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Liquid crystal aligning agent, liquid crystal alignment film and liquid crystal display element

A liquid crystal display technology, applied in the field of liquid crystal alignment agent, liquid crystal alignment film and liquid crystal display elements, can solve the problems of static electricity, dust generation, and the inability to rub the liquid crystal alignment film evenly

Active Publication Date: 2016-12-14
NISSAN CHEM IND LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the brushing method of rubbing the surface of a liquid crystal alignment film made of polyimide or the like has problems of generating dust and static electricity.
In addition, due to the high-definition of liquid crystal display elements in recent years, the unevenness caused by the electrodes on the corresponding substrate or the switching active elements for liquid crystal driving, it is impossible to rub the surface of the liquid crystal alignment film uniformly with a cloth, and it is impossible to achieve a uniform liquid crystal. orientation

Method used

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  • Liquid crystal aligning agent, liquid crystal alignment film and liquid crystal display element
  • Liquid crystal aligning agent, liquid crystal alignment film and liquid crystal display element
  • Liquid crystal aligning agent, liquid crystal alignment film and liquid crystal display element

Examples

Experimental program
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Effect test

preparation example Construction

[0240] [Preparation of polymer composition]

[0241] The polymer composition used in the present invention is preferably prepared in the form of a coating liquid so as to be suitable for forming a liquid crystal aligning film. That is, the polymer composition used in the present invention is preferably prepared in the form of a solution in which a resin component for forming a resin coating is dissolved in an organic solvent. Here, the resin component refers to a resin component containing the above-mentioned photosensitive side chain type polymer capable of expressing liquid crystallinity. In this case, the content of the resin component is preferably 1% by mass to 20% by mass, more preferably 3% by mass to 15% by mass, particularly preferably 3% by mass to 10% by mass.

[0242] In the polymer composition of this embodiment, the above-mentioned resin components may all be the above-mentioned photosensitive side chain polymers capable of exhibiting liquid crystallinity, but t...

Embodiment

[0403] Hereinafter, although an Example is used and this invention is demonstrated, this invention is not limited to this Example.

[0404] The analysis apparatus and analysis conditions used for the synthesis of the specific glycidyl compound of this invention are shown below.

[0405] ( 1 H-NMR measurement)

[0406] Device: Varian NMR System 400NB (400MHz) (manufactured by Varian)

[0407] Determination solvent: CDCl 3 (deuterochloroform), DMSO-d 6 (Deuterated Dimethyl Sulfoxide)

[0408] Reference material: TMS (tetramethylsilane) (δ: 0.0ppm, 1 H), CDCl 3 (δ: 77.0ppm, 13 c)

[0409] Abbreviations used in Examples are as follows.

[0410]

[0411]

[0412] MA1 was synthesized by the synthesis method described in the patent document (WO2011-084546).

[0413] MA2 was synthesized by the synthesis method described in the patent document (Japanese Patent Laid-Open No. 9-118717).

[0414]

[0415] T1: Primid XL-552: (N,N,N',N'-tetrakis-(2-hydroxyethyl)adipamide) ...

Embodiment 1

[0467] 33.33 g of BCS and 0.15 g of T1 were added to 50.0 g of methacrylic polymer solution M1 obtained in polymerization example 1, and it stirred at room temperature for 3 hours, and obtained liquid crystal aligning agent AL1.

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Abstract

The present invention provides: an in-plane switching liquid crystal display element which is provided with alignment control ability with high efficiency and has excellent image burn-in characteristics; and a novel composition for producing the liquid crystal display element. The present invention solves the above-described problem by a composition which contains (A) a photosensitive side-chain polymer which exhibits liquid crystallinity within a specific temperature range, (B) a compound that has 2-6 nitrogen atoms, to which at least one hydroxyalkyl group is bonded, in each molecule, and (C) an organic solvent.

Description

technical field [0001] The present invention relates to a liquid crystal aligning agent for producing a transverse electric field drive type liquid crystal display element, a liquid crystal aligning film obtained from the liquid crystal aligning agent, and a liquid crystal display element using the liquid crystal aligning film. More specifically, it relates to a novel composition for producing a liquid crystal display element excellent in image sticking characteristics. Background technique [0002] It is known that liquid crystal display elements are light in weight, thin in cross-section, and low in power consumption, and have achieved remarkable development in recent years, such as being used for large-scale television applications. The liquid crystal display element is constituted by sandwiching a liquid crystal layer between a pair of transparent substrates provided with electrodes, for example. Also, in a liquid crystal display element, an organic film containing an o...

Claims

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Application Information

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IPC IPC(8): C08L101/12C08K5/16C08L33/10C09K19/38G02F1/1337
CPCC09K19/3833C08K5/16C08L33/10C08L101/12G02F1/1337
Inventor 名木达哉川野勇太川月喜弘近藤瑞穂
Owner NISSAN CHEM IND LTD
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