Liquid crystal composition with negative dielectric anisotropy and application thereof
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A dielectric anisotropy, liquid crystal composition technology, applied in liquid crystal materials, nonlinear optics, optics, etc., can solve the problems of difficulty in obtaining, slow response speed, and high power consumption
Active Publication Date: 2018-07-03
JIANGSU HECHENG DISPLAY TECHCO
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Problems solved by technology
However, in the prior art, it is difficult to obtain a liquid crystal composition with large refraction, large negative dielectric value and rapid response
A liquid crystal composition with a large absolute value of dielectric anisotropy has a high threshold voltage, high power consumption, and a relatively slow response speed.
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Embodiment 1
[0135] The liquid crystal composition of Example 1 was prepared by each compound listed in Table 2 and the weight percentage, which was filled between the two substrates of the liquid crystal display for performance testing. The test data are shown in the following table:
[0136] Table 2 liquid crystal composition formula and test performance thereof
[0137]
Embodiment 2
[0139] The liquid crystal composition of Example 2 was prepared by each compound listed in Table 3 and the weight percentage, which was filled between the two substrates of the liquid crystal display for performance testing. The test data are shown in the following table:
[0140] Table 3 liquid crystal composition formula and test performance thereof
[0141]
Embodiment 3
[0143] The liquid crystal composition of Example 3 was prepared by each compound listed in Table 4 and the weight percentage, which was filled between the two substrates of the liquid crystal display for performance testing. The test data are shown in the following table:
[0144] Table 4 liquid crystal composition formula and test performance thereof
[0145]
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Abstract
The invention discloses a liquid crystal composition with negative dielectric anisotropy. The liquid crystal composition contains one or multiple compounds shown in a general formula I and one or multiple compounds shown in a general formula II. The invention also discloses a liquid crystal display device comprising the liquid crystal composition disclosed by the invention. The liquid crystal composition with negative dielectric anisotropy can meet appropriate large refractive index, also has the characteristics of large dielectric anisotropy absolute value and relatively low rotary viscosity,is excellent in performance and can realize balanced performance in all the aspects. The liquid crystal composition disclosed by the invention is applicable to a liquid crystal display in a VA or IPSmode. (The formula I and the formula II are described in the specification.).
Description
technical field [0001] The invention belongs to the field of liquid crystal materials, and in particular relates to a liquid crystal composition with negative dielectric anisotropy and its application. Background technique [0002] Liquid crystal display elements can be used in various home appliances represented by clocks and electronic calculators, measuring equipment, automotive panels, word processors, computers, printers, televisions, and the like. According to the type of display mode, it is divided into PC (phase change, phase change), TN (twist nematic, twisted nematic), STN (super twisted nematic, super twisted nematic), ECB (electrically controlled birefringence, electrically controlled birefringence), OCB (optically compensated bend, optically compensated bending), IPS (in-plane switching, coplanar transformation), VA (vertical alignment, vertical alignment) and other types. According to the driving method of the component, it is divided into PM (passive matrix, ...
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Application Information
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