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A liquid crystal composition

A liquid crystal composition and the technology of the composition are applied in the directions of liquid crystal materials, vehicle parts, optical observation devices, etc., to achieve the effects of high display contrast and high stability

Active Publication Date: 2019-08-16
YANTAI XIANHUA CHEM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many types of TFT screens: VA (PVA, SVA), S-IPS, TN, etc. TN-TFT is very suitable for its fast response speed, high display contrast, good light and heat stability, and wide temperature range. Used in vehicle-mounted display systems, it can display in high and low temperature environments, has good light and thermal stability, and high display stability and reliability. TN-TFT liquid crystal materials have been used in vehicle systems. Foreign countries mainly supply such products to MERCK in Germany and DIC in Japan. There is no good product supply market in China.

Method used

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  • A liquid crystal composition
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The formula ratio of the liquid crystal composition is as follows:

[0042] serial number compound Proportion (wt%) 1 3BB(2F)U(F) 10 2 4BB(F)B(2F)U(F) 8 3 3HHB(F)B(3F) 5 4 2BB(F)B3 3 5 2BB(F)B4 3 6 3HHBB(3F) 3 7 3HHB(3F) 5 8 5HHB(3F) 5 9 3HHB(2F) 10 10 4BBB(3F) 5 11 3HHV 6 12 5HHV 9 13 B(3F)HHV 10 14 1BHHV 10 15 3HB(F)B(F)H3 4 16 5HB(F)B(F)H3 4 total 100

[0043] The test data of the liquid crystal composition obtained in the present embodiment is as follows:

[0044]

[0045] Temperature effect data (Pitch=40.0um)

[0046]

Embodiment 2

[0048] The formula ratio of the liquid crystal composition is as follows:

[0049] serial number compound Proportion (mass%) 1 3BB(2F)U(F) 8 2 5BB(F)B(2F)U(F) 8 3 2HHB(F)B(3F) 10 4 3HHBB(3F) 5 5 3HHB(3F) 6 6 5HHB(3F) 4 7 3HBU(F) 7 8 B(3F)HHV 8 9 B(3F)HH3V 6 10 3HHV 10 11 3HH1V 6 12 1BHHV 8 13 B(2F)HHV 6 14 4HEHB(3F) 4 15 3HHEB(3F) 4 total 100

[0050] Test Data

[0051]

[0052] Temperature effect data (Pitch=40.0um)

[0053]

Embodiment 3

[0055] The formula ratio of the liquid crystal composition is as follows:

[0056] serial number compound Proportion (mass%) 1 3BB(2F)U(F) 6 2 4BB(F)B(2F)U(F) 5 3 2HHB(F)B(3F) 3 4 2BB(F)B36 3 5 2BB(F)B4 3 6 3BB(F)B2 3 7 5BB(F)B4 3 8 3HHB(F) 6 9 3HHB(2F) 5 10 5HHEB(F) 5 11 3HBB(2F) 3 12 2HBB(F) 4 13 3HBO2 8 14 3HHV 8 15 5HHV 14 16 1BHHV 10 17 B(F)HHV 5 18 3HB(F)B(F)H5 3 19 3HB(F)B(F)4 3 total 100

[0057] Test Data

[0058]

[0059] Temperature effect data (Pitch=44.0um)

[0060]

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Abstract

The present invention relates to a liquid crystal composition that can be applied to a vehicle display system, including compounds with structures shown in general formulas I to VI. The liquid crystal composition provided by the present invention has a wide temperature range (-50°C---110°C) , with high-definition bright spots (110°C), ultra-low S—N point (‑50°C), wide range of refractive index (0.100—0.125), and wide voltage range of 1.25V—3.00V; this liquid crystal composition has high stability and high display contrast High, can adapt to the needs of ultra-low and ultra-high temperature changes in the automotive environment.

Description

technical field [0001] The invention relates to a liquid crystal composition, in particular to a liquid crystal composition applied to a vehicle system, and belongs to the technical field of liquid crystal materials. Background technique [0002] With the rapid development of my country's economy and the significant improvement of national living standards, cars have entered the homes of ordinary people, and more people have higher requirements for the performance and comfort of cars. In the past, people used to use the mechanical dashboard of traditional cars to Read out the various data of the car (such as speed, fuel consumption, mileage, etc.), and now with the innovation of technology and the rapid development of communication networks, people need more intuitive and modern terminal display devices to meet people's instant communication , navigation and entertainment. Therefore, the vehicle-mounted liquid crystal display is ready to come out. With its unique characterist...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K19/44B60R1/00
CPCB60R1/00C09K19/44
Inventor 王培祥丰佩川徐亮房凤梅李梅花
Owner YANTAI XIANHUA CHEM TECH CO LTD