• Title/Summary/Keyword: Liquid crystal device

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Research on electricnic paper-like displays using dielectrophoretic force of fullerene particles immersed in liquid crystal medium (액정 매질내의 풀러린 입자의 Dielectrophoretic force를 이용한 전자종이 디스플레이의 연구)

  • Kim, Mi-Kyung;Kim, Mi-Young;Kim, Sung-Min;Srivastava, Anoop Kumar;Lee, Myong-Hoon;Lee, Seung-Hee
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2009.04a
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    • pp.57-58
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    • 2009
  • The dynamics of nano or micro sized-particles in liquid crystal (LC) medium under an external electric field is of theoretical and technological interest. A fullerene of 10 wt% was doped into the LC medium and its electric field induced motion was controlled by both in-plane and vertical electric fields. In the proposed device, pixel electrode I and pixel electrode II were designed consecutively on the bottom substrate and common electrode on the top of the substrate. When the electric field was applied, the fullerenes start to move in direction of applied electric field. The dark, grey and white states in the proposed device can be obtained by suitable combination of the polarity of applied electric field at pixel electrode I, pixel electrode II and common electrode. The dynamical motions of fullerene particles in LC medium suggest that fullerene can be designed for electronic-paper like displays.

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Sealant for LCD Panel (LCD Panel용 Sealant)

  • Cho, Jung-Hwan;Cho, Kyu-Won;Kim, Myeong-Koo;Lim, Young-Taek;Park, Joo-Hyeon
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2006.11a
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    • pp.317-317
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    • 2006
  • This study is about Sealant for LCD panel which used m manufacture of liquid crystal display device with LC dropping method, with the least contamination of liquid crystals, the best adhesion of glass and Improvement of photoreaction for shaded area.

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Crystal Growth of LiNbO3 for SAW Devices (SAW Device 응용을 위한 LiNbO3 단결정 성장)

  • 최종건;오근호
    • Journal of the Korean Ceramic Society
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    • v.25 no.1
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    • pp.78-82
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    • 1988
  • Good quality LiNbO3 single crystals which can be applied to SAW devices, were grown by Czochralski method. It was observed that the gas-bubbles were concentrated in ring shape at the outer part of grown crystals, and this anomaly was illustrated by modeling the mechanism of gas-bubble entrapment according to the melt flow pattern in the crucible. And this mechanism was also encertained by observation of solid-liquid interface shape of grown crystals. The optimal condition for good quality crystals was known that the solid-liquid interface shape was slightly concave.

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Plastic LCDs Using Pixel Isolated LC mode

  • Jung, Jong-Wook;Kim, Jae-Hoon
    • 한국정보디스플레이학회:학술대회논문집
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    • 2004.08a
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    • pp.1220-1222
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    • 2004
  • We developed a new device structure using anisotropic phase separation from liquid crystal (LC) and polymer composite materials using UV intensity variation and polymer wetting properties. In the device, the LC molecules are isolated in pixels where LCs are surrounded by the inter-pixel vertical polymer walls and the horizontal polymer films on the upper substrate. These devices show very good mechanical stability against external pressure. The electro-optic characteristics and the mechanical stability of the devices are discussed in view of the flexible display applications.

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Noble LCD with a Single Supporting Substrate

  • Wook, Jung-Jong;Kim, Jae-Hoon
    • Journal of Information Display
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    • v.3 no.4
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    • pp.4-7
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    • 2002
  • A recently developed phase separated composite film method has been employed to fabricate a liquid crystal (LC) based electro-optical device using a single glass substrate. The resulting device is made of adjacent parallel layers of LC and polymer maded by phase separation. The LC layer is confined between the solidified polymer layer on one side and the glass substrate on the other. The electro-optical properties of these devices demonstrate their technological potential in light weight and hand-held electronic products.

LED Scanning Backlight Stereoscopic Display with Shutter Glasses

  • Liou, Jian-Chiun;Lee, Kuen;Tseng, Fan-Gang
    • 한국정보디스플레이학회:학술대회논문집
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    • 2008.10a
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    • pp.710-713
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    • 2008
  • LED Scanning Backlight Stereoscopic Display with Shutter Glasses is provided to realize stereoscopic image viewing even in a liquid crystal display. The eye shutter signal is alternately switched from the left eye to the right eye with 120Hz of LCD Vertical synchronization (V-sync).

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Novel electrode architecture for transparent organic thin-film transistors

  • Chen, Fang-Chung;Chen, Tung-Hsien;Lin, Yung-Sheng
    • 한국정보디스플레이학회:학술대회논문집
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    • 2006.08a
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    • pp.194-197
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    • 2006
  • One novel electrode-architecture has been adapted to fabricate transparent OTFTs. The device has more than 70% transmittance, yet reminds high performance. Furthermore, we also use transfer line method to prove that the device performance enhancement indeed contributes from the reduction of the contact resistances. It is anticipated that the transparent OTFTs would be very suitable to be the driving circuits for liquid crystal displays (LCDs).

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