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

High-transmittance liquid crystal composition with negative dielectric anisotropy and display device thereof

A liquid crystal composition, anisotropic technology, applied in liquid crystal materials, chemical instruments and methods, etc., can solve problems such as short life cycle

Active Publication Date: 2018-07-03
JIANGSU HECHENG DISPLAY TECHCO
View PDF14 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Liquid crystal materials are an important part of liquid crystal displays, and currently global liquid crystal displays have a great market demand and are mostly used in electronic and electrical products, but their life cycle is short

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
  • High-transmittance liquid crystal composition with negative dielectric anisotropy and display device thereof
  • High-transmittance liquid crystal composition with negative dielectric anisotropy and display device thereof
  • High-transmittance liquid crystal composition with negative dielectric anisotropy and display device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0152] The liquid crystal composition of Example 1 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:

[0153] Table 3 liquid crystal composition formula and test performance thereof

[0154]

[0155]

[0156] Comparing Example 1 and Comparative Example 1, it can be found that the negative liquid crystal composition of the present invention has a large absolute value of negative dielectric anisotropy, higher optical anisotropy, higher clearing point and larger penetration rate.

Embodiment 2

[0162] 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:

[0163] Table 5 liquid crystal composition formula and test performance thereof

[0164]

Embodiment 3

[0166] 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:

[0167] Table 6 liquid crystal composition formula and test performance thereof

[0168]

[0169] Comparing Example 2, Example 3 and Comparative Example 2, it can be found that the negative liquid crystal composition of the present invention has a large absolute value of negative dielectric anisotropy, higher optical anisotropy, and higher clearing point and greater penetration.

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

No PUM Login to View More

Abstract

The invention discloses a high-transmittance liquid crystal composition with negative dielectric anisotropy. The liquid crystal composition contains: one or more compounds as shown in general formulaI-1 and / or I-2, which account for 20-60% of the total weight of a negative liquid crystal composition; one or more compounds as shown in a general formula II, which account for 12-40% of the total weight of the negative liquid crystal composition; one or more compounds as shown in general formula III, which account for 12-40% of the total weight of the negative liquid crystal composition; and oneor more compounds as shown in general formula IV, which account for 20-60% of the total weight of the negative liquid crystal composition. The invention also discloses a liquid crystal display devicecomprising the liquid crystal composition. The formulae are as shown in the specification.

Description

technical field [0001] The invention relates to a liquid crystal composition, in particular to a liquid crystal composition with a large absolute value of negative dielectric anisotropy, a relatively high clearing point, a relatively large optical anisotropy, good low-temperature mutual solubility, and relatively high voltage retention. A liquid crystal composition with characteristics such as high rate, good high temperature stability, good ultraviolet performance, and higher transmittance, and a liquid crystal display device comprising the liquid crystal composition. 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 (...

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
IPC IPC(8): C09K19/44
CPCC09K19/44
Inventor 周振婷徐海彬韩文明陈昭远马文阳
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