Liquid crystal composition and its liquid crystal display device

A technology of liquid crystal composition and compound, which is applied in the direction of liquid crystal materials, instruments, chemical instruments and methods, etc., can solve the problems of panel inapplicability, achieve good low-temperature storage stability, high dielectric anisotropy, and excellent display effect Effect

Active Publication Date: 2022-06-17
JIANGSU HECHENG DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, panels are not suitable for use in situations where the panels are exposed to extremely low temperatures below zero, resulting in crystallization

Method used

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  • Liquid crystal composition and its liquid crystal display device
  • Liquid crystal composition and its liquid crystal display device
  • Liquid crystal composition and its liquid crystal display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0237] The liquid crystal composition of Example 1 was prepared according to the compounds and weight percentages listed in Table 5 and the same as the polymerizable components of Comparative Example 1, and was filled between the two substrates of the liquid crystal display for performance testing.

[0238] Table 5 Liquid crystal composition formula

[0239]

[0240]

[0241] The content and components of the polymerizable components are the same as those of Comparative Example 1.

[0242] The performance parameter test results of the obtained composition are as follows in Table 6:

[0243] Table 6 Performance parameter test

[0244]

Embodiment 2

[0246] According to the compounds and weight percentages listed in Table 7, the same as the polymerizable components of Comparative Example 1, the liquid crystal composition of Example 2 was prepared, which was filled between the two substrates of the liquid crystal display for performance testing.

[0247] Table 7 Liquid crystal composition formula

[0248]

[0249]

[0250] The content and components of the polymerizable components are the same as those of Comparative Example 1.

[0251] The performance parameter test results of the obtained composition are shown in Table 8 below:

[0252] Table 8 Performance parameter test

[0253]

Embodiment 3

[0255] The liquid crystal composition of Example 3 was prepared according to the compounds and the weight percentages listed in Table 9 and Table 10, and the liquid crystal composition was filled between the two substrates of the liquid crystal display for performance testing.

[0256] Table 9 Liquid crystal composition formula

[0257] component code weight percent 3CPP2 4 3CPPCO4O1 5 3C1OWO2 9 2CC1OWO2 9 3CC1OWO2 9 3CC2 15.5 3CCP1 4 5PP1 9 3PPO2 5 3CCV1 11 2C1OWO2 9 4C1OWO2 4.5 2PGPC3 2 3PGPC2 4 total 100

[0258] Add the polymerizable components in Table 10 to 100 parts by weight of the above liquid crystal composition:

[0259] Table 10 Polymerizable Components

[0260]

[0261] The performance parameter test results of the obtained composition are shown in Table 11 below:

[0262] Table 11 Performance parameter test

[0263]

[0264] It can be seen from the co...

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Abstract

The invention discloses a liquid crystal composition, which comprises: at least one polymerizable compound of general formula I; and at least one compound of general formula II. The liquid crystal composition provided by the invention has suitable optical anisotropy, suitable dielectric anisotropy and good low-temperature storage stability while maintaining a relatively high clearing point. The present invention also provides a liquid crystal display device comprising the liquid crystal composition. When the liquid crystal composition is applied to a liquid crystal display device, it has excellent display effect.

Description

technical field [0001] The invention relates to the field of liquid crystal materials, in particular to a liquid crystal composition and a liquid crystal display device thereof. Background technique [0002] Liquid crystal display elements have developed from clocks and calculators to various household electrical equipment, measuring equipment, automotive panels, word processors, electronic notepads, printers, computers, televisions, and the like. Typical liquid crystal display systems include TN (Twisted Nematic) type, STN (Super Twisted Nematic) type, DS (Dynamic Light Scattering) type, GH (Guest-Host) type, IPS (In-Plane Switching) type, OCB (Optically Compensated Birefringence) type, ECB (Voltage Controlled Birefringence) type, VA (Vertical Alignment) type, CSH (Color Super Vertical) type or FLC (Ferric Liquid Crystal) type and the like. In addition, as a driving method of the liquid crystal display device, static driving, multiplex driving, simple matrix method, active...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K19/46C09K19/12G02F1/1333
CPCG02F1/1333C09K19/12C09K19/46C09K2019/122C09K2019/123C09K2019/0448
Inventor 王立威马文阳徐海彬张文琦
Owner JIANGSU HECHENG DISPLAY TECH CO LTD
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