Compound, liquid crystal medium, liquid crystal display element, and liquid crystal display
A liquid crystal medium and compound technology, applied in the field of liquid crystal display, can solve the problems of high-definition bright spots and difficulty in taking into account rotational viscosity, etc., and achieve the effects of improving clearing points, improving low-temperature mutual solubility, and expanding the working temperature range
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[0021] [Liquid crystal compound]
[0022] The compound structural formula shown in formula I of the present invention is as follows,
[0023]
[0024] In formula I, R represents an alkyl group with 1-10 carbon atoms or an alkenyl group with 2-10 carbon atoms, wherein any one or more hydrogen atoms are optionally substituted by fluorine atoms;
[0025] R' represents a hydrogen atom, an alkyl group with 1-10 carbon atoms or an alkenyl group with 2-10 carbon atoms, wherein any one or more non-adjacent -CH 2 - optionally substituted by -O-, cyclopentylene, cyclobutylene or cyclopropylene, any one or more hydrogen atoms are optionally substituted by fluorine atoms;
[0026] Z represents an alkylene group with 1-10 carbon atoms or an alkenylene group with 2-10 carbon atoms, wherein any one or more non-adjacent -CH 2 - optionally substituted by -O-, any one or more hydrogen atoms are optionally substituted by fluorine atoms;
[0027] W means S or O.
[0028] In some embodiment...
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