• Title/Summary/Keyword: plasma display

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Influence of Image Sticking on Electra-Optical Characteristics in Alternating-Current Plasma Display Panels

  • Choi, J.H.;Jung, Y.;Jung, K.B.;Kim, S.B.;Choi, E.H.
    • 한국정보디스플레이학회:학술대회논문집
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    • 2003.07a
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    • pp.760-763
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    • 2003
  • We have investigated the electro-optical characteristics of image sticking in AC PDP. Although Image sticking is one of major factors to determine display quality in AC PDP, so far, it has not being reported why it is occurred and how we can prevent it. In this experiment, we have analyzed the effect of MgO protective layer and phosphor on the image sticking and we have measured the difference of firing voltage, brightness and discharge current between sticking image and normal image in AC PDP. As a result, Phosphor degradation is a more major factor than MgO protective layer and the firing voltage of gas discharge in sticking image is higher than that of normal discharge.

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Power Supply for LCO Cleaning Plasma (LCD 세정용 상압 플라즈마 전원장치)

  • Cho, Hyung-Ki;Kim, Gyu-Sik
    • Proceedings of the KIEE Conference
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    • 2006.04a
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    • pp.282-284
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    • 2006
  • UV lamp systems have been used for cleaning of display pannels of TFT LCD or Plasma Display Pannel (PDP). However, the needs for high efficient cleaning and low cost made high voltage plasma cleaning techniques be developed and improved. In this paper, 3kW high voltage plasma power supply system was developed for LCD cleaning. The 3-phase input voltage is rectified and then inverter system is used to make a high frequency pulse train, which is rectified after passing through a high-power transformer. Finally, bi-directional high voltage pulse switching circuits are used to generate the high voltage plasma.

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High Efficient Structure of Plasma Tubes

  • Ishimoto, Manabu;Tokai, Akira;Shinohe, Koji;Awamoto, Kenji;Shinoda, Tsutae
    • 한국정보디스플레이학회:학술대회논문집
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    • 2004.08a
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    • pp.103-108
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    • 2004
  • The plasma tube array display is expected to realize the wall size display with very high luminous efficacy. The cell design for high luminous efficacy was investigated. Also discharging in plasma tube was observed to investigate the structure for high luminous efficacy. As the result, high luminous efficacy of 5.4 lm/W was achieved.

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Noise Reduction Design of Plasma Display Panel (플라즈마 디스플레이의 저소음 설계)

  • Park, Dae-Kyong;Kweon, Hae-Sub;Jang, Dong-Seob
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2002.11a
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    • pp.369.2-369
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    • 2002
  • For the evaluation of the plasma display panel (PDP)'s noise, vibration and sound characteristics of fanless PDP are measured and investigated. PDP is a type of two-electrode vacuum tube which operatres on the same principle as a household fluorescent light. An inert gas such as argon or neon is injected between two glass plates on which transparent electrodes have been formed, and the glass is illuminated by generating discharge. (omitted)

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Full Size PDP Development with SDR Structure for Improved Luminance and Low Power Consumption

  • Yoo, Min-Sun;Yoon, Cha-Keun;Lee, Kwang-Sik;Whang, Ki-Woong
    • 한국정보디스플레이학회:학술대회논문집
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    • 2002.08a
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    • pp.53-56
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    • 2002
  • Samsung's newly developed high luminance efficiency 42" VGA plasma display panel is introduced. A new discharge cell structure, SDR (Segmented electrode in Delta color arrayed Rectangular subpixel) has been applied to a full size panel for the first time. In this paper, we describe how this new discharge cell structure for high efficiency is integrated to an energy saving plasma display with better picture quality.

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Dielectric Thin Film Using Atmospheric Pressure Plasma Polymerization

  • Choi, Sung-Lan;Kim, Hong-Doo
    • 한국정보디스플레이학회:학술대회논문집
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    • 2009.10a
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    • pp.1444-1446
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    • 2009
  • The atmospheric pressure plasma polymerization of acrylate monomers was carried out to have dielectrics with easy preparation and high performance. The effects of discharge power, monomer concentration and deposition time on film properties were investigated using various characterization tools. With proper conditions, smooth dielectric layer of 100nm thickness was obtained. Dielectric property as organic dielectric layer has been studied for future applications in organic thin film transistors(OTFT).

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Characteristics of DC Plasma Display Panel with Double Pulse Memory (Double Pulse Memory 방식을 이용한 DC Plasma Display Panel의 특성 연구)

  • 최경철;신범재;왕기웅
    • Journal of the Korean Institute of Telematics and Electronics B
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    • v.29B no.1
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    • pp.67-75
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    • 1992
  • A new method of driving the PDP(Plasma Display Panel) was proposed and its characteristics were investigated. Applying high frequency non-discharge pulses to an auxiliary anode resulted an increased region of stable operation, decreased delay time and increased light intensity. It is suggested that PDP with DPM (Double Pulse Memory) drive technique improves the delay time, luminance, region of stable operation and luminous efficacy compared to PDP with PPM(Planar Pulse Memory) drive technique developed by NHK Lab. in Japan.

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Measurement of Wall Voltage in Reset Discharge of AC PDP

  • Park, K.D.;Jung, Y.;Ryu, C.G.;Choi, J.H.;Kim, S.B.;Cho, T.S.;Oh, P.Y.;Jeon, S.H.;Choi, E.H.
    • 한국정보디스플레이학회:학술대회논문집
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    • 2003.07a
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    • pp.722-725
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    • 2003
  • In AC plasma display, it is very important to quantify the wall voltage induced by the wall charge accumulated on the dielectric surface. If we know the quantities of the wall voltage in each period of every sequence; reset period, address period and sustain period, then it helps us to design the optimal driving waveform for high efficiency plasma display. We develop a new method to measure the wall voltage with VDS (Versatile Driving Simulator) system. From this method the wall voltage induced by a wall charge profiles just after the reset discharge of every cells in plasma display panel can be investigated and analyzed successfully. It is noted that the wall voltage profiles are influenced by the space charge and then they are stabilized as time goes by. It is also noted that both the remaining wall charge at the previous sequence and space charges contribute to wall voltage quantities just after the reset discharge. It is noted that the wall charges contribute dominantly after a few hundreds microseconds, while the space charges have been decayed within 100 ${\mu}s$ just after the reset discharge.

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Evaluation of the ohmic contact resistivity in Plasma display panels

  • Yang, Seung-Hee;Moon, Cheol-Hee
    • 한국정보디스플레이학회:학술대회논문집
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    • 2006.08a
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    • pp.882-885
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    • 2006
  • The contact resistivity of the black interlayer which has been introduced between BUS and ITO electrodes in a plasma display panel was evaluated using two kinds of specially designed test electrode patterns. Of the two, type 2 pattern was able to evaluate the contact resistivity more successfully, which was calculated as about $250{\Omega}$ in the suggested test pattern structure.

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