Liquid crystal composition and display comprising same

A technology for liquid crystal compositions and compounds, applied in liquid crystal materials, instruments, chemical instruments and methods, etc., can solve the problems of limited content, high viscosity, and inability to increase the content of compounds with low vapor pressure.

Inactive Publication Date: 2018-02-06
JIANGSU HECHENG DISPLAY TECHCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the manufacturing process of liquid crystal display elements, when injecting the liquid crystal composition into the liquid crystal cell, the compound with low vapor pressure will volatilize due to the extremely low pressure, so it is considered impossible to increase the content of the compound with low vapor pressure
Therefore, there is a problem that the content of the liquid crystal compound represented by the formula (B) in the liquid crystal composition is limited, and the obtained liquid crystal composition exhibits a large Δn but has a significantly high viscosity

Method used

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  • Liquid crystal composition and display comprising same
  • Liquid crystal composition and display comprising same
  • Liquid crystal composition and display comprising same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0192] 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:

[0193] Table 3 liquid crystal composition formula and test performance thereof

[0194]

Embodiment 2

[0196] 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:

[0197] Table 4 liquid crystal composition formula and test performance thereof

[0198]

Embodiment 3

[0204] 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:

[0205] Table 6 liquid crystal composition formula and test performance thereof

[0206]

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PUM

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Abstract

The invention discloses liquid crystal composition with negative dielectric anisotropy. The liquid crystal composition comprises a first component comprising one or more of compounds shown in formulaI, a second component comprising two or more of compounds shown in formula II and a third component comprising one or more of compounds shown in formula III. The invention also discloses a liquid crystal display comprising the liquid crystal composition. The liquid crystal composition has proper dielectric anisotropy and proper rotary viscosity, can meet the requirement for quick response of the liquid crystal display, has characteristics of higher clearing point, wide nematic phase temperature range, higher optical anisotropy, good low-temperature mutual solubility, higher voltage retention rate, good high-temperature stability, good ultraviolet resistance and the like and is applicable to the liquid crystal display.

Description

technical field [0001] The invention relates to a liquid crystal composition, in particular to a liquid crystal composition with a wide nematic phase temperature range, high optical anisotropy, suitable dielectric anisotropy, good low-temperature stability, and high voltage retention A liquid crystal composition with characteristics such as high efficiency, good high temperature stability and good ultraviolet resistance, 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 swit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K19/44C09K19/54G02F1/137
CPCC09K19/44C09K19/54G02F1/137G02F1/13712C09K2019/122C09K2019/3009C09K2019/3027C09K2019/3016C09K2019/301C09K2019/3004C09K2019/123C09K2019/3025C09K19/3066C09K19/08C09K19/12C09K19/3003G02F1/13
Inventor 张鹤鸣丁文全李鹏飞韩文明徐海彬贺笛
Owner JIANGSU HECHENG DISPLAY TECHCO
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