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收集所有交通大學研究人員與學生個人或團體所發表之各項學術著作，涵蓋期刊論文、教師專書、學位論文等項。;;Collections of Publications of NCTU Researchers and Students Like Journal Papers and Thesis.

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🏛️國立陽明交通大學機構典藏

Author: search.filters.author.Jeng, Shie-ChangSubject: search.filters.subject.polarizer-free

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    Flexible and reflective polarizer-free liquid crystal displays using dye-doped liquid crystal gels
    (2008)
    Lin, Yi-Hsin
    ;
    Yang, Jhih-Ming
    ;
    Jeng, Shie-Chang
    ;
    Lin, Yan-Rung
    ;
    Liao, Chi-Chang
    A flexible and reflective polarizer-free display using dye-doped liquid crystal (LC) gels is demonstrated. The electro-optical performances of both scattering and absorption based dye-doped LC gels depend on curing temperatures. The dye-doped LC gel shows good reflectance similar to 55%, good contrast ratio similar to 450:1 and fast response similar to 6.5ms at curing temperature 10 degrees C when UV curing intensity is 2.6 mW/cm(2). The EO performance depends on the curing temperature. The hysteresis is independent of sampling time duration. The bending curvature is 21 mm. The response of dye-doped LC gels is faster under bending due to the bending-induced sheared force of polymer networks. The dye-doped LC gels open a new window for trimable electronic papers, decorative displays and switchable curtains.
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    Item type:Item,
    Polarizer-Free Gradient Dye-Doped Liquid Crystal Gels
    (2009)
    Lin, Yi-Hsin
    ;
    Yang, Chih-Ming
    ;
    Lo, Chun-Hsiang
    ;
    Lin, Yan-Rung
    ;
    Jeng, Shie-Chang
    A multi-switch display using gradient dye-doped LC gels which is still polarizer-free, fast response (similar to 10ms in general), and high contrast (similar to 200:1 in general) has demonstrated. By controlling the spatial distribution of the density of polymer networks through fabrication process, gradient dye-doped LC gels can be a multi-switch. The gradient dye-doped LC gel is bright without applied voltage and is dark at a high voltage. It appears the colored pattern when LCs are partially reoriented due to the gradient density of polymer networks. The optical analysis of dye-doped LC gels is also discussed. The potential applications are flexible display and decorative displays.