Liquid crystal composition with positive dielectric anisotropy and display device thereof
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A liquid crystal composition, anisotropic technology, applied in liquid crystal materials, chemical instruments and methods, etc., can solve problems such as short life cycle
Active Publication Date: 2018-10-16
JIANGSU HECHENG DISPLAY TECHCO
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[0015] Liquid crystal materials are an important part of liquid crystal displays, and currently global liquid crystal displays have a great market demand and are mostly used in electronic and electrical products, but their life cycle is short
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Embodiment 1
[0157] The liquid crystal composition of Example 1 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:
[0158] Table 3 liquid crystal composition formula and test performance thereof
[0159]
Embodiment 2
[0161] The liquid crystal composition of Example 2 was formulated according to the compounds and weight percentages listed in Table 4, and it was filled between the two substrates of the liquid crystal display for performance testing. The test data are shown in the table below:
[0162] Table 4 liquid crystal composition formula and test performance thereof
[0163]
[0164]
Embodiment 3
[0166] The liquid crystal composition of Example 3 was prepared by each compound listed in Table 5 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:
[0167] Table 5 liquid crystal composition formula and test performance thereof
[0168]
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Abstract
The invention discloses a liquid crystal composition with positive dielectric anisotropy. The liquid crystal composition contains one or more compounds shown in a general formula I, one or more compounds shown in a general formula II and one or more compounds shown in a general formula III. The invention also discloses a liquid crystal display device including the liquid crystal composition disclosed by the invention. The liquid crystal composition provided by the invention has the advantages of high clearing points, good low-temperature intersolubility, quick response, low LC (Liquid Crystal)light leakage, high contrast ratio, high penetration ratio and the like, and moreover, the contrast ratio can be achieved while large dielectric, low box thickness and quick response are met at the same time; and therefore, the liquid crystal composition is particularly suitable for being used in liquid display elements driven by active matrix thin film transistors (AM-TFT). The formula (1) is shown in the description.
Description
technical field [0001] The invention relates to the field of liquid crystal materials, in particular to a liquid crystal composition with positive dielectric anisotropy and a display device thereof. 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, pas...
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