Liquid crystal composition and application thereof
A liquid crystal composition and compound technology, applied in liquid crystal materials, optics, instruments, etc., can solve the problems of poor mutual solubility and low viscosity of compounds, and achieve the effect of large negative dielectric anisotropy and high-definition bright spots
Inactive Publication Date: 2015-05-06
SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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Problems solved by technology
[0005] In the early stage, our company invented the terminal group containing (cyclobutyl) or (Cyclopentyl) substituent 2,3-difluorophenyl group negative liquid crystal compound, although it has the advantages of large absolute value of negative dielectric anisotropy, low viscosity, large K value and high-definition bright spots in performance, when The miscibility of the liquid crystal medium will be improved when combined with the compound of the alkyl end group, but the miscibility of the compound of the alkyl end group will be poor when this type of compound is used alone. The present invention aims to solve this miscibility technology problem, so a liquid crystal medium containing a negative liquid crystal compound of a cyclopropyl 2,3-difluorophenyl group is provided
Method used
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Embodiment 1
[0046] The liquid crystal composition of the present embodiment comprises the following compounds by percentage:
[0047]
[0048]
[0049]The physical parameters of the composition are as follows;
[0050] Δn=0.087; Δε=-3.8; ε⊥=7.6; Cp=80.4°C; γ1=92.3;
Embodiment 2
[0052] The liquid crystal composition of the present embodiment comprises the following compounds by percentage:
[0053]
[0054]
[0055] The physical parameters of the composition are as follows;
[0056] Δn=0.1124; Δε=-3.3; ε⊥=6.9; Cp=76.7°C; γ1=85.5;
Embodiment 3
[0058]
[0059] The physical parameters of the composition are as follows;
[0060] Δn=0.1024; Δε=-3.6; ε⊥=7.6; Cp=75.1°C; γ1=81.6;
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The invention relates to a liquid crystal composition with negative dielectric anisotropy. The liquid crystal composition comprises a dielectric negative component, a component A, a second dielectric neutral component and a component B. The liquid crystal composition provided by the invention has appropriate negative dielectric anisotropy, appropriate optical anisotropy, relatively low viscosity and a relatively wide nematic phase temperature range.
Description
technical field [0001] The invention belongs to the field of liquid crystal materials, and in particular relates to a liquid crystal composition and the application of the liquid crystal composition. technical background [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 screens, large-sized notebook computers (Notebook PC) or monitors (Monitor), and large-scale LCD TVs (LCD-TV), TFT-LCD applications can be seen everywhere. [0003] The early commercial TFT-LCD products basically adopted the TN display mode, and the biggest problem was the narrow viewing angle. With the increase of product size, especially in the application of TV field, IPS display mode and VA display mod...
Claims
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IPC IPC(8): C09K19/42C09K19/44G02F1/1333
Inventor 陈雪娇高红茹孙轩非熊晓明熊会茹乔云霞
Owner SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD