Liquid crystal composition containing fluoroterphenyl compound and pentafluoropropenyl ester compound and application thereof

A technology of pentafluoropropenyl ether and liquid crystal composition, which is applied in liquid crystal materials, chemical instruments and methods, optics, etc., and can solve the problems of response time affecting high-performance displays and high viscosity

Active Publication Date: 2015-06-03
BEIJING BAYI SPACE LCD MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the constraints of the liquid crystal material itself (high viscosity), the response time becomes the main factor affecting high-performance displays

Method used

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  • Liquid crystal composition containing fluoroterphenyl compound and pentafluoropropenyl ester compound and application thereof
  • Liquid crystal composition containing fluoroterphenyl compound and pentafluoropropenyl ester compound and application thereof
  • Liquid crystal composition containing fluoroterphenyl compound and pentafluoropropenyl ester compound and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0103] Take the liquid crystal compound in the following weight percentages and prepare the liquid crystal composition according to the method described in the present invention. The specific ratio is shown in Table 2. The cyclohexyl groups in all the following structural formulas are in trans configuration:

[0104] Table 2: Weight percent and performance parameters of each component in the liquid crystal composition

[0105]

Embodiment 2

[0107] Take the liquid crystal compound in the following weight percentages and prepare the liquid crystal composition according to the method described in the present invention. The specific ratio is shown in Table 3. The cyclohexyl groups in all the following structural formulas are in trans configuration:

[0108] Table 3: Weight percent and performance parameters of each component in the liquid crystal composition

[0109]

[0110]

Embodiment 3

[0112] Take the liquid crystal compound in the following weight percentages and prepare the liquid crystal composition according to the method described in the present invention. The specific ratio is shown in Table 4. The cyclohexyl groups in all the following structural formulas are in trans configuration:

[0113] Table 4: Weight percent and performance parameters of each component in the liquid crystal composition

[0114]

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Abstract

The invention discloses a liquid crystal composition containing a fluoroterphenyl compound and a pentafluoropropenyl ester compound and an application thereof. The liquid crystal composition comprises the following components in parts by weight: 1) 1-30 parts of one or more compounds represented by a general formula I; 2) 1-60 parts of one or more compounds represented by a general formula II; 3) 10-70 parts of one or more compounds represented by a general formula III; and 4) 0-50 parts of compounds represented by general formulas IV-VI. The liquid crystal composition disclosed by the invention has the characteristics of low viscosity, high electrical resistivity, proper optical anisotropy, large elastic constant and the like as well as excellent light stability and heat stability, can reduce the response time of a liquid crystal display so as to solve the problem of slow response of the liquid crystal display, and is applicable to fast-response TFT liquid crystal display devices of TN, IPS and FFS types.

Description

technical field [0001] The invention relates to the field of liquid crystal display technology, in particular to a nematic liquid crystal composition containing a fluorinated terphenyl compound and a pentafluoropropenyl ether compound and its application in a fast-response TN / IPS / FFS type TFT liquid crystal display application. Background technique [0002] At present, liquid crystals have been widely used in the field of information display, and at the same time, some progress has been made in the application in optical communication (S.T.Wu, D.K.Yang. Reflective Liquid Crystal Displays. Wiley, 2001). In recent years, the application fields of liquid crystal compounds have been significantly expanded to various display devices, electro-optic devices, electronic components, sensors, etc. Nematic liquid crystal compounds have been most widely used in flat panel displays, especially for TFT active matrix system. [0003] Liquid crystal display has experienced a long developm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K19/44G02F1/1343
Inventor 郭云鹏陈海光储士红姜天孟未欣陈卯先田会强张琳李青华袁瑾苏学辉
Owner BEIJING BAYI SPACE LCD MATERIALS TECH
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