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Liquid crystal aligning agent, liquid crystal display element and compound

A technology of liquid crystal alignment agent and compound, which is applied in liquid crystal materials, chemical instruments and methods, optics, etc., can solve the problems of poor printability and achieve good voltage retention, excellent display performance, and good vertical alignment.

Active Publication Date: 2014-02-12
JSR CORPORATIOON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is known that if a polymer synthesized by using a large amount of the above-mentioned pretilt angle-expressing monomer is used as a liquid crystal aligning agent, the printability will be significantly deteriorated, and it is considered that good vertical alignment and good printability are at the middle of each other. Relationships that require trade-offs

Method used

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  • Liquid crystal aligning agent, liquid crystal display element and compound
  • Liquid crystal aligning agent, liquid crystal display element and compound
  • Liquid crystal aligning agent, liquid crystal display element and compound

Examples

Experimental program
Comparison scheme
Effect test

Synthetic example B1

[0185] Synthesis Example B1 (N-(2-hydroxy-3-n-octyloxybenzoyloxy)propyl-N, N', N'-triglycidyl-m-xylylenediamine and N-(3- Synthesis of a mixture of hydroxy-2-n-octyloxybenzoyloxy)propyl-N,N',N'-triglycidyl-m-xylylenediamine)

[0186] Under a nitrogen atmosphere, in a 200ml three-necked flask, 18.0 g (0.05 moles) of N, N, N', N'-tetraglycidyl-m-xylylenediamine and 12.5 g of 4-n-octyloxybenzoic acid g (0.05 moles) were mixed and 122.2 g of N-methyl-2-pyrrolidone was added and stirred. The reaction was carried out by stirring it at 100°C for 4 hours under nitrogen to obtain about 150 g of N-(2-hydroxy-3-n-octyloxybenzoyloxy)propyl-N,N',N '-Triglycidyl-m-xylylenediamine and N-(3-hydroxy-2-n-octyloxybenzoyloxy)propyl-N,N',N'-triglycidyl-m-phenylene A solution of a mixture of dimethylamine.

Synthetic example B2

[0187] Synthesis example B2 (N-(2-hydroxyl-3-n-dodecyloxybenzoyloxy) propyl group-N, N', N'-triglycidyl-m-xylylenediamine and N-( Synthesis of a mixture of 3-hydroxy-2-n-dodecyloxybenzoyloxy)propyl-N,N',N'-triglycidyl m-xylylenediamine)

[0188] Under a nitrogen atmosphere, in a 200ml three-necked flask, 18.0 g (0.05 moles) of N, N, N', N'-tetraglycidyl-m-xylylenediamine and 4-n-dodecyloxybenzene 15.3 g (0.05 mol) of formic acid was mixed, and 133.2 g of N-methyl-2-pyrrolidone was added and stirred. The reaction was carried out by stirring it under nitrogen at 100° C. for 4 hours to obtain about 165 g of N-(2-hydroxy-3-n-dodecyloxybenzoyloxy)propyl-N,N’ , N'-triglycidyl-m-xylylenediamine and N-(3-hydroxy-2-n-dodecyloxybenzoyloxy)propyl-N,N',N'-triglycidyl A solution of a mixture of base-m-xylylenediamine.

Synthetic example B3

[0189] Synthesis Example B3 (N-(2-Hydroxy-3-n-dodecyloxybenzoyloxy)propyl-N,N',N'-triglycidyl-4,4'-diaminodiphenyl Methane and N-(3-hydroxy-2-n-dodecyloxybenzoyloxy)propyl-N,N',N'-triglycidyl-4,4'-diaminodiphenyl Synthesis of mixtures of methane)

[0190] Under nitrogen atmosphere, in a 200ml three-necked flask, 21.1g (0.05mol) of N,N,N',N'-tetraglycidyl-4,4'-diaminodiphenylmethane and 4-n- 15.3 g (0.05 mol) of dodecyloxybenzoic acid was mixed, and 145.6 g of N-methyl-2-pyrrolidone was added and stirred. The reaction was carried out by stirring it under nitrogen at 100° C. for 6 hours to obtain about 180 g of N-(2-hydroxy-3-n-dodecyloxybenzoyloxy)propyl-N,N′ , N'-triglycidyl-4,4'-diaminodiphenylmethane with N-(3-hydroxy-2-n-dodecyloxybenzoyloxy)propyl-N,N', A solution of a mixture of N'-triglycidyl-4,4'-diaminodiphenylmethane.

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Abstract

The present invention relates to a liquid crystal aligning agent, a liquid crystal display element and a compound. Provided are a liquid crystal aligning agent having a high voltage holding rate and well vertical aligning performance and printing performance, and a liquid crystal display element having well vertical aligning performance and high voltage holding rate. The liquid crystal aligning agent contains (A) at least a polymer selected from a group composed of polyamic acid and medlin, and a special compound such as a compound represented by the following formula (B-3-2-2-1). The liquid crystal display element contains a liquid crystal aligning membrane formed by the liquid crystal aligning agent.

Description

technical field [0001] The present invention relates to a liquid crystal aligning agent, a liquid crystal display element and a compound. Background technique [0002] As a liquid crystal display element, a TN type liquid crystal display element having a so-called TN type (twisted nematic) liquid crystal cell in which a liquid crystal formed of polyamic acid, polyimide, etc. is formed on the surface of a substrate provided with a transparent conductive film is known. Alignment film is used as a substrate for liquid crystal display elements. Two substrates are arranged opposite to each other, and a nematic liquid crystal layer with positive dielectric anisotropy is formed in the gap to form a box with a sandwich structure. The long axis of the liquid crystal molecules is from One substrate is continuously twisted 90 degrees toward the other. Furthermore, an STN (Super Twisted Nematic) type liquid crystal display element having a higher contrast ratio and a smaller viewing an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13
CPCC09K19/56G02F1/133703
Inventor 熊谷勉秋池利之阿部翼石川晓
Owner JSR CORPORATIOON
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