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A liquid crystal composition and a liquid crystal display element containing the same

A composition and compound technology, applied in liquid crystal materials, optics, instruments, etc., can solve the problems of low viscosity, high resistivity, optical anisotropy response speed, low driving voltage, large resistivity, etc.

Inactive Publication Date: 2016-03-30
JIANGSU HECHENG DISPLAY TECHCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] (5) High resistivity
[0016] Although, the liquid crystal composition that has the value of large resistivity (ρ) is disclosed in the prior art, as patent document CN103666485A, but still exist in the prior art and can't take into account the requirements of low viscosity, high resistance in LCD TVs, tablet computers, etc. Rate, suitable optical anisotropy, suitable dielectric anisotropy, high response speed, low driving voltage performance balance problem, cannot meet various indicators at the same time

Method used

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  • A liquid crystal composition and a liquid crystal display element containing the same
  • A liquid crystal composition and a liquid crystal display element containing the same
  • A liquid crystal composition and a liquid crystal display element containing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0115] 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:

[0116] Table 3 liquid crystal composition formula and test performance thereof

[0117]

[0118]

Embodiment 2

[0120] 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:

[0121] Table 4 liquid crystal composition formula and test performance thereof

[0122]

Embodiment 3

[0124] 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:

[0125] Table 5 liquid crystal composition formula and test performance thereof

[0126]

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PUM

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Abstract

The invention provides a negative liquid crystal composition and a liquid crystal display device containing the same. The negative liquid crystal composition comprises a first component, a second component and a third component, wherein the first component is at least one compound shown as a general formula I, the second component is at least one or more selected from compounds shown as a general formula II-1, compounds shown as a general formula II-2, compounds shown as a general formula II-3 and compositions thereof, and the third component is at least one compound shown as a general formula III-1 and / or a general formula III-2. The negative liquid crystal composition is high in resistivity, high in dielectric anisotropy, proper in optical anisotropy and good in low-temperature stability. The liquid crystal display device is also provided.

Description

technical field [0001] The invention relates to a liquid crystal composition and its application, more specifically, the invention relates to a liquid crystal composition with negative dielectric anisotropy and a liquid crystal display element 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. As a liquid crystal display method, among its representative methods, PC (phase change, phase change), TN (twistnematic, twisted nematic), STN (supertwisted nematic, super twisted nematic), ECB (electrically controlled birefringence, electrically controlled birefringence) can be cited ), OCB (optically compensated bend), IPS (in-plane switching, coplanar transformation), VA (vertical alignment, vertical alignment), CSH (color superhomeotropic, color super vertical plane) and ...

Claims

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Application Information

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IPC IPC(8): C09K19/06
CPCC09K19/06C09K19/12C09K19/30G02F1/1333G02F1/139
Inventor 韩文明徐海彬马文阳
Owner JIANGSU HECHENG DISPLAY TECHCO
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