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Liquid crystal alignment agent and liquid crystal display element

A technology of liquid crystal aligning agent and liquid crystal aligning film, which is applied in the directions of liquid crystal materials, chemical instruments and methods, instruments, etc., can solve the problems of poor display quality of liquid crystal display elements, long storage time, and damage to the uniformity of the coating film. Shows effects of suppression of quality deterioration, uniform film quality, excellent electrical properties and heat resistance

Active Publication Date: 2010-12-22
JSR CORPORATIOON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the currently known liquid crystal alignment agent is used, if it is placed for a long time, it is pointed out that the uniformity of the coating film is damaged, or pores are generated, and the display quality of the obtained liquid crystal display element

Method used

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  • Liquid crystal alignment agent and liquid crystal display element
  • Liquid crystal alignment agent and liquid crystal display element
  • Liquid crystal alignment agent and liquid crystal display element

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0198] Synthesis Example A-1

[0199] According to the following synthetic route figure 1 To synthesize compound (A-1-1).

[0200]

[0201] synthetic route figure 1

[0202] Under a nitrogen atmosphere, in a 5000 mL three-necked flask, 266.5 g of compound (A-1-1a), 253.3 g of p-chlorobenzenesulfonyl chloride, and 1000 mL of dichloromethane were added, and the mixture was stirred at 0°C. Here, a solution in which 180 mL of triethylamine was dissolved in 200 mL of dichloromethane was added dropwise for 30 minutes, and stirred at room temperature (25°C) for 3 hours to perform the reaction. Next, 1000 mL of dichloromethane was added to the obtained reaction mixture, and the obtained organic layer was washed with distilled water. After the washed organic layer was dried with magnesium sulfate, the solvent was removed by a rotary evaporator to obtain a colorless viscous liquid. 3000 mL of ethanol was added to this colorless viscous liquid, and after fully stirring, the precipitated w...

Example Embodiment

[0209] Synthesis Example A-2

[0210] According to the following synthetic route figure 2 Compound (A-2-1) was synthesized.

[0211]

[0212] In a nitrogen atmosphere, 142.2g of 3,5-bis(diallylamino)phenol (compound (B)), 220.2g of ethylene carbonate, 16.1g of tetrabutylammonium bromide and 1000 mL of N,N-dimethylformamide was stirred at 150°C for 6 hours to perform the reaction. 2000 mL ethyl acetate and 500 mL methanol were added to the obtained reaction mixture, and the obtained organic layer was washed with 1 equivalent sodium hydroxide aqueous solution and distilled water in sequence, dried with magnesium sulfate, and the solvent was removed by a rotary evaporator to obtain a crude product. The obtained composition was passed through a chromatographic column (filler: silica gel, developing solvent: hexane / ethyl acetate = 4 / 1 (weight ratio)), and the solvent was removed under reduced pressure to obtain a light orange viscous liquid. Compound (A-2-1a) 138.6g.

[0213] Next, un...

Example Embodiment

[0216] Synthesis Example A-3

[0217] According to the following synthetic route image 3 Compound (A-2-2) was synthesized.

[0218]

[0219] synthetic route image 3

[0220] Under a nitrogen atmosphere, 238.2 g of compound (A-2-2a), 253.3 g of p-chlorobenzenesulfonyl chloride, and 1000 mL of dichloromethane were added to a 5,000 mL three-necked flask, and the mixture was stirred at 0°C. Here, a solution in which 180 mL of triethylamine was dissolved in 200 mL of dichloromethane was added dropwise within 30 minutes, and then stirred at room temperature for 3 hours to perform the reaction. After the reaction was terminated, 1000 mL of dichloromethane was added to the obtained reaction mixture, and the obtained organic layer was washed with distilled water, and then dried with magnesium sulfate, and the solvent was removed by a rotary evaporator to obtain a colorless viscous liquid. 3000 mL of ethanol was added to the obtained colorless viscous liquid, and after thorough stirring...

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Abstract

The invention relates to a liquid crystal alignment agent and a liquid crystal display element with the object to provide a liquid crystal alignment film making the film components evenly distributed and having improved electrical characteristics and heat resistance and an improved liquid crystal alignment agent as well. The liquid crystal alignment agent comprises at least a polymer chosen from a group consisting polyamide and polyamide imide; the molecule constituting the polymer contains at least one part of a radical group represented by (A') ; in the (A') of the formula RI-(XI)n1-RII-O-XII-COO-(RIIIO)n2-*(A'), R1 represents alkyl with 1-30 carbon atoms or fluroalkyl with 1-30 carbon atoms; RII represents for a single bone, a methylene or an alkylene with 2-30 carbon atoms; RIII represents for an alkylene with 2-5 carbon atoms; XI and XII represent respectively for a two valent alicyclic radical, a two valent heterocyclic radical, a sub-aryl or a two velent miscellaneous aromatic radical; the plural XI radical groups can either be identical or different; n1 represents for an integer of 2-5; n2 represents for an integer of 0-10; "*" represents for a connecting bond.

Description

technical field [0001] The invention relates to a liquid crystal aligning agent, a liquid crystal aligning film and a liquid crystal display element. In more detail, it relates to a liquid crystal aligning agent capable of forming a liquid crystal aligning film with uniform film quality, excellent electrical properties and heat resistance, and excellent applicability, and capable of displaying with high quality and suppressing display when driven for a long time. Liquid crystal display elements with poor quality. Background technique [0002] Currently, known liquid crystal display elements can be classified according to the modes shown below according to the electrode structure and the physical properties of the liquid crystal molecules used. [0003] First, make a substrate for liquid crystal display elements on which a liquid crystal alignment film is formed on the surface of a substrate provided with a transparent conductive film, and arrange the two oppositely, and for...

Claims

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Application Information

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IPC IPC(8): C09K19/56G02F1/1337C08G73/10C07C219/34C07C217/84
CPCC08G73/10C08G73/1007C08L79/08C09K19/56G02F1/1337
Inventor 米仓勇秋池利之阿部翼阿久津光男
Owner JSR CORPORATIOON
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