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Negative liquid crystal composition and application

A technology of negative liquid crystals and compositions, applied in liquid crystal materials, nonlinear optics, optics, etc., can solve the problems of high driving voltage and slow response time of negative liquid crystals, and achieve the effect of improving contrast and response speed

Pending Publication Date: 2021-12-03
重庆汉朗精工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of slow response time and high driving voltage of negative liquid crystal, the invention provides a negative liquid crystal composition, which has a larger dielectric constant, larger birefringence and smaller γ1 / K value, which solves the problems of slow response time and high driving voltage of negative liquid crystal

Method used

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  • Negative liquid crystal composition and application
  • Negative liquid crystal composition and application
  • Negative liquid crystal composition and application

Examples

Experimental program
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Effect test

preparation example Construction

[0059] The preparation of the liquid crystal composition of the present invention adopts the following method: weigh the compounds according to the proportions in any one of the examples, and place them in a hard high borosilicate glass bottle for mutual miscibility. Heat the mixture according to the principle of clearing point + 20°C, and stir it with electromagnetic or mechanical stirring until it becomes a molten, clear and homogeneous transparent solution, and then continue to stir for 30 minutes to make the materials thoroughly and evenly mixed, then stop heating. Under reduced pressure and degassing under stirring; as the temperature decreases, the degree of vacuum increases until the temperature cools to room temperature, then stop stirring and continue to evacuate until no bubbles appear.

[0060] Under the protection of nitrogen, use a sand core funnel to filter the mixed liquid crystal into a clean and dry hard high borosilicate suction filter bottle; In the desiccat...

Embodiment 1

[0072] According to the proportions of the components of the liquid crystal composition shown in Table 1, the liquid crystal composition was prepared according to the method described in the present invention, and poured into a test box for performance testing. The measured performance parameters are shown in Table 1.

[0073] Table 1 The proportioning and performance parameters of the liquid crystal composition of Example 1

[0074]

Embodiment 2

[0076] According to the proportions of the components of the liquid crystal composition shown in Table 2, the liquid crystal composition was prepared according to the method described in the present invention, and poured into a test box for performance testing. The measured performance parameters are shown in Table 2.

[0077] Table 2 The proportioning and performance parameters of the liquid crystal composition of Example 2

[0078]

[0079]

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PUM

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Abstract

The invention relates to a negative liquid crystal composition and application, and belongs to the technical field of liquid crystal materials. The negative liquid crystal composition comprises, by mass, 21%-51% of a monomeric compound with the structure shown in the general formula I, 21%-51% of a monomeric compound with the structure shown in the general formula II, 24%-46% of a monomeric compound with the structure shown in the general formula III, and the formula III is disclosed in the invention. The liquid crystal composition disclosed by the invention can reduce driving voltage, improve light penetration rate, improve response speed and improve contrast ratio, can be applied to display modes such as PSVA, UV2A, FFS, IPS and the like, and is of great significance to the field of high display.

Description

technical field [0001] The invention relates to a negative liquid crystal composition and its application. The liquid crystal composition can be used in the liquid crystal display industry, especially in liquid crystal display devices, and can solve the problems of slow response time and high driving voltage of negative liquid crystals. The invention belongs to the technical field of liquid crystal materials. Background technique [0002] With the rapid development of liquid crystal materials and display technology, liquid crystal display has penetrated into many fields of modern life, and its application range is also expanding. Liquid crystal products can be seen everywhere in life, such as electronic watches, game consoles, air conditioner switches, monitors, monitors, etc. devices, tablets, automotive panels, TVs, and more. Liquid crystal display modes include TN, MVA, UV2A, PSVA, IPS, FFS, etc. According to the dielectric properties, liquid crystal materials are divide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K19/44G02F1/1333
CPCC09K19/44G02F1/1333
Inventor 张雪黄善兴李蓝苹王恩洋胡艳华
Owner 重庆汉朗精工科技有限公司
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