- Liquid crystal compound with negative dielectric anisotropy as well as preparation method and application thereof
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The invention relates to the liquid crystal field, in particular to a novel dibenzofuran negative dielectric anisotropy compound, a preparation method and application thereof. The liquid crystal compound has a structure shown as general formula (I), wherein R represents alkyl or alkoxy with 1-12 carbon atoms. The chemical host structure of the liquid crystal compound provided by the invention is dibenzofuran, and the structure itself has large dielectric anisotropy. The liquid crystal compound provided by the invention has the advantages of extremely high negative dielectric anisotropy, higherclearing point, relatively lower rotary viscosity, good liquid crystal intersolubility and the like. The composition using the liquid crystal compound can effectively reduce the driving voltage, improves the response speed of the liquid crystal display device, and at the same time has the characteristics of moderate optical anisotropy value, high charge retention rate, etc.
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Paragraph 0059; 0062-0063
(2021/05/08)
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- Liquid crystal compound, a liquid crystal composition, liquid crystal display element and liquid crystal display
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The invention relates to a liquid crystal compound, a liquid crystal composition, a liquid crystal display element containing the liquid crystal compound or the liquid crystal composition and a liquidcrystal display, and belongs to the field of liquid crystal display. The liquid crystal compound disclosed by the invention is shown as a formula I in the specification. The liquid crystal compound can improve the residual image defect of the liquid crystal display.
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Paragraph 0125; 0129-0131
(2021/02/10)
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