• Title/Summary/Keyword: 3D LCD

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High-visibility 2D/3D LCD with HDDP Arrangement and its Optical Characterization Methods

  • Uehara, Shin-Ichi;Hiroya, Tsutomu;Kusanagi, Hidenori;Shigemura, Kouji;Asada, Hideki
    • 한국정보디스플레이학회:학술대회논문집
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    • 2008.10a
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    • pp.147-150
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    • 2008
  • We have developed a 3.1-inch diagonal 2D/3D LCD with a novel pixel arrangement, called HDDP (Horizontally Double-Density Pixels), for high-quality 3D images. We have improved 3D visibility by broadening the 3D viewing zone where high-quality images can be seen, and we propose optical characterization methods which can evaluate the high-visibility autostereoscopic displays correctly.

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The fabrication of TFTs for LCD using the 3mask process

  • Yoo, Soon-Sung;Cho, Heung-Lyul;Kwon, Oh-Nam;Nam, Seung-Hee;Chang, Yoon-Gyoung;Kim, Ki-Yong;Cha, Soo-Yeoul;Ahn, Byung-Chul;Chung, In-Jae
    • 한국정보디스플레이학회:학술대회논문집
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    • 2005.07b
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    • pp.948-951
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    • 2005
  • New technology that reduces photolithography process steps from 4 to 3 in fabrication of TFT LCD is introduced. The core technology for 3mask-TFTs is the lift-off process [1], by which the PAS and PXL layer are formed simultaneously. To evaluate the stability of this lift-off process, outgases from photo resist on a substrate during ITO deposition and the quality of ITO film were analyzed and the conventional photo resist stripper machine which operates lift-off process was examined to see its ability to reduce particle problems of the machine. Through the development of total process and design for TFTs using this 3mask technology, panels in TN and IPS modes which exhibit same performances of a display using a conventional process were achieved. In addition, this process was already verified in the mass production line and now some products are being produced by the 3mask technology.

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Analysis of lenticular 3D liquid crystal displays using 3D pixel simulator

  • Kim, Hwi;Jung, Kyoung-Ho;Yun, Hae-Young;Lee, Seung-Hoon;Kim, Hee-Sub;Shin, Sung-Tae
    • 한국정보디스플레이학회:학술대회논문집
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    • 2009.10a
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    • pp.443-446
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    • 2009
  • In this paper, an accurate ray-tracing based visual analysis method of lenticular 3D liquid liquid crystal display (LCDs) and some analysis results are presented. In the developed method, the geometric optics analysis is performed on the single 3D unit pixel of 3D lenticular LCD. It is shown that the display characteristics of 3D lenticular LCD panels of arbitrary size can be evaluated through the 3D unit pixel analysis. The analysis results of a few representative structures of 3D lenticular LCDs are compared.

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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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    • 2003.07a
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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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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/$cm^2$.

TFT-LCD 3D Module Testing System using Embedded Environment (임베디드 환경을 이용한 TFT-LCD 3D 모듈 검사 시스템)

  • Kim, Hyo-Nam;Park, Jin-Yang
    • Proceedings of the Korean Society of Computer Information Conference
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    • 2013.01a
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    • pp.103-106
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    • 2013
  • 3D LCD Module은 기존 TFT-LCD에 Parallax Barrier 방식과 Passive Glasses 방식 및 Active Glass 방식의 기술을 적합하여 만들어 진다. 현재는 3D Module 제작 후 기타 ASSY 장치를 부착 하여 시제품 출시 전에 3D 패턴을 기반으로 출하 검사를 통해 제품 이상 유무를 검사하다 보니 제품 출하 검사 시 불량 요인으로 불량 제품에 대한 모든 Repair공정을 위해 많은 시간 및 인력, 자재 등의 많은 로스 부분이 발생 하여 생산성 절감 및 제품 원가 상승의 요인이 발생 한다. 따라서 본 논문에서 제안하고자 하는 내용은 기존의 2D TFT-LCD Module 검사장비에 3D Pattern 및 동영상을 구현하여 보다 신속 하고 정확한 임베디드 환경을 이용한 2D 및 3D LCD Module용 검사 시스템을 개발 하는데 있다.

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Recent LCD driving technologies for stereoscopic FHD 3D display system

  • Choi, Hee-Jin;Lee, Jun-Pyo;Kim, Jung-Won;Kim, Seon-Ki;Kim, Nam-Deog
    • 한국정보디스플레이학회:학술대회논문집
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    • 2009.10a
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    • pp.438-440
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    • 2009
  • In this paper, we describe the latest LCD driving technology which helps to realize the stereoscopic 3D display system with FHD resolution by using the 240Hz LCD panel. The 240Hz LCD system has two times more data than current 120Hz and can cover the crosstalk due to the progressive scan.

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2.8 inch QVGA System On Panel LCD Employing Advanced CMOS LTPS Technology

  • Yoon, Ji-Mo;Yoo, Juhn-S.;Yu, J.S.;Kim, E.;Son, C.Y.;Park, J.K.;Yoo, Y.S.;Lim, K.M.;Kim, C.D.;Chung, I.J.
    • 한국정보디스플레이학회:학술대회논문집
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    • 2005.07a
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    • pp.285-288
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    • 2005
  • A 2.8 inch fully integrated SOP employing a high performance LTPS CMOS TFT technology has been developed for mobile display applications. The LCD module is directly interfaced with 3V 6-bit RGB source via timing control circuitry. The integrated data driver comprises a 6-bit hybrid type DAC with low power analog buffer.

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Auto-stereoscopic 60 view 3D using slanted Lenticular lens array

  • Im, Hee-Jin;Lee, Byung-Joo;Hong, Hyung-Ki;Shin, Hyun-Ho
    • 한국정보디스플레이학회:학술대회논문집
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    • 2007.08b
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    • pp.1500-1503
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    • 2007
  • Auto-stereoscopic 3D of 60-view number is made using slanted lenticular lens array and LCD of 15.1 inch diagonal size and 3200 by 2400 pixel numbers. Due to its large view number, smooth motion parallax is observed and the visual fatigue is reduced.

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Interference filter based stereoscopic 3D-LCD

  • Jorke, Helmut;Parger, Marc;Simon, Arnold;Schwarz, Sergej;Fritz, Markus
    • 한국정보디스플레이학회:학술대회논문집
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    • 2009.10a
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    • pp.441-442
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    • 2009
  • A wavelength multiplexing based stereoscopic 3D-LCD will be introduced. A new 120 Hz scanning RGB-backlight unit was developed. This backlight module was combined with a standard 120Hz LCD. The 3D-LCD based on interference filter glasses offers an outstanding channel separation and a wide viewing angl.

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