• 제목/요약/키워드: PDP cell

검색결과 179건 처리시간 0.025초

AC PDP의 addressing time과 유전체 및 Barrier Rib 높이와의 상관관계 (The relationship between addressing time and dielectric layer, barrier rib hight)

  • 박정태;박차수;송기동;박정후;조정수
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2000년도 하계학술대회 논문집 C
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    • pp.1824-1826
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    • 2000
  • Up to date, the dual scanning method has been adopted to decrease address-ing period in AC PDP. In this case, addressing period can be reduced, but the driving circuit cost should be increased. In this study, to increase addressing speed we have studied the relationship between addressing speed and cell structure. That is to say, we varied the thickness of dielectric layer on the front glass, the thickness of white back and the height of barrier rib on the rear glass. So, we found that the addressing time was decreased 4% with decreasing 5um thickness of dielectric layer on the front glass and 2um thickness of white back on the rear glass. Also in case of decreasing the height of barrier rib, addressing time was decreased about 4% per 10um.

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AC PDP의 경사형 Address 전압 인가 방식에 의한 오방전 보상에 관한 연구 (A study on the compensation of misfiring by the method of ramp address voltage in AC PDP)

  • 김준연;이상진;권병대;김동현;이호준;박정후
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2002년도 춘계합동학술대회 논문집
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    • pp.149-152
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    • 2002
  • If the ambient temperature rises for AC PDP, some of the discharge cells are turned off because of the misfiring during address period. Particularly, the misfiring of the 'last scan line is more serious than that of the first. In order to compensate the misfiring in such that case, different addressing voltage is applied at each cell such as progressively increasing pulse voltage instead of constant one. As a result, the addressing time and discharge charge of the last scan line have become similar to those of the first scan line and the phenomenon of misfiring has disappeared.

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Closed-Cell Type Barrier Ribs using Molds Prepared by Inclined UV Lithography

  • Kim, Ki-In;Kim, Yong-Seog
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2004년도 Asia Display / IMID 04
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    • pp.571-574
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    • 2004
  • Symmetric closed-cell type barrier ribs of PDP were formed by capillary molding process using molds prepared by inclined UV lithography process. The effects of inclining angle of barrier ribs on the sintering shrinkage and luminance of panel were examined. The results indicate that the barrier ribs of inclined morphology affect the sintering shrinkage and luminance efficiency significantly.

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AC PDP(Plasma Display Panel)의 방전 특성 해석

  • 황기웅;정희섭;서정현
    • 한국진공학회:학술대회논문집
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    • 한국진공학회 1997년도 제13회 학술발표회 논문개요집
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    • pp.173-176
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    • 1997
  • A numerical analysis of the micro-discharge in an AC pplasma dispplay cell has been made using time-deppendent, 2-dimensional multi-fluid equations to understand the discharge pphysics of He-Xe discharge. The time deppendent distribution of the electron tempperature, densities of electrons, various ions and excited sppecies, and the effects fo the wall charge accumulated on the dielectric surface are obtained and comppared with the results of direct observation of time deppendent behavior of VUV and visible sppectra from single discharge cell observed using a gated, image intensified CCD to elucidate the discharge physics.

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Observation of the Spatiotemporal Variation of Wall Charge Distribution during Reset Period in an ac POP cell

  • Jeong, Dong-Cheol;Whang, Ki-Woong
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2003년도 International Meeting on Information Display
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    • pp.756-759
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    • 2003
  • We measure the spatiotemporal wall charge distributions on sustain and address electrodes during reset period in an ac PDP cell using the longitudinal electro-optic amplitude modulation method. We apply several reset waveforms like as ramp, exponentially growing and high voltage pulse, and compare the wall charge characteristics on address electrode as well as sustain electrodes for each reset waveforms.

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반응성 스퍼트링으로 형성된 ITO의 유전채 소성에 따른 특성변화 (The Property Change of ITO Prepared by Reactive R.F. Sputtering in POP manufacturing Process)

  • 남상옥;지성원;손제봉;허근도;조정수;박정후
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1997년도 하계학술대회 논문집 C
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    • pp.1411-1413
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    • 1997
  • The thin film that is electrically conductive and optically transparent is called conductive transparent thin film. ITO(Indium-Tin Oxide) which is a kind of conductive transparent thin film has been widely used in solar cell, transparent electrical heater, selective optical filter, FDP(Flat Display Panel) such as LCD (Liquid Crystal Display), PDP(Plasma Display Panel) and so on. Especially in PDP, ITO films is used as a transparent electrode in order to maintain discharge and decrease consumption power through the improvement of cell structure. In this study, we prepared ITO by reactive r.f. sputtering with indium-tin(Sn wt 10%) alloy target instead of indium-tin oxide target. The ITO films deposited at low temperature $150^{\circ}C$ and 8% $O_2$ partial pressure showed about $3.6{\Omega}/{\square}$. At the end of firing, the resistance of ITO was decreased, the optical transparence was improved above 90%.

