• 제목/요약/키워드: AMLCD

검색결과 103건 처리시간 0.304초

Development of World's Largest 21.3' LTPS LCD using Sequential Lateral Solidification(SLS) Technology

  • Kang, Myung-Koo;Kim, Hyun-Jae;Chung, Jin-Koo;Kim, Dong-Beom;Lee, Su-Kyung;Kim, Cheol-Ho;Chung, Woo-Seok;Hwang, Jang-Won;Joo, Seung-Yong;Meang, Ho-Seok;Song, Seok-Chun;Kim, Chi-Woo;Chung, Kyu-Ha
    • Journal of Information Display
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    • v.4 no.4
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    • pp.4-7
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    • 2003
  • The world largest 21.3" LTPS LCD has been successfully developed using SLS crystallization technology. Integration of gate circuit, transmission gate and level shifter was successfully performed in a large area display. Uniform and high performance of high quality grains of SLS technology make it possible to realize a uniform large size LTPS TFT-LCD with half the number of data driver IC's that is typically used in a-Si LCD. High aperture ratio of 65 % was achieved using an organic inter insulating method which lead to a high brightness of 500 cd/$cm^2$.

Development of World's Largest 21.3' LTPS LCD Using Sequential Lateral Solidification (SLS) Technology

  • Kang, Myung-Koo;Kim, H.J.;Chung, J.K.;Kim, D.B.;Lee, S.K.;Kim, C.H.;Chung, W.S.;Hwang, J.W.;Joo, S.Y.;Maeng, H.S.;Song, S.C.;Kim, C.W.;Chung, Kyu-Ha
    • 한국정보디스플레이학회:학술대회논문집
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    • pp.241-244
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    • 2003
  • The world largest 21.3" LTPS LCD has been successfully developed using SLS crystallization technology. Successful integration of gate circuit, transmission gate and level shifter was performed in a large area uniformly. Uniformity and high performance from high quality grains of SLS technology make it possible to come true a uniform large size LTPS TFT-LCD with half number of data driver IC's used in typical a-Si LCD. High aperture ratio of 65% was obtained using an organic inter insulating method, which lead a high brightness of 500cd/cm2.

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TFT-LCD Employing RGBW Color

  • Lee, Baek-Woon;Song, Keun-Kyu;Yang, Young-Chol;Park, Cheol-Woo;Oh, Joon-Hak;Chai, Chong-Chul;Choi, Jeon-Gye;Roh, Nam-Seok;Hong, Mun-Pyo;Chung, Kyu-Ha;Lee, Seong-Deok;Kim, Chang-Yong
    • 한국정보디스플레이학회:학술대회논문집
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    • pp.1103-1107
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    • 2004
  • Last year, we introduced a TFT-LCD with RGBW color system. The primary advantage of the RGBW system is that its optical efficiency is at least 50% higher than the RGB system. However, it is not a simple task to incorporate the new color system into the infrastructure of the RGB system: the driving circuitry, fabrication of color filter, and color conversion. In this report, the practical hurdles are discussed and the solutions are presented.

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Development of 2.32-inch $320{\times}350$ LTPS TFT-LCD for Advanced Mobile Phones Using SLS Technology

  • Zhang, Lintao;Kang, Myung-Koo;Lee, Joong-Sun;Park, Jong-Hwa;Joo, Seung-Yong;Moon, Kuk-Chul;Kim, Il-Kon;Kim, Sung-Ho;Park, Kyung-Soon;Yoo, Chun-Ki;Kim, Chi-Woo
    • 한국정보디스플레이학회:학술대회논문집
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    • pp.1035-1037
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    • 2005
  • 2.32-inch $320{\times}350$ TFT-LCD with high resolution (206PPI) for advanced mobile phones could be successfully developed. The compact pixel design based on PMOS SLS technique is used to achieve this high resolution. Gate driver and part of data driver are integrated onto the glass substrate. High brightness (170cd) and contrast ratio (400:1) were obtained with very low flickering and crosstalk levels.

