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Liquid crystal composition with positive dielectric anisotropy and display device of composition

A liquid crystal composition, anisotropic technology, applied in liquid crystal materials, instruments, nonlinear optics, etc., can solve problems such as short life cycle, and achieve the effect of low cell thickness and fast response

Active Publication Date: 2018-10-16
JIANGSU HECHENG DISPLAY TECHCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Liquid crystal materials are an important part of liquid crystal displays, and currently global liquid crystal displays have a great market demand and are mostly used in electronic and electrical products, but their life cycle is short

Method used

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  • Liquid crystal composition with positive dielectric anisotropy and display device of composition
  • Liquid crystal composition with positive dielectric anisotropy and display device of composition
  • Liquid crystal composition with positive dielectric anisotropy and display device of composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0152] The liquid crystal composition of Example 1 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 following table:

[0153] Table 4 liquid crystal composition formula and test performance thereof

[0154]

Embodiment 2

[0156] 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:

[0157] Table 5 liquid crystal composition formula and test performance thereof

[0158]

Embodiment 3

[0160] 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:

[0161] Table 6 liquid crystal composition formula and test performance thereof

[0162]

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PUM

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Abstract

The invention discloses a liquid crystal composition with positive dielectric anisotropy. The composition comprises one or more compounds represented by a general formula I shown in the description, wherein a content of the compounds in the liquid crystal composition is >= 2 wt%; one or more compounds represented by a general formula II shown in the description, wherein a content of the compoundsin the liquid crystal composition is > 2 wt%; and one or more compounds represented by a general formula III shown in the description, wherein a content of the compounds in the liquid crystal composition is >= 11 wt%. The invention also discloses a liquid crystal display device containing the liquid crystal composition disclosed by the invention. The liquid crystal composition provided by the invention has the advantages of a high clearing point, good low-temperature intersolubility, a low driving voltage, a low cell thickness, fast response and a high penetration rate, and is suitable for a liquid crystal display element driven by an active matrix thin-film transistor (AM-TFT), and especially suitable for display elements with harsh working environments, such as on-board displays.

Description

technical field [0001] The invention relates to the field of liquid crystal materials, in particular to a liquid crystal composition with positive dielectric anisotropy and a display device thereof. Background technique [0002] Liquid crystal display elements can be used in various home appliances represented by clocks and electronic calculators, measuring equipment, automotive panels, word processors, computers, printers, televisions, and the like. According to the type of display mode, it is divided into PC (phase change, phase change), TN (twist nematic, twisted nematic), STN (super twisted nematic, super twisted nematic), ECB (electrically controlled birefringence, electrically controlled birefringence), OCB (optically compensated bend, optically compensated bending), IPS (in-plane switching, coplanar transformation), VA (vertical alignment, vertical alignment) and other types. According to the driving method of the component, it is divided into PM (passive matrix, pas...

Claims

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Application Information

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IPC IPC(8): C09K19/44C09K19/30C09K19/12G02F1/137
CPCC09K19/44C09K2019/3009C09K2019/301G02F1/137G02F1/13706
Inventor 贺笛陈昭远韩文明丁文全徐海彬张鹤鸣
Owner JIANGSU HECHENG DISPLAY TECHCO
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