• Title/Summary/Keyword: flat panel display

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Current Status and Technology of Plasma Displays (플라즈마 디스플레이의 기술과 현황)

  • 강정원;김영섭
    • Journal of the Semiconductor & Display Technology
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    • v.3 no.4
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    • pp.1-4
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    • 2004
  • 21세기에 접어들면서 Digital시험방송의 시작과 다양한 Contents의 유입으로 평판디스플레이 (Flat Panel Display)에 관한 관심과 수요가 증가하고 있다. 이 중 PDP는 90년대 후반부터 양산 및 개발을 시작하여 현재는 40 inch에서 60 inch 화면 크기의 제품을 시장에서 구입할 수 있으며, 03년도에는 80 inch 크기의 Proto-type Model을 공개한 바 있다. PDP는 40 inch 이상의 대면적 구현이 용이하다는 점, CRT와 동등 수준의 화상 구현이 가능하다는 점, 제조공법이 간단하고 제조원가가 저렴하다는 점 등을 특징으로 시장을 확대하고 있으나, 좀 더 대중적인 디스플레이가 되기 위해서는 고휘도 및 고효율화, 화질개선 그리고 저가격화 등과 같은 과제를 해결하여야 한다. 본 논문에서는 PDP의 개발역사 및 시장현황, 구조 및 구동 방법 그리고 해결과제 및 전망에 대해서 포괄적으로 살펴보기로 한다.

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Low-k and High Reflectance Material as a Filler for Flat Panel Display Devices

  • Lee, Jung-Ki;Kim, Jin-Ho;Sung, Woo-Kyung;Hwang, Seong-Jin;Kim, Hyung-Sun
    • 한국정보디스플레이학회:학술대회논문집
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    • 2007.08b
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    • pp.1580-1582
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    • 2007
  • The composites were fabricated with titania used commercially and calcite as a filler in BZB glass matrix and their thermal, optical and electrical properties were investigated. From our results, calcite may be the profitable and highly efficient reflectance material as a filler for flat panel display devices.

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Intelligent algorithm for automatical measuring FPD thickness (FPD용 박막 두께 자동 측정을 위한 지능화 알고리즘)

  • Mun Chan-U;Choi U-Gyeong;Kim Seong-Hyeon;Kim Yong-Min;Jeon Hong-Tae
    • Proceedings of the Korean Institute of Intelligent Systems Conference
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    • 2006.05a
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    • pp.231-234
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    • 2006
  • 과거 디스플레이 장치로서 사용되던 CRT를 대신하여, 상대적으로 두께가 않고 가벼운 영상장치인 평판 디스플레이(Flat Panel Display, FPD)의 사용이 급증하고 있다. 이렇게 평판표시장치(Flat Panel Display) 산업의 폭발적인 성장과 함께 새로운 공정개발을 통해 짧은 시간에 더 많은 양을 생산하고, 불량률을 낮추는가에 생산업체의 사활이 달려있다. 본 논문은 FPD 공정에서 품질을 결정하는 여러 요인 가운데 비중이 큰 박막 두께의 제어를 지능화 알고리즘을 통해 해결하고자 한다. 이는 불필요한 과정을 줄여 공정경비를 절감 및 소요시간을 단축하고, 정밀하게 두께를 측정하는 것을 가능하게 한다. 마지막으로, 제안한 알고리즘을 광 간섭 두께 측정기를 통해 얻은 실제 값을 가지고 시료의 두께를 측정한다.

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Nonvolatile memory devices with oxide-nitride-oxynitride stack structure for system on panel of mobile flat panel display

  • Jung, Sung-Wook;Choi, Byeong-Deog;Yi, Jun-Sin
    • 한국정보디스플레이학회:학술대회논문집
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    • 2008.10a
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    • pp.911-913
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    • 2008
  • In this work, nonvolatile memory (NVM) devices for system on panel of flat panel display (FPD) were fabricated using low temperature polycrystalline silicon (LTPS) thin film transistor (TFT) technology with an oxide-nitride-oxynitride (ONOn) stack structure on glass. The results demonstrate that the NVM devices fabricated using the ONOn stack structure on glass have suitable switching characteristics for data storage with a low operating voltage, a threshold voltage window of more than 1.8 V between the programming and erasing (P/E) states after 10 years and its initial threshold voltage window (${\Delta}V_{TH}$) after $10^5$ P/E cycles.

