LIQUID CRYSTAL ALIGNING AGENT, LIQUID CRYSTAL ALIGNMENT LAYER, AND LIQUID CRYSTAL DISPLAY ELEMENT

PROBLEM TO BE SOLVED: To provide a liquid crystal aligning agent capable of obtaining a liquid crystal alignment layer, which is high in voltage holding performance, is suppressive in sticking just after stress liberation, and is further excellent in sticking relaxation. SOLUTION: The liquid crystal...

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Bibliographische Detailangaben
Hauptverfasser:	KURODA YOSHIHIKO, YOSHIO KOHEI
Format:	Patent
Sprache:	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:	PROBLEM TO BE SOLVED: To provide a liquid crystal aligning agent capable of obtaining a liquid crystal alignment layer, which is high in voltage holding performance, is suppressive in sticking just after stress liberation, and is further excellent in sticking relaxation. SOLUTION: The liquid crystal aligning agent contains a polyamic acid (A) obtained by making a tetracarboxylic acid dianhydride including 1,2,3,4-cyclobutane tetracarboxylic acid dianhydride react with a diamine including a compound represented by formula (1) (in formula (1), RIand RIIare respectively a hydrogen atom or a 1-4C alkyl group), and an imidized polymer (B) of a polyamic acid obtained by making a tetracarboxylic acid dianhydride react with a diamine, wherein an average imidization rate of the polyamic acid (A) and the imidized polymer (B) is 10-50%. COPYRIGHT: (C)2010,JPO&INPIT