• Title/Summary/Keyword: Plasma panel display

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Characteristics of Outgas from Heated Barrier Rib for POP (PDP용 격벽재의 승온 탈가스 특성)

  • 김선호;주정훈;이석영;이강욱;오상진
    • Journal of the Korean institute of surface engineering
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    • v.37 no.3
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    • pp.185-190
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    • 2004
  • Plasma Display Panel is a display device emitting fluorescent light from gas discharge between a front and a rear panel sealed together. Front and rear panel have multitude of film layers and barrier ribs in the rear panel has the largest area so releasing various gases and affecting light emitting characteristics and lifetime. The remaining gases in a barrier rib were studied by thermal desorption analysis up to $400^{\circ}C$ and main gases were $H_2$ $H_2$O, CO. During sustaining at $300^{\circ}C$, the outgassing rates from other gases were decreased but$ H_2$ kept constantly increasing until 1 hour, which can be originated from the dissociation of organics remained in the inside of barrier rib material. In $H_2$O, two distinct peaks were observed: desorption from physically adsorbed one at $l00^{\circ}C$ and from chemically adsorbed one $400^{\circ}C$. The result can be utilized in interpretation of electronic and optical characteristics and evacuation process control of PDP

AMOLED Display Technologies and Recent Trends - Focusing on Flexible Display Technology - (AMOLED 디스플레이 주요 기술 및 최근 동향 - 플렉서블 디스플레이 기술 위주로 -)

  • Kim, Kyoung-Bo;Lee, Jongpil;Kim, Moojin
    • Advanced Industrial SCIence
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    • v.1 no.1
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    • pp.16-22
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    • 2022
  • Starting with cathode ray tubes, displays are forming markets in the order of active marix organic light emitting diode (AMOLED) after PDP (Plasma Display Panel) and LCD (Liquid Crystal Display). OLED is recognized as a key field for the development of each country preparing for the fourth industrial revolution, and especially Samsung Display and LG Display, which are the top industries in Korea, are leading the market with more than 90% of OLED shares. Currently, AMOLED has moved to the area that can be folded or bent. This technology is possible because TFT (Thin Film Transistor) and OLED may be formed on a flexible substrate. In the future, the technology will move to stretchable displays, and for this, the development of substrate materials is first, and then TFT and OLED devices should also be implemented with stretchable materials.

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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Nanoparticle Phosphors Synthesized by Inductively Controlled Plasma Process for Plasma Based Display

  • Yang, Choong-Jin;Park, Jong-Il;Choi, Seung-Dueg;Park, Eon-Byeong;Lee, Young-Joo
    • Journal of the Korean Ceramic Society
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    • v.45 no.7
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    • pp.380-386
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    • 2008
  • Optimized volume production of nanoscale phosphor powders synthesized by radio frequency (RF) plasma process was developed for the application to plasma display panels. The nano powders were synthesized by feeding the both solid and liquid type precursors, and nanoparticle phosphors were characterized in terms of particle size, shape, and photoluminescence (PL) intensities. Computer simulation was performed in advance to determine the process parameters, and nano phosphors were evaluated by comparing with current commercial micron-sized phosphor powders. Practical feeding of both solid and liquid type precursor was proved to be effective for volume production.The developed process showed a potential as a production method for red, blue and green phosphor although the PL intensity still needs further improvement.