Liquid crystal compound containing isothiocyanic acid radical as well as preparation method and application thereof

A compound, liquid crystal technology, applied in chemical instruments and methods, organic chemistry, liquid crystal materials, etc.
CN102786456AInactive Publication Date: 2012-11-21SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
Publication Date
2012-11-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a liquid crystal compound containing an isothiocyanic acid radical as well as a preparation method and an application thereof. The structural general formula of the liquid crystal compound containing the isothiocyanic acid radical is disclosed in a formula I. The compound containing the isothiocyanic acid radical is a liquid crystal monomer; the monomer of the class has bigger optical anisotropy (delta n); and after the monomer is added into mixed liquid crystal, the optical anisotropy of the mixed liquid crystal can be greatly increased so as to improve the property of the mixed liquid crystal. The formula I is as follows.
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Description

technical field

[0001] The invention belongs to the field of liquid crystal compounds and applications, and relates to a liquid crystal compound containing isothiocyanate, a preparation method and application thereof. Background technique

[0002] According to its display mode, LCD is divided into dynamic flash type, twisted TN, super twisted STN and plane switching type IPS. Although the liquid crystal compositions used in these LCDs have different display characteristics, they all have the following common features:

[0003] 1) Maintain stable performance under changes in environmental factors such as water, air and light;

[0004] 2) Wide temperature range of nematic phase;

[0005] 3) Smaller viscosity;

[0006] 4) Lower driving voltage;

[0007] 5) The best optical anisotropy (△n).

[0008] In order to develop large refractive index liquid crystals, people have done a lot of research and found that this monomeric liquid crystal containing isothiocyanate is a strong ...

Claims

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