Unlock instant, AI-driven research and patent intelligence for your innovation.

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, chemical instruments and methods, etc., can solve the problems of unstable storage at low temperature, insufficient transmittance, insufficient contrast, etc., to improve contrast, increase transmittance, and improve low temperature The effect of stability

Active Publication Date: 2021-02-02
JIANGSU HECHENG DISPLAY TECHCO
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Dioxane compounds are a class of high-quality monomers in liquid crystal monomers, which are widely used in the field of liquid crystals, but there are still some technical problems to be solved in the prior art, such as small K value, insufficient contrast, and insufficient transmittance , low temperature storage instability and other issues

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 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

[0090] This embodiment provides a liquid crystal composition, and its specific composition and performance parameters are shown in Table 2.

[0091] Table 2

[0092]

[0093]

Embodiment 2

[0095] This embodiment provides a liquid crystal composition, and its specific composition and performance parameters are shown in Table 3.

[0096] table 3

[0097]

[0098]

Embodiment 3

[0100] This embodiment provides a liquid crystal composition, and its specific composition and performance parameters are shown in Table 4.

[0101] Table 4

[0102]

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 provides a liquid crystal composition and a liquid crystal display device. The liquid crystal composition comprises at least one compound as shown in a formula I, at least one compound as shown in a formula II, at least one compound selected from compounds as shown in formulas III-1 to III-3, at least one compound as shown in a formula IV and at least one compound as shown in a formula V. The liquid crystal composition disclosed by the invention has the advantages of high contrast ratio, high penetration rate and improved low-temperature storage stability, is suitable for a liquid crystal system with large dielectric anisotropy and low driving voltage, can meet the low-voltage driving requirement on a liquid crystal display in technical development, and is suitable for display modes with small refractive indexes such as ECB.

Description

technical field [0001] The invention belongs to the field of liquid crystal materials, and relates to a liquid crystal composition and a liquid crystal display device. 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. Liquid crystals are mainly used as dielectrics in liquid crystal display devices because the optical properties of such substances can be changed by applying voltage. Therefore, liquid crystal materials must have good chemical and thermal stability, as well as good stability to electric fields and electromagnetic radiation. [0003] Compared with traditional di...

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): C09K19/44C09K19/46
CPCC09K19/44C09K19/46
Inventor 潘帝可刘云云
Owner JIANGSU HECHENG DISPLAY TECHCO