• Title/Summary/Keyword: auxiliary pulse

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Reciprocal Sustain and Auxiliary Pulse Waveforms Applied to an AC PDP with an Auxiliary Electrode

  • Choi, Kyung-Cheol;Lee, Sung-Min;Choi, Chung-Sock;Jang, Cheol
    • 한국정보디스플레이학회:학술대회논문집
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    • 2008.10a
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    • pp.1543-1546
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    • 2008
  • Modified pulse waveforms were applied to an AC plasma display panel with an auxiliary electrode in order to improve the operation voltage margin. Reciprocal sustain pulse waveforms and modified auxiliary pulse waveforms were applied to the sustain and auxiliary electrode, respectively. During the sustain period, the influence of the address electrode on the luminous efficacy of long-coplanar gap discharges was mitigated by application of reciprocal sustain pulse waveforms. Modified auxiliary pulse waveforms maintained the high efficacy obtained from the AC PDP with an auxiliary electrode. The proposed reciprocal sustain and modified auxiliary pulses waveforms can induce stable discharges in long-coplanar gap discharges and can control wall charges with a wider auxiliary pulse voltage margin, thereby enhancing the luminous efficacy of the AC PDP with an auxiliary electrode.

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Effect of Auxiliary Address Pulse on Face-to-face Sustain Electrode Structure in AC-PDP

  • Kim, Bo-Sung;Tae, Heung-Sik
    • 한국정보디스플레이학회:학술대회논문집
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    • 2007.08a
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    • pp.605-608
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    • 2007
  • The discharge characteristics of the face-to-face sustain electrode structure employing auxiliary address pulse are investigated under a sustain driving frequency of 20 kHz and various auxiliary address pulse widths (500 ns, $1{\mu}s$, $2\;{\mu}s$) in the 6-in. test panel (42-in. Full HD grade) with a pressure of 450 Torr and a 4 % Xe-content. The luminance and the luminous efficiency at the auxiliary address pulse width of 500 ns are improved more than these of $1\;{\mu}s$ and $2\;{\mu}s$. At the auxiliary address pulse width of 500 ns, the luminous efficiency shows about 0.96 lm/W at the auxiliary pulse of 90 V and the sustain voltage of 260 V.

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Effects of Various Sustain Waveforms on Discharge Characteristics under High Xe Gas Mixture in AC-PDP

  • Park, Dong-Hyun;Cho, Byung-Gwon;Tae, Heung-Sik
    • 한국정보디스플레이학회:학술대회논문집
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    • 2005.07b
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    • pp.1237-1240
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    • 2005
  • The effects of various sustain waveforms on the discharge characteristics, such as discharge current waveform, IR waveform, luminance, luminous efficiency, power consumption, and static margin are investigated under high Xe (20%) gas mixture at 200 kHz. The four types of sustain waveforms, such as non-overlapped sustain waveform without auxiliary pulse, non-overlapped sustain waveform with auxiliary pulse, overlapped sustain waveform without auxiliary pulse, overlapped sustain waveform with auxiliary pulse, are examined intensively. As a result, the overlapped sustain waveform with auxiliary pulse shows the best discharge characteristics under high Xe (20%) gas mixture at 200 kHz.

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Auxiliary Address Pulse Driving Scheme for Improving Luminance and Luminous Efficiency in 42-inch WVGA Plasma Display Panel

  • Park, Ki-Hyung;Lee, Eun-Cheol;Cho, Ki-Duck;Tae, Heung-Sik
    • Journal of Information Display
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    • v.5 no.1
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    • pp.16-21
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    • 2004
  • The effects of an auxiliary address pulse driving scheme, in which an auxiliary short pulse is applied to the address electrode during a sustain-period, were examined under the various image patterns of the 42-inch WVGA ac-PDP. When the auxiliary address pulse driving scheme was applied, the luminance of the red, green and blue cells were measured respectively. And the luminance, luminous efficiency, and current were measured under the full-white pattern of the 42-inch ac-PDP. As a result, the luminance of blue cells was improved approximately by 17 %, whereas the luminous efficiency of the full-white pattern was improved approximately by 34 % without a misfiring discharge in comparison with conventional driving scheme.

