LIQUID CRYSTAL ALIGNMENT AGENT, LIQUID CRYSTAL ALIGNMENT FILM, AND LIQUID CRYSTAL DISPLAY DEVICE USING SAME

Provided is a liquid crystal alignment agent with which it is possible to obtain a liquid crystal alignment film that maintains the voltage holding ratio even after exposure to high temperatures and high humidity. The liquid crystal alignment agent is characterized by containing at least one polymer...

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Hauptverfasser: OTA SYOTARO, ASHIZAWA RYOICHI
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ASHIZAWA RYOICHI
description Provided is a liquid crystal alignment agent with which it is possible to obtain a liquid crystal alignment film that maintains the voltage holding ratio even after exposure to high temperatures and high humidity. The liquid crystal alignment agent is characterized by containing at least one polymer selected from the group consisting of a polyimide precursor obtained by polymerizing either diamine component (1) or diamine component (2) below and a tetracarboxylic acid component; and a polyimide obtained by imidizing the polyimide precursor. The diamine component (1) is a diamine component containing a diamine having a protective group that is substituted with a hydrogen atom by heat, and a diamine having a siloxane backbone, and the diamine component (2) is a diamine component containing a diamine having a siloxane backbone and a protective group that is substituted with a hydrogen atom by heat. 本发明提供一种液晶取向剂,所述液晶取向剂能得到即使暴露于高温高湿后,也维持了电压保持率的液晶取向膜。本发明的液晶取向剂的特征在于,含有选自由聚酰亚胺前体和聚酰亚胺构成的组中的至少一种聚合物,该聚酰亚胺前体通过使下述二胺成分(1)和
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language chi ; eng
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subjects CHEMISTRY
COMPOSITIONS BASED THEREON
DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING
FREQUENCY-CHANGING
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
NON-LINEAR OPTICS
OPTICAL ANALOGUE/DIGITAL CONVERTERS
OPTICAL LOGIC ELEMENTS
OPTICS
ORGANIC MACROMOLECULAR COMPOUNDS
PHYSICS
TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
THEIR PREPARATION OR CHEMICAL WORKING-UP
title LIQUID CRYSTAL ALIGNMENT AGENT, LIQUID CRYSTAL ALIGNMENT FILM, AND LIQUID CRYSTAL DISPLAY DEVICE USING SAME
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