A kind of compound, liquid crystal composition and liquid crystal display

A liquid crystal composition and compound technology, applied in liquid crystal materials, chemical instruments and methods, instruments, etc., can solve the problem of liquid crystal composition clearing point and low dielectric constant, narrow response speed, and liquid crystal display cannot be used under high temperature conditions Problems such as the working temperature range, to achieve the effect of increasing the working temperature range, increasing the dielectric constant, and reducing the driving voltage
CN106520140BActive Publication Date: 2019-01-11FUYANG XINYIHUA MATERIAL TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
FUYANG XINYIHUA MATERIAL TECH
Publication Date
2019-01-11

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Abstract

The invention discloses a compound, a liquid crystal composition and a liquid crystal display (LCD). The compound is as shown in the formula I in the specification. In the formula I, R1 and R2 are respectively selected from hydrogen atom, fluorine atom or C1-15 alkyl group or alkoxy group; A1, A2, A3 and A4 are respectively selected from groups as shown in the specification; at least one group in L1, L2 and L3 is -CF2O and other groups are respectively selected from C1-12 alkyl group or alkoxy group; and a, b, c, d, e, f and g are respectively selected from 0 or 1. The liquid crystal composition comprises 1-5 types of the above compound. The LCD contains the above liquid crystal composition.
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Description

technical field

[0001] The invention relates to the field of liquid crystal displays, in particular to a compound, a liquid crystal composition and a liquid crystal display. Background technique

[0002] According to different display methods, liquid crystal displays are divided into dynamic flash type, twisted type, super twisted type and plane switching type. Although different types of liquid crystal displays require liquid crystal compositions to have different properties, they are also required to have the following common features: proper optical anisotropy, proper rotational viscosity and fast response speed.

[0003] The liquid crystal composition is prepared by mixing various liquid crystal compounds, so the properties of the liquid crystal compound monomers are particularly important. Due to the low clearing point of the existing liquid crystal composition, it cannot meet the requirements of liquid crystal displays used at high temperatures, and there is a problem...

Claims

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