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Liquid crystal medium containing triphenyl series compounds and application thereof

A technology of liquid crystal media and compounds, which is applied in the field of liquid crystal display materials and can solve problems such as the reduction of resistivity

Inactive Publication Date: 2015-04-15
SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Larger dielectric anisotropy: The larger the dielectric anisotropy Δε, the smaller the threshold voltage of the liquid crystal, but the ions in the liquid crystal material are easier to precipitate and become free ions, resulting in a decrease in resistivity

Method used

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  • Liquid crystal medium containing triphenyl series compounds and application thereof
  • Liquid crystal medium containing triphenyl series compounds and application thereof
  • Liquid crystal medium containing triphenyl series compounds and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0077] Embodiment Specific Principles

[0078] The general formula involves a numerical range, and the endpoint values ​​should be reflected in the examples. If the numerical range is relatively wide, one or more middle points of the numerical range should also be selected.

[0079] Examples should cover each class of substituent

[0080] The best working example (non-commercial secret) should be reflected in the patent requirements

[0081] Each claim shall correspond to at least one embodiment

[0082] Effect of each embodiment (advantages and disadvantages of various material components)

[0083] Prepare the liquid crystal composition of the present invention by each compound listed in Table 1 and weight percentage, it is filled between two substrates of liquid crystal display and carries out performance test, and test data is as shown in the table below:

[0084] Table 1 The liquid crystal composition formulation of Example 1 and its test performance parameters

[0085...

Embodiment 2

[0087] The liquid crystal composition of the present invention is prepared by each compound listed in Table 2 and the weight percentage, and it is filled between the two substrates of the liquid crystal display for performance testing. The test data are shown in the following table:

[0088] The formula of liquid crystal composition of table 2 embodiment 2 and test performance parameter thereof

[0089]

[0090]

Embodiment 3

[0092] Prepare the liquid crystal composition of the present invention according to each compound listed in Table 3 and the weight percentage, it is filled between the two substrates of the liquid crystal display for performance testing, and the test data are shown in the following table:

[0093] The formula of liquid crystal composition of table 3 embodiment 3 and test performance parameter thereof

[0094]

[0095]

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PUM

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Abstract

The invention relates to a liquid crystal medium containing a terphenyl compound and application thereof, and discloses a liquid crystal medium and application of the liquid crystal medium in liquid crystal display. The liquid crystal medium has positive dielectric anisotropy, and is characterized by containing one or more compounds represented by a structural formula (I) which is shown in the description. The liquid crystal medium provided by the invention is excellent in performance, has wide nematic phase temperature range, high reflective index anisotropy, extremely high electric charge retention rate and low rotary viscosity, can maintain high electric charge retention rate, low power consumption and the like, and has extremely high response speed. The composition disclosed by the invention has wide application prospect and application value in liquid crystal display, and is particularly suitable for manufacturing quick-response active matrix TN-TFT, IPS-TFT, FFS-TFT displays with great refractive index anisotropy.

Description

technical field [0001] The invention belongs to the technical field of liquid crystal display materials, in particular to a liquid crystal medium, in particular to a liquid crystal medium containing terphenyl compounds and its application. Background technique [0002] According to different display modes, liquid crystal display elements can be divided into TN (twisted nemtic twisted nematic), STN (super teisted nemtic super twisted nematic), IPS (in-plan switching), VA (vertical aligbnent vertical alignment), OCB (optically compensated bend) and other types. With the rapid development of TFT (thin film transistor thin film transistor) array-driven liquid crystal display (TFT-LCD) technology, people have been actively researching TFT displays with fast response and high contrast in recent years. [0003] As a liquid crystal material for display, it has been greatly developed, and a large number of liquid crystal compounds have appeared. From various fluorine-containing aro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K19/44G02F1/1333
Inventor 乔云霞丰景义史子谦温刚李锐崔青徐凯
Owner SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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