High-transmittance liquid crystal composition with negative dielectric anisotropy and display device thereof

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: 2018-07-03
JIANGSU HECHENG DISPLAY TECHCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Liquid crystal materials are an important part of liquid crystal displays, and currently global liquid crystal dis

Method used

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  • High-transmittance liquid crystal composition with negative dielectric anisotropy and display device thereof
  • High-transmittance liquid crystal composition with negative dielectric anisotropy and display device thereof
  • High-transmittance liquid crystal composition with negative dielectric anisotropy and display device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0152] 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:

[0153] Table 3 liquid crystal composition formula and test performance thereof

[0154]

[0155]

[0156] Comparing Example 1 and Comparative Example 1, it can be found that the negative liquid crystal composition of the present invention has a large absolute value of negative dielectric anisotropy, higher optical anisotropy, higher clearing point and larger penetration rate.

Embodiment 2

[0162] The liquid crystal composition of Example 2 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:

[0163] Table 5 liquid crystal composition formula and test performance thereof

[0164]

Embodiment 3

[0166] The liquid crystal composition of Example 3 was prepared by each compound listed in Table 6 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 6 liquid crystal composition formula and test performance thereof

[0168]

[0169] Comparing Example 2, Example 3 and Comparative Example 2, it can be found that the negative liquid crystal composition of the present invention has a large absolute value of negative dielectric anisotropy, higher optical anisotropy, and higher clearing point and greater penetration.

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PUM

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Abstract

The invention discloses a high-transmittance liquid crystal composition with negative dielectric anisotropy. The liquid crystal composition contains: one or more compounds as shown in general formulaI-1 and/or I-2, which account for 20-60% of the total weight of a negative liquid crystal composition; one or more compounds as shown in a general formula II, which account for 12-40% of the total weight of the negative liquid crystal composition; one or more compounds as shown in general formula III, which account for 12-40% of the total weight of the negative liquid crystal composition; and oneor more compounds as shown in general formula IV, which account for 20-60% of the total weight of the negative liquid crystal composition. The invention also discloses a liquid crystal display devicecomprising the liquid crystal composition. The formulae are as shown in the specification.

Description

technical field [0001] The invention relates to a liquid crystal composition, in particular to a liquid crystal composition with a large absolute value of negative dielectric anisotropy, a relatively high clearing point, a relatively large optical anisotropy, good low-temperature mutual solubility, and relatively high voltage retention. A liquid crystal composition with characteristics such as high rate, good high temperature stability, good ultraviolet performance, and higher transmittance, and a liquid crystal display device comprising the liquid crystal composition. Background technique [0002] Liquid crystal display elements have developed from clocks and calculators to various electrical appliances for household use, measurement equipment, automotive panels, word processors, electronic notebooks, printers, computers, televisions, etc. As a representative liquid crystal display method, it can include TN (twisted nematic) type, STN type (super twisted nematic) type, DS (...

Claims

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Application Information

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IPC IPC(8): C09K19/44
CPCC09K19/44
Inventor 周振婷徐海彬韩文明陈昭远马文阳
Owner JIANGSU HECHENG DISPLAY TECHCO
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