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Recent Trend of Low Temperature Poly Silicon Technologies in TFT-LCD

  • Kim, C.W.;Kim, H.J.;Lee, H.G.;Min, H.G.;Hwang, J.W.;Cho, S.W.;Ryu, C.K.;Lee, C.;Kang, M.K.;Chung, K.H.
    • 한국정보디스플레이학회:학술대회논문집
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    • pp.46-49
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    • 2002
  • Recent trends of low-temperature polycrystalline Si (LTPS) TFT technologies are presented. Characteristics of LTPS TFT processes are compared with those of a-Si TFT's. In order to compete with well-established a-Si TFT-LCD technology, LTPS process has to be as simple as possible. One of the most critical processes, recrystallization of a-Si thin films, could be the process for the differentiation of LTPS technology. Along with these technical reviews, a recent development of the 5.0-inch LTPS TFT-LCD is presented. In order to achieve high-performance display characteristics and save the power consumption, the transflective mode is adopted. The 5.0-inch display with 186 pixel-per-inch, high-resolution LCD was measured to be 10% for the reflectance and 70:1 for the contrast ratio. This display is designed for a high information content hand-held PC (HHPC) application.

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World's Largest 54-inch TFT-LCD for HDTV Application Using PVA Technology

  • Kim, K.H.;Seomun, S.S.;Chang, H.S.;Song, J.K.;Tak, Y.M.;Kim, S.S.
    • 한국정보디스플레이학회:학술대회논문집
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    • pp.288-291
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    • 2003
  • The technology and performance of the world-largest 54-inch LCD TV using PVA mode have been introduced from two points of view: one is to manufacture large-size panels, the other is to improve electro-optical performance required for multimedia applications. Current ongoing research activities that have been explored include new stitching design, one drop filling with column spacer, response time less than one frame rate, color performance and light efficiency enhancement.

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High Current Stress characteristics on Sequential Lateral Solidification (SLS) Poly-Si TFT

  • Jung, Kwan-Wook;Kim, Ung-Sik;Kang, Myoung-Ku;Choi, Pil-Mo;Lee, Su-Kyeong;Kim, Hyun-Jae;Kim, Chi-Woo;Jung, Kyu-Ha
    • 한국정보디스플레이학회:학술대회논문집
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    • pp.673-674
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    • 2003
  • The reliability of TFT, crystallized by sequential lateral solidification (SLS) technology, has been studied High current damage is characterized by high gate bias (-20V) and drain bias (-10V). It is found that performance of SLS TFTs is enhanced by high current stress up to 300 sec of stress time for 20/8 (W/L) N-TFT. After that, TFT performance is degraded with the increase of the stress time. It is speculated from the experimental data that SLS TFTs initially contain a number of unstable defect states. Then, the defect states seem to be cured by high current stress.

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Two-dimensionally Integrated Fluorescent Lamp for 40 inch LCD-TV Application

  • Kim, Joong-Hyun;Hwang, In-Sun;Byun, Jin-Seob;Park, Hae-Il;Kim, Hyoung-Joo;Jang, Hyeon-Yong;Kang, Seock-Hwan;Kim, Min-Gyu;Kwon, Nam-Ok;Lee, Sang-Yu;Souk, Jun-Hyung;Ko, Jae-Hyeon;Lee, Ki-Yeon;Jung, Kyeong-Taek;Kim, Dong-Woo;Ha, Hae-Soo;Heon, Min;Kim, Nam-Hun;Kim, Hyun-Sook;Kim, Geun-Young;Cho, Seog-Hyun
    • 한국정보디스플레이학회:학술대회논문집
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    • pp.795-798
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    • 2004
  • After showing 32 inch two-dimensionally integrated fluorescent lamp (TIFL) and its module at SID '04, 40 inch TIFL and its module of prototype have been developed at the first time. It is the biggest size in the world as well as has a backlight unit without BEF optical film. The luminance of TIFL is 14000 nit at 190 watt power consumption and its luminous efficacy is 51 lumen/watt. The use of TIFL simplifies backlight assembly process and removes high price optical sheets. As a result, LCD TV, used by TIFL, is rapidly going to expand its market share in the large size TV area.

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