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Optical rotation compound with isosorbide ester group, optical rotation composition and blue phase liquid crystal composition

A blue-phase liquid crystal and composition technology, which is applied in the fields of organic chemistry, liquid crystal materials, chemical instruments and methods, etc., can solve the problems of missing saturation voltage and high driving voltage.

Inactive Publication Date: 2013-04-24
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the blue phase liquid crystal can be induced by mixing it with a liquid crystal with a nematic phase, it has disadvantages such as too high driving voltage.
For example, even if the blue phase liquid crystal can be successfully induced, the saturation voltage is still not seen when the driving voltage is increased to 170V.

Method used

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  • Optical rotation compound with isosorbide ester group, optical rotation composition and blue phase liquid crystal composition
  • Optical rotation compound with isosorbide ester group, optical rotation composition and blue phase liquid crystal composition
  • Optical rotation compound with isosorbide ester group, optical rotation composition and blue phase liquid crystal composition

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Embodiment Construction

[0088] The direction of the present invention is to provide a novel isosorbide derivative. When used as an optically active dopant, it can induce the blue phase property of the blue phase liquid crystal material, and extend the blue phase temperature width of the blue phase liquid crystal formula and reduce its driving voltage.

[0089] The present invention provides a blue phase liquid crystal composition in the first aspect. The blue phase liquid crystal composition of the present invention comprises a reactive monomer, a photoinitiator, a blue phase liquid crystal material and an optically active dopant. The reactive monomer has at least one reactive vinyl bond, and can be polymerized under the action of the photoinitiator. Suitable reactive monomers can be such as figure 2 Molecules shown are, for example, RM257 (1,4-(4-(3-Acryloyloxy-propoxy)-benzoic acid)-2-methylbenzene) mixed trimethylolpropane triacrylate (DMPAP) or 2-ethyl Ethyl-hexyl acrylate (EHA), accounting f...

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Abstract

Provided is a blue phase liquid crystal composition, comprising a reaction monomer, a photoinitiator, blue phase liquid crystal materials and optical rotation dopants. The optical rotation dopants have the following structure general formula (I), wherein C1 and C2 are respectively a substituted or non-substituted soft chain having 1-14 carbons; Ar1, Ar2, Ar3 and Ar4 are respectively a 1, 4-phenylene; G1, G2, G3 and G4 are respectively a H, F or combination thereof; not both m and x equal 0, and not both n and y equal 0, and p, q, r, s are respectively a positive integer; B1 and B2 are respectively a -O-, and B3, B4, B5 and B6 are respectively a -(C=O)-; and A is a substituted or non-substituted soft chain linking group containing 1-14 carbons.

Description

【Technical field】 [0001] The present invention generally relates to an optically active compound and composition having an isosorbide group. Specifically, the present invention relates to an optically active compound having multiple isosorbide groups and its optically active oligomer, as well as a blue phase liquid crystal composition comprising the optically active compound. The present invention uses an optically active compound with multiple isosorbide groups to induce the blue phase properties of the blue phase liquid crystal composition comprising the optically active compound, so that it can obtain a wider blue phase liquid crystal temperature range and lower The driving voltage has advantages in production, manufacturing and product characteristics. 【Background technique】 [0002] The blue phase (blue phase or BP) liquid crystal is a self-aggregated three-dimensional photonic crystal structure, and this liquid crystal phase usually occurs between the isotropic phase ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D493/04C09K19/58
Inventor 王怜咏黄泰翔杉浦规生林宏洲韩钧杰钟沛霖龙春吉
Owner AU OPTRONICS CORP