Liquid crystal composition and 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, and can solve problems such as unsuitable panels

Active Publication Date: 2019-04-05
JIANGSU HECHENG DISPLAY TECHCO
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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 liquid crystal display device
  • Liquid crystal composition and liquid crystal display device
  • Liquid crystal composition and liquid crystal display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0235] The compounds and weight percentages listed in Table 5 were formulated with the polymerizable components of Comparative Example 1 to prepare the liquid crystal composition of Example 1, which was filled between the two substrates of the liquid crystal display for performance testing.

[0236] Table 5 liquid crystal composition formula

[0237]

[0238]

[0239] The content and components of the polymerizable component are the same as in Comparative Example 1.

[0240] The performance parameter test result of gained composition is as follows table 6:

[0241] Table 6 Performance parameter test

[0242]

Embodiment 2

[0244] The compounds and weight percentages listed in Table 7 were formulated with the polymerizable components of Comparative Example 1 to prepare the liquid crystal composition of Example 2, which was filled between the two substrates of the liquid crystal display for performance testing.

[0245] Table 7 Liquid crystal composition formula

[0246]

[0247]

[0248] The content and components of the polymerizable component are the same as in Comparative Example 1.

[0249] The performance parameter test result of gained composition is as follows table 8:

[0250] Table 8 Performance parameter test

[0251]

Embodiment 3

[0253] The liquid crystal composition of Example 3 was formulated according to the compounds and weight percentages listed in Table 9 and Table 10, which was filled between the two substrates of the liquid crystal display for performance testing.

[0254] Table 9 liquid crystal composition formula

[0255] 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

[0256] Add the polymerizable components in Table 10 to 100 parts by weight of the liquid crystal composition:

[0257] Table 10 Polymerizable Components

[0258]

[0259] The performance parameter test result of gained composition is as follows table 11:

[0260] Table 11 Performance parameter test

[0261]

[0262] From the com...

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Abstract

The invention discloses a liquid crystal composition. The liquid crystal composition contains at least one polymerizable compound of a formula I, and at least one compound of a formula II. The liquidcrystal 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 invention also provides a liquid crystal display device containing the liquid crystal composition, and when the liquid crystal composition is applied to the liquid crystal display device, the display effect is excellent.

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 electrical appliances for household use, measurement equipment, automotive panels, word processors, electronic notebooks, printers, computers, televisions, etc. As a representative liquid crystal display method, it can include TN (twisted nematic) type, STN type (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 (Ferroelectric Liquid Crystal) type, etc. Also, examples of driving methods for liquid crystal display devices include static driving, multiplex driv...

Claims

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Application Information

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Patent Type & Authority Applications(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 TECHCO
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