Liquid crystalline tetracyclic compound having fluorine atom, liquid crystal composition and liquid crystal display element

A technology of liquid crystal composition and compound, applied in liquid crystal materials, organic chemistry, nonlinear optics, etc., can solve the problems of unsuitable display, no transparent point, and high optical anisotropy
CN102046570BActive Publication Date: 2014-03-19JNC CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JNC CORP
Publication Date
2014-03-19

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Abstract

The invention provides a liquid crystal compound having stability to heat, light and so forth, a wide temperature range of the nematic phase, a small viscosity, a suitable optical anisotropy, a suitable dielectric anisotropy and an excellent compatibility with other liquid crystal compounds. The invention also provides a liquid crystal composition containing this liquid crystal compound and a liquid crystal display device containing this liquid crystal composition. The compound is represented by formula (a). R a is, for example, alkyl having 1 to 10 carbons, and R b is, for example, alkenyl having 2 to 10 carbons; L a is, for example, hydrogen; and Z 1 , Z 2 and Z 3 are, for example, a single bond. The liquid crystal composition comprises this compound. The liquid crystal display device comprises this liquid crystal composition.
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Description

technical field

[0001] The invention relates to a liquid crystal compound, a liquid crystal composition and a liquid crystal display element. More specifically, it relates to a liquid crystal compound having a skeleton such as a cyclohexane ring, a benzene ring, a cyclohexane ring, and a cyclohexane ring, a liquid crystal composition having a nematic phase containing the compound, and a liquid crystal composition containing the composition Object liquid crystal display element. Background technique

[0002] Display elements using liquid crystal compounds (in this application, the term liquid crystal compound can be used as a general term for compounds having a liquid crystal phase and compounds that do not have a liquid crystal phase but are used as constituent components of liquid crystal compositions) are widely used. It is widely used in displays of clocks, calculators, word processors, etc. These display elements utilize refractive index anisotropy, dielectric anisotro...

Claims

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