• Title/Summary/Keyword: TFT-LCD display

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Blending of Novel Liquid Crystal Mixtures for TFT-LCD TV Application

  • Kim, Y.B.;Lim, E.J.
    • 한국정보디스플레이학회:학술대회논문집
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    • 2002.08a
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    • pp.483-486
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    • 2002
  • Tree-ring types liquid crystalline compounds having fluoro and isothiocyanate substituent[1] were synthesized and their physical properties were measured to evaluate the applications to TFT-LCD TV. All synthesized compounds were showed remarkably high Tni point. Birefringence(${\triangle}n$) and dielectric anisotropy(${\triangle}{\varepsilon}$) were higher than fluoro analogues and isothiocyanate substituted bicyclohexyl-phenyl compounds.

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Fabrication of V-grooved Mold for the Light Guide Plate of TFT-LCD with MEMS Technology

  • Lee, Woon-Seob;Han, Man-Hee;Lee, Sung-Keun;Lee, Seung-S
    • 한국정보디스플레이학회:학술대회논문집
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    • 2002.08a
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    • pp.994-996
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    • 2002
  • We present a novel fabrication method for a V-grooved mold of the light guide plat of TFT-LCD with MEMS technology. This method is performed by the inclined UV lithography and Ni electroplating unlike the previous mechanical processing technique. V-grooves with different dimension can be made simultaneously with single photomask.

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Advanced Color Filter for TFT-LCD

  • Kwon, Jang-Hyuk
    • 한국정보디스플레이학회:학술대회논문집
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    • 2000.01a
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    • pp.159-160
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    • 2000
  • A new manufacturing method using laser transfer technology was developed for a color filter of TFT-LCD. This method can make red, green and blue color layer at the same time without several baking processes. Simple process, no residue, good edge profile, and so on are merits of this process. The same performances (such as color characteristics, reliability, hardness and so on) of current color filter were achieved with this process.

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A Low-Power Gate Driver IC for TFT-LCD Application

  • Lu, Chih-Wen;Leong, Man Fai
    • 한국정보디스플레이학회:학술대회논문집
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    • 2005.07a
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    • pp.301-302
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    • 2005
  • A low-power gate driver IC, which can be used for TFT-LCD application, is proposed. The short-circuit current of the output buffer is greatly reduced. An experimental prototype gate driver implemented in a $0.35-{\mu}m$ CMOS technology demonstrates that the power reduction of 16 % is obtained.

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The characteristics of AlW thin film for TFT-LCD bus line (TFT-LCD bus line을 위한 Al-W 박막 특성에 관한 연구)

  • Dong-Sik Kim;Chong Ho Yi;Kwan Soo Chung
    • Journal of the Korean Vacuum Society
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    • v.9 no.3
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    • pp.233-236
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    • 2000
  • The structural, electrical and chemical characteristics of Al alloy thin film with low impurity concentrations AlW deposited by using dc magnetron sputtering deposition are investigated for the applications as data bus line in the TFT-LCD panel. The deposited thin films show the decrease of resistivity and the increase of grain size after the RTA at $300^{\circ}C$ for 20 min.. Moreover, the resistivity of AlW does not show appreciable grain size dependence after RTA. It is concluded that the decrease of resistivity after RTA is due to the increase of grain size. The annealed AlW is found to be hillock free. And for investigating chemical attack in TFT-LCD etching processing the electric potential of AlW alloy for Ag/AgCl were investigated by cyclic voltammetry. When W wt.% of AlW alloy was higher than about 3%, the electric potential of AlW was more positive than ITO's. Therefore AlW alloy thin film can be propose to use for data bus line.

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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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    • 2005.07a
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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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Development of Universal Remote Control System using TFT Color LCD (TFT Color LCD를 사용한 통합형 리모컨 개발)

  • Kim Yong-Pyo;Yoon Dong-Han;Choi Un-Ha
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.10 no.8
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    • pp.1495-1501
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    • 2006
  • In this paper, It is purposed to Develope Development of Home Automation Remote Control System using W Color touch LCD(liquid crystal display). This control remotely with remote control innovative and ergonomic design, right combination of LCD and hard buttons and its industry leading technology puts your customers at the cutting-edge of home entertainment. Remote Control for casual users is programmed automatically programmed with multiple free step macros and IR commands. Radio Frequency (RF) operation provides 50-100 inch range though walls and doors. Editor includes a vast library of IR codes for hundreds of brands and models of A/V components. This database is constantly growing with the inclusion of new devices every month. Keep your software up to date by using the Live Update feature. Rather than un-installing and re-installing the software, you download updates to the software from the internet.

Enhancement of Transmittance Efficiency of TFT-LCD using High Transmittance Polarizer and Dielectric Anisotropy Liquid Crystal

  • Lim, Sung-Hoon;Son, Dong-Yeon;Choi, Kyung-Seob;Choi, Jae-Ho;Lee, Jong-Hwan;Choi, Kwang-Soo
    • 한국정보디스플레이학회:학술대회논문집
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    • 2009.10a
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    • pp.661-663
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    • 2009
  • This paper describes a fabrication method for high transmittance panel using newly designed polarizer and liquid crystal with a high dielectric anisotropy (${\Delta}{\varepsilon}$). To enhance the transmittance of the panel without contrast ratio reduction, new polarizer with high transmittance and high ${\Delta}{\varepsilon}$ liquid crystal were used. The transmittance of the liquid crystal display (LCD) panel employed by a new polarizer was increased by 6% over that of the panel with a conventional polarizer and liquid crystal in LCD industry.

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Applying Theory of Constraint on Logistic Management in Large Scale Construction Sites - A Case Study of Steel Bar in TFT-LCD Factory Build-Up

  • Huang, Chih-Yao;Chen, Ching-Piao;Li, Rong-Kwei;Tsai, Chih-Hung
    • International Journal of Quality Innovation
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    • v.9 no.1
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    • pp.68-93
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    • 2008
  • The steel bars account for a high percentage of material costs for the current construction projects. At the present time, most of the construction projects for the factories of thin-film transistor liquid crystal display (TFT-LCD) complete the transactions of steel bars when the suppliers ship the steel bars to the temporary storage/processing sites. This paper applies the buy-in concept in the Theory of Constraint (TOC) on the supply chain of steel bars. In this study, suppliers are required to establish warehouses at the construction sites and complete the transactions when the formed and processed steel bars are shipped into the factory sites. The aim is to find a win-win solution to meet with the expectations from constructors as they hope that there is no need to build up inventories but supply is ready at any time. Also, this paper compares and analyzes the traditional supply/inventory model of steel bars and the Demand-Pull (D-P) model under the TOC framework. It is proved that Vendor Management Inventory (VMI) in the D-P model is able to more effectively manage steel bars as a material.