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Liquid crystal composition with negative dielectric anisotropy and application thereof

A liquid crystal composition, anisotropic technology, applied in liquid crystal materials, nonlinear optics, optics, etc., can solve the problems of high viscosity and insufficient response.

Inactive Publication Date: 2013-10-23
JIANGSU HECHENG DISPLAY TECHCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the liquid crystal composition disclosed in Chinese Patent Application Publication No. CN101679867A has a sufficiently wide upper temperature limit of the nematic phase, the viscosity is relatively large and the response is not fast enough

Method used

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  • Liquid crystal composition with negative dielectric anisotropy and application thereof
  • Liquid crystal composition with negative dielectric anisotropy and application thereof
  • Liquid crystal composition with negative dielectric anisotropy and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0107] 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:

[0108] Table 3 liquid crystal composition formula and test performance thereof

[0109]

[0110]

Embodiment 2

[0117] 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:

[0118] Table 5 liquid crystal composition formula and test performance thereof

[0119]

Embodiment 3

[0125] The liquid crystal composition of Example 3 was formulated according to the compounds and weight percentages listed in Table 7, which was filled between the two substrates of the liquid crystal display for performance testing. The test data are shown in the following table:

[0126] Table 7 liquid crystal composition formula and test performance thereof

[0127]

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PUM

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Abstract

The invention provides a liquid crystal composition. The liquid crystal composition has negative dielectric anisotropy and comprises at least one compound ith a general formula I (shown in the description), at least one compound with a general formula II (shown in the description) and at least one compound with a general formula III (shown in the description). The liquid crystal composition has proper negative dielectric anisotropy, proper optical anisotropy, low viscosity and wide nematic phase temperature range. The liquid crystal composition provided by the invention is suitable for an active matrix addressing liquid crystal display in a VA (Vertical Alignment), PSVA (Polymer Stabilize Vertical Align), IPS (In Plane Switching) or TFT (Thin Film Transistor) mode. The invention further provides a liquid crystal display device containing the liquid crystal composition.

Description

technical field [0001] The present invention relates to a kind of liquid crystal composition, relate in particular to a kind of liquid crystal composition with suitable negative dielectric anisotropy, suitable optical anisotropy, lower viscosity, wider nematic phase range and its VA , PSVA, IPS or TFT mode LCD applications. Background technique [0002] In liquid crystal display devices, the classification based on the operation mode of liquid crystal includes: phase change (phase change, hereinafter referred to as PC), twisted nematic (hereinafter referred to as TN), super twisted nematic (hereinafter referred to as STN) ), electrically controlled birefringence (hereinafter referred to as ECB), optically compensated bend (hereinafter referred to as OCB), transverse electric field switching type (IPS), vertical transverse type (VA), etc. The device-based driving methods are classified into: passive matrix (hereinafter referred to as PM) and AM. PM is divided into static (s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K19/44C09K19/30G02F1/1333
Inventor 马文阳李鹏飞宋晓龙
Owner JIANGSU HECHENG DISPLAY TECHCO
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