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$\Delta$-Shaped Interpolation Algorithm for Displaying the Multi-Source Signal on the Flat Panel Display (FPD 상에서 다중 신호원을 디스플레이하기 위한 $\Delta$-Shaped 보간 알고리즘)

  • 박병기;최철호;박진성;권병헌;최명렬
    • Journal of Korea Multimedia Society
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    • v.2 no.1
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    • pp.89-98
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    • 1999
  • In this paper, we propose the delta-shaped interpolation method for displaying multi-source video signals on a-Si TFT LCD Panel. The proposed method can be implemented by using less circuits than the conventional methods. Thus it can be applied to the FPD(Flat Panel Display) system without any cost increase such as field memory cost. In order to compare the picture quality of the proposed method with that of the conventional methods, the computer simulation has been executed by checking PSNR, which is especially focused on the edge characteristics. The simulation results show that the proposed method is better than others from the point of view on the edge and local characteristics of the image. Finally, the characteristics and trade-off of the proposed method are discussed.

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A Study on an Inspection System of Repeated Pattern in PDP panel

  • Jung, Ji-Hun;Nam, Sang-woon;Hwang, Yong-Ha;Park, Yong-June;Kang, Tea-Kyu;Jeong, Dea-Hwa
    • 제어로봇시스템학회:학술대회논문집
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    • 2004.08a
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    • pp.126-131
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    • 2004
  • The popularity of flat-panel display(FPD), including plasma display panel(PDP) and liquid-crystal display(LCD), has given rise to the need to streamline their production. In these days, PDP is one of the most popular display devices because of its expansion of manufacturing process and simplicity. Bus electrodes, sustain electrodes, barrier ribs and RGB phosphors are patterned on PDP panel to display an image. Since a minute damage on the pattern can cause a serious defect to display, it is important to inspect the pattern precisely. In this paper, an automatic inspection system of repeated pattern in PDP panel has been introduced to find the defect, such as open, short, dirt, island, and so on. And the inspection system has been operated in the mass production line of PDP.

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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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Design and Implementation of Driver Circuit for AC TFEL Flat Panel Display (AC TFEL 평판표시장치의 구동회로 설계 및 구현)

  • 오건창;김명식;권용무;오명환;김덕진
    • Journal of the Korean Institute of Telematics and Electronics B
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    • v.30B no.10
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    • pp.27-34
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    • 1993
  • In this paper, a driver system is designed and implemented to achieve 4-level gray scale CH TFEL(Thin Film ElectroLuminescent) flat panel display. To implement the driver system, commercial EL driver IC chips are used to apply high voltage pulses to the EL panel and a high voltage switching circuit is designed for the EL driver IC. A new method of reducing storage delay time of transistor is proposed to obtain a reliable switching circuit. The controller for EL driver and switching circuit is also designed. The designed driving scheme applicable to EL display with 4-level gray scale is based on the linear characteristics of brightness vs. frequency of AC TFEL. By experiment, it has been shown that the brightness of AC TEFL display with the implemented driving system is controlled by the level of gray scale.

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PDP 공정결함 평가ㆍ분석에 관한 연구

  • 김현종;송준엽;박화영
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2004.05a
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    • pp.204-204
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    • 2004
  • 현재 정보통신의 강국으로 손꼽히고 있는 국내에서도 FPD(Flat Panel Display) 장치를 첨단산업 핵심 기술로 보고 기업 간에 치열한 기술경쟁을 벌이고 있는 실정이다. 현재 양산단계까지 접어든 TFT-LCD(Tin Film Transistor Liquid Crystal Display)와 PDP(Plasma Display Panel)는 경량화, 박형화 등의 장점으로 전자업계에서 최고의 캐시카우(Cash Cow)로 부각되고 있으며, 특히 소비자들의 대화면 선호도의 증가 추세에 힘입어 LCD보다는 콘트라스트 비(Contrast Ratio)와 시야각(View Angle) 측면에 있어 FPD 장치의 대면적화 관점에서 유리한 PDP가 다소 우위를 보이고 있는 추세이다.(중략)

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A Touch-sensitive Display with Embedded Hydrogenated Amorphous-silicon Photodetector Arrays (비정질 실리콘 광센서를 이용한 터치 감응 디스플레이 설계 및 제작)

  • Lee, Soo-Yeon;Park, Hyun-Sang;Han, Min-Koo
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.58 no.11
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    • pp.2219-2222
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    • 2009
  • A new touch-sensitive hydrogenated amorphous silicon(a-Si:H) display with embedded optical sensor arrays is presented. The touch-sensitive panel operation was successfully demonstrated on a prototype of 16-in. active-matrix liquid crystal display (AMLCD). The proposed system provides the finger touched point without the real-time image processing of information of the captured images. Due to the simple architecture of the system, we expect the introduction of large-area touch-sensitive display panels.