• Title/Summary/Keyword: display driving

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A Pixel Structure for Reflective Color TFT-LCDs with 27-color in Still-Image

  • Jang, Dae-Jung;Sung, Yoo-Chang;Kwon, Oh-Kyong;Kim, Hyun-Jae
    • 한국정보디스플레이학회:학술대회논문집
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    • 2002.08a
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    • pp.153-156
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    • 2002
  • We have developed a pixel structure for reflective color TFT-LCD which can display 27-color in still-image. The proposed pixel can display 3 gray scale in still image; white, black and median gray. This paper shows the concept and the driving method of the proposed pixel. Finally this paper compares power consumption and area with the Toshiba's DMOG technology.

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Fabrication and Driving of Active-Matrix Field Emission Display

  • Song, Yoon-Ho;Jeong, Jin-Woo;Kim, Dae-Jun;Kang, Jun-Tae;Cho, Kyoung-Ik
    • 한국정보디스플레이학회:학술대회논문집
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    • 2007.08a
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    • pp.483-485
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    • 2007
  • The active-matrix field emission display (AMFED) was fabricated by integrating carbon nanotube emitters on a-Si thin-film transistors. Also, the tapered macro-gate was adopted for high immunity to a high anode voltage and strong electron beam focusing. The fabricated AMFED was successfully driven with a low voltage of below 15 V.

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Large Area Flicker Metric for Display System

  • Shin, Byung-Hyuk;Oh, Jae-Ho;Nam, Hyoung-Sik;Kim, Nam-Deog
    • 한국정보디스플레이학회:학술대회논문집
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    • 2007.08a
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    • pp.95-97
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    • 2007
  • Large area flicker is one of the most annoying image defects, and it is an inherent characteristic of impulsively driven displays such as CRTs. Recently, LCDs have also adopted impulsive driving methods for improved motion picture quality, therefore LCDs can also show large area flicker. Existing metrics do not account for the non-linearity of human brightness perception. This paper presents an improved large area flicker metric to more accurately quantify large area display flicker performance.

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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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Low Power Consumption in Twisted Nematic Mode Using Novel Liquid Crystal Mixture

  • Jeon, Sang-Youn;Song, In-Bum;Hong, Sung-Ho;Lee, Dong-Jin;Choi, Hyun-Chul;Park, Man-Hyo
    • 한국정보디스플레이학회:학술대회논문집
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    • 2008.10a
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    • pp.337-339
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    • 2008
  • Recently, Note PCs have being widely used due to their features such as good mobility and low power consumption. In order to ensure the current market position, further improvement is required. Especially, the lower operating voltage is essential for the long operating time of Note PCs. For the achievement of lower operating voltage, possible contributions from LC materials side are to lower the viscosity and to increase the dielectric constant without sacrificing the reliability. In order to achieve lower driving voltage, new LC mixtures have been developed, optimizing theirs physical properties.

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A Simple Structural Red Phosphorescent Organic Light-Emitting diodes with high-efficiency and low-voltage

  • Seo, Ji-Hyun;Jin, You-Young;Kim, Hoe-Min;Choi, Eun-Young;Kim, Jun-Ho;Lee, Kum-Hee;Yoon, Seung-Soo;Kim, Young-Kwan
    • 한국정보디스플레이학회:학술대회논문집
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    • 2009.10a
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    • pp.46-48
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    • 2009
  • We demonstrated that the simple layered red phosphorescent organic light-emitting diodes are possible to have high efficiency and low driving voltage without hole injection and transport layers. The simplified OLED shows the max. current efficiency, power efficiency and quantum efficiency of 26.3 cd/A, 20.7 lm/W and 16.7 %, respectively.

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Data Line Sharing in TFT-LCD with the Integrated Gate Driver

  • Park, Kwon-Shik;Cho, Nam-Wook;Chun, Min-Doo;Moon, Tae-Woong;Jang, Yong-Ho;Kim, Hea-Yeol;Kim, Binn;Choi, Seung-Chan;Cho, Hyung-Nyuck;Ryoo, Chang-Il;Yoon, Soo-Young;Kim, Chang-Dong;Kang, In-Byeong
    • 한국정보디스플레이학회:학술대회논문집
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    • 2008.10a
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    • pp.1009-1012
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    • 2008
  • We have succeeded in producing the world $1^{st}$ TFT LCD panel adapting the data line sharing method. In the data line sharing structure, two neighboring pixels share one data line. We also adapted time shared data driving with a-Si TFT based circuit integration technology of LG Display's own. By using these technologies, we can reduce the number of source driver ICs by half, compared to that of the existing gate driver integrated TFT LCD panel.

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Research and Development of High Performance 42-inch XGA Plasma Display Panel

  • Choi, Kwang-Yeol;Min, Byoung-Kuk;Kim, Tae-Hyung;Song, Byung-Soo;Yoo, Eun-Ho;Kim, Jin-Young;Jung, Yun-Kwon;Kim, Won-Tae;Yang, Hee-Chan;Ryu, Jae-Hwa
    • 한국정보디스플레이학회:학술대회논문집
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    • 2004.08a
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    • pp.231-235
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    • 2004
  • High performance 42 inch XGA PDP with high luminance of 1,000 cd/$m^2$ has been developed using high efficient electrode structure, discharge gas and closed barrier ribs. For high speed addressing with single scan technique, address discharge time lag was reduced over 40% with FAST driving scheme and new materials. High dark room contrast ratio of 5,000 : 1 was achieved and picture quality was improved using new algorithm for eliminating false contour and improving gray level linearity.

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Optimization of the Data Line Sharing Panel Design for the High Resolution and Large Size LCD

  • Lee, Do-Young;Ji, Ju-Hyun;Koo, Hoe-Woo;Yoo, Ki-Taek;Cho, Suk-Ho;Song, Jae-Hun;Yoo, Sung-Rok;Kim, Jae-Sang;Park, Cheol-Woo;Park, Jae-Hong;Lee, Kyung-Ho
    • 한국정보디스플레이학회:학술대회논문집
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    • 2009.10a
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    • pp.1247-1249
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    • 2009
  • We have successfully developed the 22 inch WSXGA+ DLS(Data Line Sharing) Panel driving in 75 Hz. In the large size and high resolution panels, it is very difficult to design the DLS Panels without failure because of the very short charging time and the large signal delay. So, we first investigated the charging order to find the most adequate charging type to the large size and high resolution panels. And then, we optimized the design of DLS in terms of improving the charging properties using the technologies of the Delta-doping TFTs, Cu metal electrodes and optimization of panel design value and the circuit signal timing.

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