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

A liquid crystal alignment film that contains a polymer which has an aromatic heterocyclic ring, a primary amino group and a secondary amino group in the structure; and a liquid crystal aligning agent which is capable of forming this liquid crystal alignment film. It is preferable that the aromatic...

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Bibliographische Detailangaben
Hauptverfasser:	YAMAGIWA, HIROKI, TOMOE, KOJI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 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
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Beschreibung
Zusammenfassung:	A liquid crystal alignment film that contains a polymer which has an aromatic heterocyclic ring, a primary amino group and a secondary amino group in the structure; and a liquid crystal aligning agent which is capable of forming this liquid crystal alignment film. It is preferable that the aromatic heterocyclic ring, the primary amino group and the secondary amino group are produced when the liquid crystal alignment film is fired; and the liquid crystal aligning agent specifically contains at least one polymer that is selected from among polyamic acids and polyimides that are imidized products of the polyamic acids, said polyamic acids being reaction products of a tetracarboxylic acid dianhydride and a diamine component that contains at least one diamine selected from among the component (A) and the component (B) described below and a diamine containing a skeleton of the component (C) described below. In the chemical formulae, the symbols are as defined in the description. Component (A): diamines having at le