remained by the high positive-going ramp voltage during the reset period in the first subfield time. Meanwhile, from the second to last subfield, the address discharge production time is gradually delayed due to the dissipation of the wall charge in a cell. In this study, the address discharge time lags are measured in each subfield time and the total address discharge time lags are shortened by applying the different additional scan voltage during the address period in each the subfield time.

Relationship between Image Retention and Time Lag in an AC PDP

  • Do, Yun-Seon;Jang, Cheol;Choi, Kyung-Cheol
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 2007.08a
    • /
    • pp.613-616
    • /
    • 2007
  • Characteristics of dark image retention and address discharge time lag were investigated simultaneously. It was found that reset waveforms with low black luminance did not guarantee lower image retention. Improved address discharge time lag due to modified reset waveforms similarly did not show improved image retention. The address discharge time lag and the image retention are in a trade-off relation.

  • PDF

High-Speed Characteristics of Plasma Display Panel using Priming Overlapping with Display Drive Method (표시기간 중첩 프라이밍 구동기술에 의한 플라즈마 디스플레이 패널의 고속구동특성)

  • Ryeom, Jeong-Duk
    • The Transactions of The Korean Institute of Electrical Engineers
    • /
    • v.56 no.11
    • /
    • pp.2004-2009
    • /
    • 2007
  • A new high-speed drive method for the plasma display panel is proposed. In this method, the address period is inserted for the rest period of the sustain pulses and the priming pulse is applied on the entire panel at the same time overlapping with the sustain period. The ramp shaped priming pulse can be made with a simple drive circuit in this technology and the stable sustain discharge can be induced even by a narrow scan pulse in help of the space charge generated from the address discharge. From the experiments, it is ascertained that the priming pulse hardly influences the sustain discharge. Moreover, the voltage margin of the sustain discharge is almost constant though that of the address discharge broadens with narrowing the scan pulse width. And, if the time interval between the scan pulse and the sustain pulse is within $6{\mu}s$, the voltage margin of the address and the sustain discharges are unaffected though the applied position of the scan pulse is changed. High-speed driving with the address pulse of $0.7{\mu}s$ width was achieved and the address voltage margin of 20V and the sustain voltage margin of 10V were obtained.

A Study on the Improvement of the Low Temperature Address Discharge Time Lag of High-Xe Content AC PDP (AC PDP의 저온에서 어드레스 방전 지연 시간 개선에 관한 연구)

  • Kim, Ji-Yong;Kim, Sun;Lee, Seok-Hyun;Lee, Jeong-Hae;Kim, Jun-Yeop
    • Proceedings of the KIEE Conference
    • /
    • 2005.07c
    • /
    • pp.2156-2159
    • /
    • 2005
  • ADS(Address Display Period Separation) driving method has been considered to be the most appropriate driving technique for AC PDP. ADS driving method is composed of reset, address, sustain and erase period. Therefore, a long time should be allocated to an address period, which results in a reduction of brightness. To realize a high luminance and high picture quality, it is necessary to high speed addressing. However, address discharge time lag increases as the temperature decreases, which can cause the misfiring and low picture quality In this paper, the electric field effect and priming particle effect are investigated in order to reduce the address discharge time lag at low temperature. Address discharge time lag was reduced effectively when the priming particles are provided.

  • PDF

Improvement of Address Discharge Characteristics Using Wall Charge on Common Electrodes in AC PDP (플라즈마 디스플레이 패널에서 공통전극에서의 벽전하를 이용한 기입방전특성의 향상)

  • Cho, Byung-Gwon
    • Journal of the Institute of Electronics and Information Engineers
    • /
    • v.50 no.3
    • /
    • pp.174-178
    • /
    • 2013
  • A modified driving waveform is proposed to improve the address discharge characteristics using wall charge on the common electrodes in plasma display panel. In the driving scheme of plasma display, after a reset period, the negative charge are accumulated on two front electrodes and positive wall charge are accumulated on the address electrode. As the address discharge during an address period is produced when the scan and address pulses are applied at the same time, negative charge on the scan electrodes and positive charge on the address electrodes are mainly used. On the other hand, as the voltage are only maintained without applying the waveform during an address period on the common electrodes, the wall charge is not used on the common electrodes. In this paper, the address discharge characteristics are investigated with changing pulse applying time and applied voltage amplitude on the common electrodes and consequently the producing time of an address discharge are shortened about 200 ns compared with the conventional driving waveform.