High Birefringence and Low Viscosity Liquid Crystals with Negative Dielectric Anisotropy

    Authors

    S. Gauza; P. Kula; X. Liang; S. T. Wu;R. Dabrowski

    Comments

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    Abstract

    Fast response time is critical for reducing the image blurs in LCD TVs. A straightforward approach is to use thin cell with a high birefringence and low viscosity liquid crystal material. We have synthesized and evaluated the physical properties of some high birefringence, laterally difluorinated terphenyl compounds and mixtures. These mixtures exhibit a high birefringence (Delta n similar to 0.24) in the visible spectral range and a relatively low viscosity. When doped in commercial mixtures, the difluoro terphenyl compounds enhance the mixture's birefringence while causing almost no penalty to the rotational viscosity. These mixtures are particularly attractive for thin cell LCDs to achieve fast response time.

    Journal Title

    Molecular Crystals and Liquid Crystals

    Volume

    509

    Publication Date

    1-1-2009

    Document Type

    Article

    First Page

    789

    Last Page

    801

    WOS Identifier

    WOS:000270270800006

    ISSN

    1542-1406

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