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The Effect of Dielectric Thickness and Barrier Rib Height on Addressing Time of Coplanar ac PDP

  • Lee, Sung-Hyun;Kim, Young-Dae;Shin, Joong-Hong;Cho, Jung-Soo;Park, Chung-Hoo
    • Journal of KIEE
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    • 제11권1호
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    • pp.41-45
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    • 2001
  • The addressing time should be reduced by modifying cell structure and/or driving method in order to replace the dual scan system by single scan and increase the luminance in large ac plasma display panel(PDP). In this paper, the effects of the dielectric layer thickness and the barrier rib height on the addressing time of ac PDP are investigated. It is found out that the addressing time was decreased with decreasing thickness of dielectric layer on the front glass and thickness of white dielectric layer on the rear glass. The decreasing rate were 160ns/10${\mu}{\textrm}{m}$ and 270nsd/10${\mu}{\textrm}{m}$, respectively. Also in case of decreasing the height of barrier rib, addressing time was decreased at the rate of 550ns/10${\mu}m$.

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AC PDP에서 1차원 수치해석을 통한 방전 특성 연구 (An Analysis on the Discharge Characteristics through 1-D Numerical Simulation in an AC PDP)

  • 이주희;서정현;이석현
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2003년도 추계학술대회 논문집 전기물성,응용부문
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    • pp.220-222
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    • 2003
  • In this paper, we analyze on the discharge characteristics through 1-D simulations in an at plasma display panel discharge cell. The model is based on a Poisson' equation, continuity and drift-diffusion equation. Results are presented in a 95% neon, 5% xenon gas mixture, for a gap length of 100us and a gas pressure of 400Torr at ambient temperature. Results for other gap length are also discussed. As a result, an increase of the gap cause increase of luminous efficiency but with larger sustaining voltage.

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광학적인 방법에 의한 플라즈마 디스플레이 패널의 3차원 광 방출 측정과 분석 (The Measurement and Analysis of Three-Dimensional Light Emitted from Plasma Disp1ay Panel by Optica1 Method)

  • 최훈영;이석현;이승걸
    • 대한전기학회논문지:전기물성ㆍ응용부문C
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    • 제51권1호
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    • pp.31-38
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    • 2002
  • We measured a 3-dimensional images of the light emitted from plasma display panel(PDP) by using newly proposed scanned point detecting system. In the panel without phosphor, as we scan from the rear glass to the front glass, the detected light intensity increases and the light intensity detected in the inside edge of the ITO electrodes shows the stronger intensity than others. The light intensity detected between the barrier ribs shows the largest value of brightness. Also, as the sustain voltage increases, the detected light intensity increases. In the panel with phosphor, the intensity of light detected at barrier rib shows the stronger light intensity than rear plate. Therefore, the phosphor of barrier rib is very important. From these results the 3-dimensional measurement is necessary to understand exactly the discharge phenomenon in the PDP cell.

Frit 첨가량에 따른 PDP용 형광체의 특성 연구 (Characteristics of Phosphors for PDP with Frit Contents)

  • 정아름;김형준;최성철
    • 한국세라믹학회지
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    • 제47권2호
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    • pp.146-150
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    • 2010
  • Because the plasma display panel has used red, green and blue(RGB) phosphors, it has suffer from two intrinsic problems; 1) the cell defect due to the lack of binding force between phosphor particles and 2) mis-discharge because of difference of electrical characteristics among RGB phosphors. In order to control the mechanical and electrical properties of RGB phosphors, frit with $ZnOB_2O_3-SiO_2-Al_2O_3$ system was added to RGB phosphor as sintering additive. The mechanical properties were increased by the amount of frit. The amount of frit under 5 wt% rarely affected dielectric constant. However, there was the limit of amount because of decreasing optical properties seriously; over 3 wt% in red, over 10 wt% in green and blue.