Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

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, chemical instruments and methods, etc., can solve the problems of low absolute value of dielectric anisotropy, poor display effect of devices, and insufficient optical anisotropy, etc. The effect of the absolute value of electrical anisotropy, high optical anisotropy, and good low-temperature miscibility

Active Publication Date: 2022-02-22
ANQING FEIKAI NEW MATERIAL CO LTD
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing liquid crystal composition can obtain better characteristics, but this type of composition has a low clearing point, high viscosity, insufficient optical anisotropy, low absolute value of dielectric anisotropy, and low voltage retention rate. Forming a liquid crystal display with large optical anisotropy, suitable absolute value of dielectric anisotropy, good stability, and good contrast is not helpful, and directly leads to adverse consequences such as low contrast, slow response speed, and poor display effect of the device. , such as foreign patent documents WO9202597, WO9116398, WO9302153, WO9116399, Chinese patent documents CN1157005A, etc., have the above-mentioned shortcomings to varying degrees

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 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

[0282] The liquid crystal composition of Example 1 was formulated according to the compounds and weight percentages listed in Table 4, and it was filled between the two substrates of the liquid crystal display for performance testing. The test data are shown in the following table:

[0283] Table 4 liquid crystal composition formula and test performance thereof

[0284]

Embodiment 2

[0286]The liquid crystal composition of Example 2 was prepared by each compound listed in Table 5 and the weight percentage, which was filled between the two substrates of the liquid crystal display for performance testing. The test data are shown in the following table:

[0287] Table 5 liquid crystal composition formula and test performance thereof

[0288]

[0289]

Embodiment 3

[0291] The liquid crystal composition of Example 3 was prepared by each compound listed in Table 6 and the weight percentage, which was filled between the two substrates of the liquid crystal display for performance testing. The test data are shown in the following table:

[0292] Table 6 liquid crystal composition formula and test performance thereof

[0293]

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
temperatureaaaaaaaaaa
Login to View More

Abstract

The invention discloses a liquid crystal composition and a liquid crystal display device thereof. The liquid crystal composition comprises: at least one compound of general formula I, at least one compound of general formula II, and at least one compound of general formula III. The liquid crystal composition provided by the present invention has good low-temperature mutual solubility and high optical anisotropy while maintaining a high clearing point and a large absolute value of dielectric anisotropy. The liquid crystal composition is used in liquid crystal displays When used in the device, it can make the liquid crystal display device show the advantages of good weather resistance and high contrast.

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 (LCD) has been developed rapidly due to its small size, light weight, low power consumption and excellent display quality, and is especially widely used in portable electronic information products. As the size of LCD screens for portable computers, office applications, and video applications increases, LCDs can be used for large-screen displays and eventually replace Cathode Ray Tube (CRT) displays. [0003] According to the type of display mode, it is divided into PC (phase change, phase change), TN (twist nematic, twisted nematic), STN (super twisted nematic, super twisted nematic), ECB (electrically controlled birefringence, electrically controlled birefringence), OCB (optically compensated bend, optically compensated bending), IPS (in-plane sw...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C09K19/44C09K19/46
CPCC09K19/44C09K19/46
Inventor 沈天宇丁文全徐海彬严加浩
Owner ANQING FEIKAI NEW MATERIAL CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com