• Title/Summary/Keyword: LCD display

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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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    • 2010.10a
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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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TFT Technology for Flexible Display Applications

  • Kim, Chang-Dong;Kang, In-Byeong;Chung, In-Jae
    • 한국정보디스플레이학회:학술대회논문집
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    • 2007.08b
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    • pp.1767-1770
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    • 2007
  • The key development issues in the flexible displays are TFT backplane technology for their various applications, which requires competitive device performance as well as its low temperature process. In this paper, with shortly reviewing recent flexible display development status, we describe technical trends of low-temperature a-Si TFTs. Our TFTs show good device characteristics enough to apply LCD and electrophoretic display.

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Fast Optical Response Time based on Transient LC Director Control in the Liquid Crystal Display

  • Hong, Seung-Ho;Ma, Jung-Ho;Shin, Seong-Wook;Choi, Soo-Young;Shim, Hoan-Su;Choi, Sang-Un;Son, Gon;Park, Hae-Sung
    • 한국정보디스플레이학회:학술대회논문집
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    • 2002.08a
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    • pp.423-426
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    • 2002
  • New driving waveform which can be inferred by analyzing fundamental LC mechanism is suggested. The main idea of the new waveform is the stabilizing LC layer fast in the cell by controlling the middle director of LC layer. Consequently, we can get not only numerical reduction of optical response merely but also the change of dynamic transmittance from applied voltage exactly

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A Novel Pixel Structure for High Transmission TFT-LCD

  • Shin, Kyoung-Ju;Song, Se-Young;Lee, Il-Pyung;Kim, Chang-Hoon;Jang, Chang-Soon;Chai, Chong-Chul;Souk, Jun-Hyung
    • 한국정보디스플레이학회:학술대회논문집
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    • 2008.10a
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    • pp.208-210
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    • 2008
  • We have developed a LCD Panel that form storage capacitance for pixels between pixel electrode of bottom glass and common electrode of top glass. This method could make higher transmission and higher production yield than before by removing storage electrode line and capacitance on the bottom glass by simplifying bottom pixel structure.

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ASG(Amorphous Silicon TFT Gate driver circuit)Technology for Mobile TFT-LCD Panel

  • Jeon, Jin;Lee, Won-Kyu;Song, Jun-Ho;Kim, Hyung-Guel
    • Journal of Information Display
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    • v.5 no.2
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    • pp.1-5
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    • 2004
  • We developed an a-Si TFT-LCD panel with integrated gate driver circuit using a standard 5-MASK process. To minimize the effect of the a-Si TFT current and LC's capacitance variation with temperature, we developed a new a-Si TFT circuit structure and minimized coupling capacitance by changing vertical architecture above gate driver circuit. Integration of gate driver circuit on glass substrate enables single chip and 3-side free panel structure in a-Si TFT-LCD of QVGA ($240{\times}320$) resolution. And using double ASG structure the dead space of TFT-LCD panel could be further decreased.

On the Development of LCD Simulator: ProLCD

  • Lee, Han-Yong;Pang, Se-Chung;Kim, Hyun-Suk;Yu, Mi;Oh, Jun-Sik
    • 한국정보디스플레이학회:학술대회논문집
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    • 2000.01a
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    • pp.59-60
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    • 2000
  • We have developed the LCD Simulator, which is called "ProLCD", in order to reduce time and efforts for the design and analysis of LCDs. We describe the numerical models implementing the computation of LC directors and electro-optics, the graphic user interface and the visualization modules. Many applications show that ProLCD is a very useful, interactive design tool with good reliability.

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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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An Optimal Design for Power Consumption of 2.2"~2.6" Display System of Mobile Phone

  • Cheng, Hui-Wen;Huang, Hsuan-Ming;Li, Yiming;Tsai, Tseng-Chien;Chen, Hung-Yu;Huang, Kuen-Yu;Hsieh, Tsau-Hua
    • 한국정보디스플레이학회:학술대회논문집
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    • 2009.10a
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    • pp.968-971
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    • 2009
  • TFT-LCD display system is nowadays one of power-hungry components in portable products; technique of power reduction is thus essential for production of mobile phone. In this work, we minimize the display power, using computationally intelligent statistical methodology. Compared with a conventional design, 68.474% reductions on the current consumption could be obtained for a 2.2-inch of TFT-LCD display system of mobile phone. The total power consumption of the display system consisting of the backlight system and current consumption of display panel is thus successfully reduced form 68.305mW to 64.06mW (about 6.215% reductions).

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Development of Large Sized AM-OLED

  • Lee, Baek-Woon;Kunjal, Parikh;HUh, Jong-Moo;Chu, Chang-Woong;Chung, Kyu-Ha
    • Proceedings of the Polymer Society of Korea Conference
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    • 2006.10a
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    • pp.17-18
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    • 2006
  • Flat Panel Displays (FPDs) have made a revolution in the display industry. TFT-LCD (Thin Film Transistor Liquid Crystal Display) has been the main player of FPD for last two decades. As the industry continuously develops the technology for better performance with lower cost is constantly demanded where several post LCD technologies are being developed. One of the prime candidates of post LCD technology is AMOLED (Active Matrix Organic Light Emitting Diode) that is considered to be an ideal FPD due to its extraordinary display performance and potentially low cost display structure. This technology has been accepted to small size display applications, such as cellular phone, PDA and PMP, etc. In this paper it is discussed that how this technology can be extended to large size display applications, such as TV. The technical issues and solutions of TFT backplane and color patterning of OLED materials are discussed and proposed

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A Novel Transflective-type LTPS-LCD with Cap-Divided VA-Mode

  • Kang, Seung-Gon;Kim, Seong-Ho;Song, Seock-Cheon;Park, Won-Sang;Yi, Chung;Kim, Chi-Woo;Chung, Kyu-Ha
    • 한국정보디스플레이학회:학술대회논문집
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    • 2004.08a
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    • pp.831-833
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    • 2004
  • A novel transflective-type LC mode with good display performance has been developed In order to drive both transmissive and reflective modes simultaneously without any modulation of gamma in a single-gap structure, we have introduced a new design concept in the reflective region, where the capacitance is separated into liquid crystal($C_{LC}$} and organic layer($C_{OL}$), playing a key role as a voltage divider in our cap-divided VA-mode. With this cap-divided method having both merits of simplifying process and good legibility, we have achieved good optical characteristics such as high contrast ratio and wide viewing angle in a single-gap homeotropic panel design.

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