• Title, Summary, Keyword: LCD

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LCD Embedded Hybrid Touch Screen Panel Based on a-Si:H TFT

  • You, Bong-Hyun;Lee, Byoung-Jun;Lee, Jae-Hoon;Koh, Jai-Hyun;Takahashi, Seiki;Shin, Sung-Tae
    • 한국정보디스플레이학회:학술대회논문집
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    • pp.964-967
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    • 2009
  • A new hybrid-type touch screen panel (TSP) has been developed based on a-Si:H TFT which can detect the change of both $C_{LC}$ and photo-current. This TSP can detect the difference of $C_{LC}$ between touch and no-touch states in unfavorable conditions such as dark ambient light and shadows. The hybrid TSP sensor consists of a detection area which includes one TFT for photo sensing and two TFTs for amplification. Compared to a single internal capacitive TSP or an optical sensing TSP, this new proposed hybrid-type TSP enables larger sensing margin due to embedding of both optical and capacitive sensors.

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Cost Effective 60Hz FHD LCD with 800Mbps AiPi Technology

  • Nam, Hyoung-Sik;Oh, Kwan-Young;Kim, Seon-Ki;Kim, Nam-Deog;Berkeley, Brian H.;Kim, Sang-Soo;Lee, Yong-Jae;Nakajima, Keiichi
    • 한국정보디스플레이학회:학술대회논문집
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    • pp.677-680
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    • 2008
  • AiPi technology incorporates an embedded clock and control scheme with a point-to-point bus topology, achieving the smallest possible number of interface lines between a timing controller and source drivers. A 46" AiPi-based 10-bit FHD prototype requires only 20 interface lines, compared to 38 lines for mini-LVDS. The measured maximum data rate per one data pair is more than 800Mbps.

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Development of a 30-in. wide-QXGA+ TFT-LCD for High-Information-Content Displays

  • Choi, H.C.;Hong, S.G.;Lim, B.H.;Lee, S.W.;Yeo, S.D.
    • 한국정보디스플레이학회:학술대회논문집
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    • pp.19-22
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    • 2004
  • A 30-inch WQXGA+ TFT-LCD Monitor has been developed based on in-plane switching mode with multi-domain. This product adopts Cu electrode which, in spite of low resistivity, was not applied to TFT LCD products because of productivity and reliability problems etc. This low resistivity material makes it possible to clear the problem caused by line delay in such high resolution TFT-LCDs. As a results of successful adoption of innovative materials and technologies, our world's largest TFT-LCD Monitor has best performance for high information display.

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A Backlight Feedback Control System with Integrated Color Sensor on LCD

  • Lee, Ki-Chan;Park, Yun-Jae;Ko, Hyun-Seok;Moon, Seung-Hwan;Park, Jin-Hyeok;Berkeley, Brian;Kim, Sang-Soo
    • 한국정보디스플레이학회:학술대회논문집
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    • pp.1550-1551
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    • 2005
  • In this paper, to improve the well-known photo conductivity degradation of amorphous silicon, a new LASER immersion treatment has been applied. The optical feedback control LED backlighting system with integrated LCD panel sensor increased the color variation less than 0.008 ${\Delta}u'v'$ compared to 0.025 for a non-feedback system.

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Tuning Effects of High Optical Efficiency on External Electrode Fluorescent Lamp

  • Kim, Ki-Seong;Jeon, Hyun-Woo;Hong, Jin-Woo;Yoon, Jung-Hyun;Kim, Jae-Bum;Jeong, Byoung-Koan;Shin, Jong-Keun;Chung, In-Jae
    • 한국정보디스플레이학회:학술대회논문집
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    • pp.1531-1533
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    • 2007
  • We made a high-efficiency lamp with same spec. as a normal lamp by improving physical constants of a lamp and then analyzed varied effects. By applying novel physical constants to an EEFL, we acquired decrease of lamp operating power and voltage.

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Ultra-slim LCD TV module using edge-lit LED backlight system

  • Kim, Woo-Jun;Cho, Joo-Woan;Yeo, Dong-Min;Ye, Byoung-Dae;Seo, Dong-Jin;Choi, Jin-Sung;Jang, Tae-Seok
    • 한국정보디스플레이학회:학술대회논문집
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    • pp.214-217
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    • 2008
  • We present an ultra-slim LCD module for 40-inch FHD TV. By employing edge-lit backlight system, module thickness of 10mm is achieved. To satisfy the luminance spec of 450 nits in FHD resolution, it is critical to adopt high efficient LED and optical components.

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Development of 40 inch Full Color AMOLED Display

  • Chung, K.;Huh, J.M.;Sung, U.C.;Chai, C.C.;Lee, J.H.;Kim, H.;Lee, S.P.;Goh, J.C.;Park, S.K.;Ko, C.S.;Koh, B.S.;Shin, K.J.;Choi, J.H.;Jung, J.H.;Kim, N.D.
    • 한국정보디스플레이학회:학술대회논문집
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    • pp.781-784
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    • 2005
  • We have developed technology to fabricate large-size active matrix organic light-emitting diode (AMOLED) displays with good color purity. Using these innovations, we have developed a 40inch diagonal WXGA AMOLED full color display. Because the TFT circuitry occupies a large portion of the pixel structure, an efficient white emission OLED is essential to integrate the device onto the active matrix backplane. The development of these technologies enables OLED displays to fulfill the requirements for larger size applications such as HDTVs

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A Study of Performance Improvement through using extending Display of Iphone(smart phone) LCD(TFT or AMOLED) to overcome expression limit of Normal LCD(Seg) for Car audio (CAR audio용 일반 Seg LCD의 표현의 한계를 극복하기 위한 IPHONE(SMART PHONE) LCD(AMOLED,TFT)의 확장 DISPLAY 사용에 대한 성능 개선에 관한 연구)

  • Hwang, Man-Tae;Kim, Yound-Cil
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.325-328
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    • 2010
  • In this paper, To overcome expression limit of Normal LCD(Seg) for Car audio, We research using Smart phone(Iphone) LCD to overcome weakness of seg LCD, We can express detail LCD DISPLAY using Smartphone(iphone), We can call Car to phone, Smartphone(Iphone) Display can Normal Car audio function Display, using phone Application for car to phon.

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Development of 200ppi SOG-LCD

  • Kim, Chul-Ho;Kim, Chul-Min;Moon, Kook-Chul;Park, Kee-Chan;Kim, Il-Gon;Joo, Sueng-Yong;Park, Tae-Hyeong;Maeng, Ho-Suk;Jung, Eu-Jin;Kim, Chi-Woo
    • 한국정보디스플레이학회:학술대회논문집
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    • pp.85-88
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    • 2004
  • 2-inch qVGA (240${\times}$320) TFT-LCD with integrated 6-bit source driver is reported. The pixel density is over than 200ppi and the operation frequency is about 2.8MHz. In order to improve TFT characteristics, TS-SLS (Two-Shot Sequential Lateral Solidification) technology has been employed. A 1:6 demultiplexing scheme has been successfully implemented in the source driver owing to the superb characteristics of the TS-SLS TFTs, which resulted in small driver circuit area.

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