Cyclopropyl-containing negative dielectric anisotropic liquid crystal medium and application thereof

An anisotropic, negative dielectric technology, used in liquid crystal materials, nonlinear optics, optics, etc., can solve the problems of poor mutual solubility of negative liquid crystal compounds, and achieve good mutual solubility and large absolute value of negative dielectric anisotropy. , the effect of large K value

Active Publication Date: 2015-05-27
SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For the negative liquid crystal compound of the existing terminal group alkyl group of 2,3-difluorophenyl groups, there are patent problems and contain (cyclobutyl) or (Cyclopentyl) substituent 2,3-difluorophenyl group of the technical problem of poor miscibility of negative liquid crystal compounds, the present invention intends to provide a 2,3-difluorophenyl group containing cyclopropyl Liquid Crystal Media of Negative Liquid Crystal Compounds

Method used

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  • Cyclopropyl-containing negative dielectric anisotropic liquid crystal medium and application thereof
  • Cyclopropyl-containing negative dielectric anisotropic liquid crystal medium and application thereof
  • Cyclopropyl-containing negative dielectric anisotropic liquid crystal medium and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] The liquid crystal composition of the present invention is prepared by each compound listed in Table 1 and the weight percentage, and it is filled between the two substrates of the liquid crystal display for performance testing. The test data are shown in the following table:

[0061] Table 1 The liquid crystal composition formulation of Example 1 and its test performance parameters

[0062]

[0063]

Embodiment 2

[0065] The liquid crystal composition of the present invention is prepared by each compound listed in Table 2 and the weight percentage, and it is filled between the two substrates of the liquid crystal display for performance testing. The test data are shown in the following table:

[0066] The formula of liquid crystal composition of table 2 embodiment 2 and test performance parameter thereof

[0067]

[0068]

Embodiment 3

[0070] The liquid crystal composition of the present invention is prepared by each compound listed in Table 3 and the weight percentage, and it is filled between the two substrates of the liquid crystal display for performance testing. The test data are shown in the following table:

[0071] The formula of liquid crystal composition of table 3 embodiment 3 and test performance parameter thereof

[0072]

[0073]

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PUM

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Abstract

The invention relates to a cyclopropyl-containing negative dielectric anisotropic liquid crystal composition which contains at least one or more of compounds shown in the formulas I-a and I-b and at least one ore more of compounds shown in the formulas II-a and II-b. The cyclopropyl-containing negative dielectric anisotropic liquid crystal composition disclosed by the invention has the advantages of proper negative dielectric anisotropy, proper optical anisotropy, low viscosity and wide nematic temperature range, thereby having preferable application in an electro-optical display and an active matrix display with VA, FFS or IPS effect especially. (The formulas I-a and I-b and the formulas II-a and II-b are shown in the specification).

Description

technical field [0001] The invention belongs to the field of liquid crystal materials, and relates to a liquid crystal medium containing a cyclopropyl negative dielectric anisotropic polar compound, especially for an electro-optic display with active matrix addressing, the display is based on VA (vertical alignment) mode or IPS (in-plane switching) mode or FFS (fringe field switching), including further developments such as MVA (multi-domain VA), PVA (patterned VA) or CPA (wide viewing angle) mode, and the new PSVA ( polymer stabilized alignment) and UV 2 A (UV light vertical alignment) mode, etc. Background technique [0002] Thin film transistor liquid crystal display (TFT-LCD) has gone through a long period of basic research. After realizing mass production and commercialization, it has become a mainstream product in LCD applications due to its advantages of lightness, lightness, environmental protection, and high performance: whether it is a small size Mobile phone scr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K19/30C09K19/44G02F1/1333
CPCC09K19/0403C09K19/30C09K19/3003C09K19/44C09K2019/3009C09K2019/301C09K2019/3016
Inventor 贾鹏忠温刚丰景义樊洁李锋熊会茹
Owner SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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