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

Liquid crystal composition with negative dielectric anisotropy and application thereof

A dielectric anisotropy, liquid crystal composition technology, applied in liquid crystal materials, nonlinear optics, optics, etc., can solve the problems of difficulty in obtaining, slow response speed, and high power consumption

Active Publication Date: 2018-07-03
JIANGSU HECHENG DISPLAY TECHCO
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, it is difficult to obtain a liquid crystal composition with large refraction, large negative dielectric value and rapid response
A liquid crystal composition with a large absolute value of dielectric anisotropy has a high threshold voltage, high power consumption, and a relatively slow response speed.

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 with negative dielectric anisotropy and application thereof
  • Liquid crystal composition with negative dielectric anisotropy and application thereof
  • Liquid crystal composition with negative dielectric anisotropy and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0135] The liquid crystal composition of Example 1 was prepared by each compound listed in Table 2 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:

[0136] Table 2 liquid crystal composition formula and test performance thereof

[0137]

Embodiment 2

[0139] The liquid crystal composition of Example 2 was prepared by each compound listed in Table 3 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:

[0140] Table 3 liquid crystal composition formula and test performance thereof

[0141]

Embodiment 3

[0143] The liquid crystal composition of Example 3 was prepared by each compound listed in Table 4 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:

[0144] Table 4 liquid crystal composition formula and test performance thereof

[0145]

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
isotropization temperatureaaaaaaaaaa
viscosityaaaaaaaaaa
optical anisotropyaaaaaaaaaa
Login to View More

Abstract

The invention discloses a liquid crystal composition with negative dielectric anisotropy. The liquid crystal composition contains one or multiple compounds shown in a general formula I and one or multiple compounds shown in a general formula II. The invention also discloses a liquid crystal display device comprising the liquid crystal composition disclosed by the invention. The liquid crystal composition with negative dielectric anisotropy can meet appropriate large refractive index, also has the characteristics of large dielectric anisotropy absolute value and relatively low rotary viscosity,is excellent in performance and can realize balanced performance in all the aspects. The liquid crystal composition disclosed by the invention is applicable to a liquid crystal display in a VA or IPSmode. (The formula I and the formula II are described in the specification.).

Description

technical field [0001] The invention belongs to the field of liquid crystal materials, and in particular relates to a liquid crystal composition with negative dielectric anisotropy and its application. Background technique [0002] Liquid crystal display elements can be used in various home appliances represented by clocks and electronic calculators, measuring equipment, automotive panels, word processors, computers, printers, televisions, and the like. 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 switching, coplanar transformation), VA (vertical alignment, vertical alignment) and other types. According to the driving method of the component, it is divided into PM (passive matrix, ...

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 Applications(China)
IPC IPC(8): C09K19/44C09K19/12C09K19/30G02F1/137
CPCG02F1/137C09K19/12C09K19/3003C09K19/3066C09K19/3068C09K19/44C09K2019/3025C09K2019/3016C09K2019/301C09K2019/3074C09K2019/3078C09K2019/123C09K2019/122G02F1/13712
Inventor 徐海彬韩文明陈昭远徐爽俞燕蕾
Owner JIANGSU HECHENG DISPLAY TECHCO
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