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Liquid crystal composition

A liquid crystal composition and compound technology, applied in liquid crystal materials, chemical instruments and methods, etc., can solve problems such as low temperature stability weakness

Inactive Publication Date: 2017-06-23
DONGJIN SEMICHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, due to the problem of miscibility, it may cause an Achilles heel to low temperature stability

Method used

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  • Liquid crystal composition
  • Liquid crystal composition
  • Liquid crystal composition

Examples

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Embodiment Construction

[0056] The following preferred examples are provided to facilitate the understanding of the present invention. However, the following examples are provided for easier understanding of the present invention, and the content of the present invention is not limited to the following examples. In the following examples and comparative examples, the liquid crystal compounds are shown in Table 3 below.

[0057] [table 3]

[0058]

[0059] Examples and Comparative Examples

[0060] The physical properties of the liquid crystal compositions prepared in Examples and Comparative Examples were evaluated according to the following methods. Unless otherwise specified, the physical properties of the liquid crystal compositions were measured without adding other additives to the liquid crystal compositions prepared in the examples and comparative examples.

[0061] (1) Transparent point (Tni)

[0062] A liquid crystal compound to be measured for the clearing point is dropped on a slid...

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Abstract

The invention relates to a liquid crystal composition which includes more than 4 specified liquid crystal compounds. According to the invention, since the liquid crystal composition contains liquid crystal compounds which have smectic phase or higher recrystallization temperature at best proportions, the liquid crystal composition can display excellent low temperature stability and high transparent point and other physical properties, the liquid crystal composition can be properly applied to all kinds of liquid crystal display elements such as VA, MVA, PVA, PS-VA, PALC, FFS, PS-FFS, IPS or PS-IPS.

Description

technical field [0001] The present invention relates to a liquid crystal composition exhibiting excellent low-temperature stability and high clearing point and other various physical properties. Background technique [0002] A single liquid crystal compound constituting a liquid crystal formulation is an organic substance with a molecular weight of about 200 to 600 g / mol, usually having a long rod-like molecular structure. The molecular structure of the liquid crystal compound can be divided into a core group for maintaining straightness, a terminal group for flexibility, and a linkage group for specific purposes. Among them, the end group remains flexible because one or both sides are formed into a pliable chain (alkyl, alkoxy, alkenyl, etc.), and the other side or the side of the central group is introduced into a polar group (F, CN, OCF 3 etc.) to control the physical properties of liquid crystals such as dielectric constant. [0003] Liquid crystal display (LCD) can b...

Claims

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Application Information

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IPC IPC(8): C09K19/44C09K19/30C09K19/20
CPCC09K19/20C09K19/3003C09K19/44C09K2019/3004C09K2019/301C09K2019/3016C09K2019/3019C09K19/12C09K19/3001C09K19/42C09K2019/0466
Inventor 李仙熙金奉熙赵泰杓金炳旭
Owner DONGJIN SEMICHEM CO LTD
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