Liquid crystal alignment agent, liquid crystal alignment film, liquid crystal display element, polymer and compound

A liquid crystal alignment agent, polymer technology, applied in the fields of liquid crystal display elements, liquid crystal alignment agents, polymers and compounds, and liquid crystal alignment films

Active Publication Date: 2015-11-18
JSR CORPORATIOON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, reflective liquid crystal display elements do not use a backlight light source, but use reflected light from outside light such as sunlight to display, so there is a problem that power consumption is lower than that of transmissive liquid crystal display elements. Advantages, but on the other hand will be exposed to strong UV rays

Method used

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  • Liquid crystal alignment agent, liquid crystal alignment film, liquid crystal display element, polymer and compound
  • Liquid crystal alignment agent, liquid crystal alignment film, liquid crystal display element, polymer and compound
  • Liquid crystal alignment agent, liquid crystal alignment film, liquid crystal display element, polymer and compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0163] Hereinafter, the present invention will be further specifically described using examples, but the present invention is not limited by these examples.

[0164] The solution viscosity of each polymer solution in the synthesis example and the imidization rate of polyimide were measured by the following method.

[0165] [Solution Viscosity of Polymer Solution]

[0166] The solution viscosity [mPa·s] of the polymer solution was measured at 25° C. using an E-type rotational viscometer for a solution having a polymer concentration of 10% by weight using a predetermined solvent.

[0167] [Imidation rate of polyimide]

[0168] Put the solution of polyimide into pure water, fully dry the obtained precipitate under reduced pressure at room temperature, dissolve it in deuterated dimethyl sulfoxide, use tetramethylsilane as a reference substance, and determination 1 H-NMR ( 1 H-Nuclear magnetic resonance, 1 H-NMR). according to income 1 From the H-NMR spectrum, the imidizatio...

Synthetic example 1

[0172] [Synthesis Example 1: Synthesis of Compound (D-1)]

[0173] Compound (D-1) was synthesized according to Scheme 1 below.

[0174] [chemical 9]

[0175]

[0176] In a 500mL three-necked flask equipped with a thermometer and a nitrogen introduction tube, add the compound represented by the above formula (1-1-1A) (wherein, the cis-trans isomerism of 1,4-cyclohexylene is trans isomerism respectively Construct) 35.7g, 2,4-dinitrochlorobenzene 20.3g, potassium carbonate 15.2g and N,N-dimethylacetamide 300mL, react at 100°C for 4 hours. After completion of the reaction, 1 L of ethyl acetate, 500 mL of tetrahydrofuran, and 1 L of 1M hydrochloric acid were added to remove the aqueous layer, followed by washing with water three times. Next, magnesium sulfate was added to the organic layer, dried, concentrated, and the precipitated crystals were recovered and dried to obtain 36.6 g of light yellow crystals of the compound represented by the above formula (1-1-1B).

[0177] Ne...

Synthetic example 2

[0178] [Synthesis Example 2: Synthesis of Compound (D-2)]

[0179] Compound (D-2) was synthesized according to Scheme 2 below.

[0180] [chemical 10]

[0181]

[0182] In a 500mL three-neck flask equipped with a dropping funnel, a thermometer, and a nitrogen introduction tube, add the compound represented by the above formula (1-1-1A) (wherein, the cis-trans isomerism of 1,4-cyclohexylene is respectively (trans isomer) 35.7g, tetrahydrofuran 200mL and triethylamine 11.13g, cooled in an ice bath to below 5°C. Next, a solution obtained by dissolving 23.0 g of 3,5-dinitrobenzoyl chloride in 100 mL of tetrahydrofuran was slowly dropped over 30 minutes, and the mixture was returned to room temperature and reacted for 1 hour. After completion of the reaction, add 500 mL of ethyl acetate and 500 mL of 1M hydrochloric acid aqueous solution for liquid separation, and then wash the organic layer with water three times, then dry the organic layer with magnesium sulfate, concentrate,...

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PUM

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Abstract

The invention provides a liquid crystal aligning agent, a liquid crystal alignment film, a liquid crystal display component, a polymer and a compound. The liquid crystal aligning agent can show excellent liquid crystal orientation and light resistance, and can form a film which has good stripping property for a substrate. The liquid crystal aligning agent contains at least a polymer selected from a group consisting polyamide acid, polyamide acid ester, polymide, and polysiloxane, and contains polymer (P1) with the radical represented by the following formula (0) as the polymer.

Description

technical field [0001] The invention relates to a liquid crystal alignment agent, a liquid crystal alignment film, a liquid crystal display element, a polymer and a compound, in particular to a liquid crystal alignment agent suitable for manufacturing a vertical alignment type liquid crystal display element and the like. Background technique [0002] In the past, liquid crystal display elements have developed a variety of driving methods with different electrode structures and the physical properties of the liquid crystal molecules used. For example, twisted nematic (twistednematic, TN) type and supertwisted nematic (supertwistednematic, STN) type are known. , vertical alignment (vertical alignment, VA) type, multi-quadrant vertical alignment (multi-domain vertical alignment, MVA) type, coplanar switching (in-plane switching, IPS) type, fringe field switching (fringe field switching, FFS) type, optically compensated bending (optically compensatedbend , OCB) type and other li...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K19/56C08G73/10C07C217/90C07C213/02C07C229/60C07C227/04G02F1/1337
CPCY02P20/582C08G73/10C08L79/08C08L83/04G02F1/1337
Inventor 秋池利之内山克博菅野尚基野口峻一
Owner JSR CORPORATIOON
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