Liquid crystal compound and liquid crystal composition
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United States of America Patent
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Oct 31, 2017
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May 20, 2016
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Oct 13, 2015
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Abstract
The present disclosure discloses a liquid crystal compound and a liquid crystal composition. The liquid crystal compound has a general structural formula as represented by formula I. The liquid crystal composition provided by the present disclosure has a lower rotary viscosity γ1, can achieve a quick response, and further has an appropriate dielectric anisotropy Δ∈, an appropriate optical anisotropy Δn, a high stability to heat and light, a high VHR numerical value especially in the case where the liquid crystal is under harsh conditions, and a stability to electric field and electromagnetic radiation. As a liquid crystal material for use in thin film transistor techniques (TFT-LCD), the material further has the properties of a wider nematic phase temperature range, an appropriate birefringence anisotropy, a very high electrical resistivity, a good anti-ultraviolet performance, a high charge holding rate, a low vapor pressure etc.
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