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Novel liquid crystal medium containing deuterated difluoromethoxy-bridge compound and application thereof

A technology of liquid crystal medium and compound, applied in the field of liquid crystal display

Inactive Publication Date: 2015-04-29
SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] So far there is no single liquid crystal material used alone in liquid crystal displays that can meet the performance requirements without developing a combination of other performance characteristics

Method used

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  • Novel liquid crystal medium containing deuterated difluoromethoxy-bridge compound and application thereof
  • Novel liquid crystal medium containing deuterated difluoromethoxy-bridge compound and application thereof
  • Novel liquid crystal medium containing deuterated difluoromethoxy-bridge compound and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0128] The liquid crystal composition of the present invention is prepared by each compound listed in Table 1 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:

[0129]

[0130]

[0131]

[0132] Implementation column 2

[0133] 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:

[0134]

[0135]

[0136]

[0137] Implementation column 3

[0138] The liquid crystal composition of the present invention is prepared by each compound listed in Table 3 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 tabl...

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PUM

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Abstract

The invention discloses a liquid crystal medium and application of the liquid crystal medium in liquid crystal display. The liquid crystal medium has various isomerisms of positive dielectric and is characterized by containing one or more compound shown by a structural formula I. The liquid crystal medium is excellent in performance, wide in nematic temperature range, suitable in anisotropy of refractive index, high in charge retention, low in rotary sticky degree and energy consumption and excellent in response speed and high and low temperature performances. The liquid crystal medium containing a liquid crystal monomer is relatively stable in variations of the rotary sticky degree, a K value and the dielectric anisotropy during low temperature and is obviously excellent in the performances compared with a liquid crystal medium formed by liquid crystal monomers in other types during low temperature. In the liquid crystal display, the composition has wide application prospect and application value and is particularly suitable for an active matrix TN-TFT, IPS-TFT, FFS-TFT display with rapidness in response.

Description

technical field [0001] The invention relates to a liquid crystal mixture and a liquid crystal display containing the liquid crystal mixture, in particular to a novel liquid crystal medium containing a deuterated difluoromethoxy bridge compound and its application. technical background [0002] At present, the application range of liquid crystal compounds is expanding more and more widely, and it can be applied to various types of displays, electro-optic devices, sensors, and the like. There are various types of liquid crystal compounds used in the above-mentioned display fields, among which nematic liquid crystals are most widely used. Nematic liquid crystals have been used in passive TN, STN matrix displays and systems with TFT active matrix. [0003] For the application field of thin film transistor technology (TFT-LCD), although the market has been huge in recent years and the technology has gradually matured, people's requirements for display technology are also constan...

Claims

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Application Information

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IPC IPC(8): C09K19/46C09K19/44G02F1/1333C07C43/225C07D309/06C07D319/06
Inventor 乔云霞丰景义温刚崔青徐凯李锐范晓蕊
Owner SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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