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 poor display, uneven display, image retention, etc.

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

However, it is pointed out in JP2001354967A that a liquid crystal composition containing an alkenyl compound such as the abo

Method used

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  • Liquid crystal composition with negative dielectric anisotropy and display device thereof
  • Liquid crystal composition with negative dielectric anisotropy and display device thereof
  • Liquid crystal composition with negative dielectric anisotropy and display device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0147] 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:

[0148] Table 3 liquid crystal composition formula and test performance thereof

[0149]

Embodiment 2

[0151] 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:

[0152] Table 4 liquid crystal composition formula and test performance thereof

[0153]

Embodiment 3

[0155] 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:

[0156] Table 5 liquid crystal composition formula and test performance thereof

[0157]

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PUM

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Abstract

The invention discloses a liquid crystal composition with negative dielectric anisotropy, which is good in low temperature stability and high in response speed. The liquid crystal composition contains: one or more compounds as shown in general formula I-1 and/or I-2, which account for 20-65% of the total weight of a negative liquid crystal composition; one or more compounds as shown in a general formula II, which account for 8-25% of the total weight of the negative liquid crystal composition; one or more compounds as shown in general formula III, which account for 6-25% of the total weight ofthe negative liquid crystal composition; and one or more compounds as shown in general formula IV, which account for 30-60% of the total weight of the negative liquid crystal composition. The invention also discloses a liquid crystal display device comprising 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 dielectric anisotropy, appropriately high optical anisotropy, high clearing point, good low-temperature stability, and a wide nematic phase temperature A liquid crystal composition with characteristics such as wide range and large diffusion area, 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 (dynamic light scattering) type, GH (guest-host) type, IPS (in-plane switching) type, OCB (Opti...

Claims

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Application Information

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