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  • Title: A polarizer-free flexible and reflective electrooptical switch using dye-doped liquid crystal gels.
    Author: Lin YH, Yang JM, Lin YR, Jeng SC, Liao CC.
    Journal: Opt Express; 2008 Feb 04; 16(3):1777-85. PubMed ID: 18542257.
    Abstract:
    A polarizer-free flexible and reflective electro-optical switch 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 due to domain sizes of polymer networks. Such flexible electro-optical switch is bendable and trim-able because of the vertical polymer networks and gel-like materials. The dye-doped LC gel shows good reflectance ~55%, good contrast ratio~450:1 and fast response~6.4 ms at curing temperature 10 degrees C. The bending curvature is 21 mm. The dye-doped LC gels open a new window for trim-able electronic papers, decorative displays, electrically switchable curtains, and electrically switchable sun control film for the automobiles, homes or commercial buildings.
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