• Title/Summary/Keyword: DISPLAY

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Design and Implementation of JPEG Image Display Board Using FFGA (FPGA를 이용한 JPEG Image Display Board 설계 및 구현)

  • Kwon Byong-Heon;Seo Burm-Suk
    • Journal of Digital Contents Society
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    • v.6 no.3
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    • pp.169-174
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    • 2005
  • In this paper we propose efficient design and implementation of JPEG image display board that can display JPEG image on TV. we used NAND Flash Memory to save the compressed JPEG bit stream and video encoder to display the decoded JPEG mage on TV. Also we convert YCbCr to RGB to super impose character on JPEG image. The designed B/D is implemented using FPGA.

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A Study on how chromatic adaption affects human visual performance of display

  • Lee, Hwal-Ly;Woo, Jong-Seok;Whang, Ki-Woong
    • 한국정보디스플레이학회:학술대회논문집
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    • 2009.10a
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    • pp.1550-1553
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    • 2009
  • We studied the human visual performance with PDP and LCD to clarify the relationships between viewer preference and chromatic adaption. In this paper, optical performance of the display is measured mechanically based on standard. The human visual performance about the display color image quality trough optical process is represented numerically based on CIECAM02. By comparing these results with the result of the questionnaire, performance of the display can be evaluated in detail.

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High Optical Performance of 7" Mini-monitor Based on 2D-3D Convertible Autostereoscopic Display

  • Kim, Sun-Kyung;Park, Sang-Hyun;Kim, You-Jin;Min, Kwan-Sik;Park, Seo-Kyu;Jhun, Chul-Gyu;Kwon, Soon-Bum
    • 한국정보디스플레이학회:학술대회논문집
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    • 2009.10a
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    • pp.1367-1370
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    • 2009
  • We have developed a 2D-3D convertible 7" autostereoscopic mini-monitor with high 3D quality, in which the parallax barrier LCD is attached on the TFTLCD. The excellent optical performance was achieved by design of the ghost free barrier and precise assembly between the barrier layer and the TFT-LCD panel. Our design principle and fabrication technology suppressed 3D cross-talk and improved viewing angle. In this paper, the design and fabrication process of the 3D mini-monitor are described. The evaluation for the 3D performance is also discussed.

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Two-step polyimide curing technique for flexible plastic liquid crystal devices

  • Kim, Ki-Seo;Kim, Hyun-Jin;Kim, Min-Jeong;Kim, Hyun-Gi;Choi, Suk-Won;Kim, Sung-Soo
    • 한국정보디스플레이학회:학술대회논문집
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    • 2009.10a
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    • pp.883-885
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    • 2009
  • We proposed intriguing and simple technique for fabricating flexible plastic liquid crystal (LC) devices. We made a preliminary version of a flexible LC display employing this concept, and we confirmed this technique was useful for the flexible LC display; the electro-optical reproducibility of the flexible LC device fabricated here was remarkably improved against external perturbation compared with the conventional one.

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Abnormal Discharge Characteristics of Fluorescent Lamp

  • Lee, Chang-Ho;Kang, Jae-Kyung;Jang, Eun-Seok;Kim, Jae-Bum;Park, Joon-Ha;Shin, Jong-Keun;Chung, In-Jae
    • 한국정보디스플레이학회:학술대회논문집
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    • 2009.10a
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    • pp.1425-1427
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    • 2009
  • In this paper, we investigated influence of gas pressure and gas mixing ratio on the abnormal discharge characteristics of fluorescent lamp. Abnormal discharge characteristics have been examined by changing inner gas pressure and mixing ratio. As the inner gas pressure and mixing ratio increase, the occurrence of abnormal discharge was delayed. It was found out that the occurrence of abnormal discharge is sufficiently delayed at the optimized inner gas pressure and mixing ratio.

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Development of Fast Moving Ball Actuator Mode for Novel Electronic-Paper Displays

  • Park, Hyo-Joo;Choi, Hong;Lee, Dong-Hyuck;Kim, Dong-Woo;Bae, Byung-Sung;Kim, We-Yong;Kim, Byung-Uk;Hong, Mun-Pyo
    • 한국정보디스플레이학회:학술대회논문집
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    • 2009.10a
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    • pp.935-936
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    • 2009
  • In this paper, we describe the basic operating mechanism of our novel reflective display, Fast Moving Ball Actuator (FMBA) mode[1], using micro-sized metal coated polymer ball in fluid medium. Metal surface of the ball can be charged up by contact electrode and their locations can be controlled by applied field to obtain optically on and off state. In the medium with high viscosity, the response speed of the moving ball might be reached into their terminal velocity and changed in proportion to the frequency of applied voltage on the electrodes.

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Fabrication of soluble organic thin film transistor with ammonia ($NH_3$) plasma treatment

  • Kim, Dong-Woo;Kim, Doo-Hyun;Kim, Keon-Soo;Kim, Hyoung-Jin;Choi, Hong;Lee, Dong-Hyeok;Hong, Mun-Pyo
    • 한국정보디스플레이학회:학술대회논문집
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    • 2009.10a
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    • pp.566-567
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    • 2009
  • We have examined the silicon nitride ($SiN_x$) as gate insulator with the ammonia ($NH_3$) plamsa treatment for the soluble derivatives of polythiophene as p-type channel materials of organic thin film transistors (OTFTs). Fabrications of the jetting-processed OTFTs with $SiN_x$ as gate insulator by $NH_3$ plasma treatment can be similar to performance of OTFTs with silicon dioxide ($SiO_2$) insulator.

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Enhanced Properties of IZO Thin Film Prepared by Nano-Powder Target

  • Ji, Seung-Hun;Youn, Hyun-Oh;Seo, Sung-Bo;Kim, Mi-Sun;Sohn, Sun-Young;Kim, Jong-Jae;Kim, Hwa-Min
    • 한국정보디스플레이학회:학술대회논문집
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    • 2009.10a
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    • pp.1428-1429
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    • 2009
  • Compared to the indium zinc oxide (IZO) film fabricated by micro-powder target, the IZO film with nano-powder target exhibited improved optoelectronic properties of wide bandgap, high transmittance, surface uniformity, and low sheet resistance due to the high film density.

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Compensation of OLED Degradation by AMOLED Pixel Circuit

  • Choi, Sang-Moo;Goo, Bon-Seok;Kang, Jin-Goo;Kim, Keum-Nam;Kim, Yang-Wan;Choi, Woong-Sik;Kim, Byung-Hee
    • 한국정보디스플레이학회:학술대회논문집
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    • 2009.10a
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    • pp.466-469
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    • 2009
  • The life time of AMOLED displays has been dependent on OLED materials up to this point. In particular, image sticking (burn-in) has been one of the most critical issues for AMOLEDs. This paper proposes image sticking compensation AMOLED pixel circuits to address the problem without requiring process or material improvements to the OLED itself. We verified the performance of those circuits by simulation and actual panel implementation.

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