Effect of auxiliary electrode on the discharge characteristics in AC PDP with long sustain-gap

  • Park, Sang-Dae;Lee, Seung-Hun;Shin, Nam-Hoon;Lee, Kyo-Sung;Park, Sung-Yun;Kim, Sang-Ho;Shin, Bhum-Jae;Choi, Kyung-Cheol
    • 한국정보디스플레이학회:학술대회논문집
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    • 2004.08a
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    • pp.109-112
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    • 2004
  • The effect of auxiliary electrode on the discharge characteristics in AC PDP with long sustain-gap was investigated. The auxiliary electrode was placed between scan and common electrode. When the pulse was applied to the auxiliary electrode during sustain period, the luminance of Ne + 13%Xe gas-mixture discharge increased and the discharge current decreased. The auxiliary pulse plays a role of improving electron excitation efficiency. When the auxiliary pulse was applied during address period, the address discharge time lag of Ne + 13%Xe gas-mixture could be reduced remarkably.

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Characteristics of microplasma modes in a plasma display with an auxiliary electrode

  • Kim, Seung-Hun;Mun, Jeong-Hun;Choi, Kyung-Cheol
    • 한국정보디스플레이학회:학술대회논문집
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    • 2007.08a
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    • pp.578-581
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    • 2007
  • Microplasma modes generated in a display cell with an auxiliary electrode were investigated in accordance with various coplanar-gaps and plategaps. At plate-gaps shorter than the coplanar-gap, the mode transition voltage of the auxiliary pulse increased with an increase in the coplanar-gap. At longer plate-gaps, the mode transition voltage of the auxiliary pulse decreased with an increase in the coplanar-gap.

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A New Single Sustain Waveform with Auxiliary Address Pulse in ac PDP

  • Park, Woong-Hee;Lim, Hyun-Muk;Lee, Jun-Young;Kang, Jung-Won
    • 한국정보디스플레이학회:학술대회논문집
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    • 2008.10a
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    • pp.392-395
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    • 2008
  • To improve the luminance in ac PDP, a new single sustain waveform with auxiliary address pulse is proposed. The new single sustain waveform was examined with 2 dimensional fluid codes and related experiments were performed with 42-inch XGA PDP module. At the same sustain level (= 180 V), the new waveform showed 3.6 times higher IR emission than the general waveform without auxiliary address pulse.

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Auxiliary Address Pulse Driving Scheme for Improving Luminance and Luminous Efficiency in 42-inch WVGA Plasma Display Panel

  • Park, Ki-Hyung;Lee, Eun-Cheol;Cho, Ki-Duck;Tae, Heung-Sik
    • 한국정보디스플레이학회:학술대회논문집
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    • 2003.07a
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    • pp.329-332
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    • 2003
  • The effects of an auxiliary address pulse driving scheme, in which an auxiliary short pulse was applied to the address electrode during a sustain-period, was examined under the various image patterns of the 42-inch WVGA ac-PDP. When the auxiliary address pulse driving scheme was applied, the luminance of the red, green and blue cells were measured respectively. The luminance, luminous efficiency and current were measured under the full-white pattern of the 42-inch ac-PDP. As a result, the luminance of blue cell was improved approximately by 17 %, whereas the luminous efficiency of the full-white pattern was improved approximately by 34 % without a misfiring discharge in comparison with conventional driving scheme.

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Sustain Discharge Mode Assisted by Various Auxiliary Pulses in AC PDP

  • Cho, Byung-Gwon;Tae, Heung-Sik;Chien, Sung-Ii
    • 한국정보디스플레이학회:학술대회논문집
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    • 2003.07a
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    • pp.113-116
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    • 2003
  • The sustain discharge mode using various auxiliary pulses was proposed to improve both the luminance and luminous efficiency of ac-plasma display panel (ac-PDP). It was found that the various auxiliary pulses, which were applied at the rising and falling time of the sustain pulse, played a role in strengthening both the main and self-erasing discharges. As a result, the sustain waveforms with auxiliary pulse improved both the luminance of 23 % and the luminous efficiency of 36 %, when compared with the conventional sustain waveform without auxiliary pulse.

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The 3- dimensional analysis for the discharge of PDP according to the pulse width of voltage applied to the address electrode during sustain period (Sustain 구간중 Address 전극에 인가되는 전압 펄스 폭에 따른 3차원 방전형상 분석)

  • Kwon, Hyoung-Seok;Choi, Hoon-Young;Lee, Seung-Gol;Lee, Seok-Hyun
    • Proceedings of the KIEE Conference
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    • 2002.07c
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    • pp.1830-1833
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    • 2002
  • We measured 3-dimensional temporal behavior of the light emitted from AC plasma display panel(PDP) at various auxiliary voltage pulse width supplied to the address electrode in sustain period using scanned point detecting system. In the case of applying an auxiliary address voltage pulse, the light emission starts at the inner edges of the cathode so the larger discharge volume toward address electrode can be obtained compared with the normal sustain discharge. Especially, when the auxiliary voltage pulse width is the $2{\mu}s$, the maximum luminance and long emission time can be obtained.

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