Liquid crystal composition and display unit containing the same

A technology of liquid crystal composition and display unit, applied in liquid crystal materials, optics, instruments, etc., can solve problems such as low birefringence and viscosity, and achieve good refractive anisotropy, good low-temperature storage, and good dielectric anisotropy The effect of the opposite sex

Active Publication Date: 2017-10-24
DAXIN MATERIALS
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The aforementioned compounds with benzofuran structure have been recently used to make liquid crystal materials because of their wide liquid crystal phase temperature range, good low-temperature mutual solubility,

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 display unit containing the same
  • Liquid crystal composition and display unit containing the same
  • Liquid crystal composition and display unit containing the same

Examples

Experimental program
Comparison scheme
Effect test

Example

[0070] [Example 1, Example 2 and Comparative Example 1]

Example Embodiment

[0071] The liquid crystal compositions of Example 1, Example 2 and Comparative Example 1 were mixed at 25° C. according to the compound composition and content shown in Table 2 below to obtain liquid crystal compositions. The liquid crystal compositions of Example 1, Example 2 and Comparative Example 1 were tested according to the following test methods, and the results obtained are summarized in Table 2 below.

[0072] [testing method]

[0073] 1. Clarification point temperature (T ni , °C): Using a differential scanning calorimeter (DSC) system, the liquid crystal composition is placed on an aluminum plate and weighed precisely 0.5 to 10 mg. The endothermic and exothermic peaks of the liquid crystal composition due to the phase change The starting point is used to determine the phase change temperature. The expression of the phase change is: the crystalline phase is labeled C, the smectic phase is labeled S, the nematic phase is labeled N, and the liquid is labeled I. Among th...

Example

[0082] [Example 3 and Comparative Example 2]

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 relates to a liquid crystal composition containing at least one compound shown in a chemical formula 1, at least one compound shown in a chemical formula 2, and at least one compound shown in a chemical formula 3. The liquid crystal composition is applied in a display unit, has high clear point temperature, good refraction anisotropy, good dielectric anisotropy and good low-temperature storage property and is suitable for requirements of following application. [chemical formula 1] [chemical formula 2] [chemical formula 3] are shown in the description, and ranges of substituent groups in the chemical formulas are shown in the description and the claim.

Description

【Technical field】 [0001] The present invention relates to a liquid crystal composition and a display unit containing the liquid crystal composition, in particular to a liquid crystal composition comprising at least one compound containing a 2,5-benzofuran group and a liquid crystal composition containing the liquid crystal composition Display unit. 【Background technique】 [0002] In order to meet the wide application of liquid crystal display units, various liquid crystal compounds with different structures have been continuously researched and developed. For example, CN 100415730C mentions a benzofuran derivative with the following structure: [0003] [0004] R 11 for C 1 ~C 15 Alkyl or alkenyl, C 1 ~C 15 Alkoxy or alkeneoxy (alkyl alkeneoxy), C 1 -C 15 Fluoroalkyl or fluoroalkenyl; R 12 is H, F, Cl, Br, I, OCF 3 , CN, CF 3 、C 1 ~C 15 Alkyl or alkenyl, C 1 ~C 15 Alkoxy or alkenyloxy, C 1 -C 15 Fluoroalkyl or fluoroalkenyl; n 1 , n 2 and n 3 0~2, but ...

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): C09K19/44G02F1/137
CPCC09K19/44G02F1/137
Inventor 刘信呈李清田王俊智
Owner DAXIN MATERIALS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap