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

Provided are: a liquid crystal alignment agent which can obtain a liquid crystal alignment film having a high film strength, a suppressed AC afterimage, and a high voltage retention rate even after being exposed for a long period of time under high temperature; the liquid crystal alignment film obta...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YUKI, TATSUYA, KONISHI, REIKU
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ADHESIVES 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 DYES FREQUENCY-CHANGING MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PHYSICS POLISHES TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	Provided are: a liquid crystal alignment agent which can obtain a liquid crystal alignment film having a high film strength, a suppressed AC afterimage, and a high voltage retention rate even after being exposed for a long period of time under high temperature; the liquid crystal alignment film obtained from the liquid crystal alignment agent; and a liquid crystal display element using the same. The liquid crystal alignment agent containing component (A) below and the compound represented by formula (1) below. Component (A): a polymer component containing a polymer (A) selected from the group consisting of: a polyimide precursor obtained by causing a polymer reaction between a diamine component and a tetracarboxylic acid derivative component including at least one compound selected from the group consisting of a tetracarboxylic dianhydride and a derivative thereof; and an imidized product of said polyimide precursor. (The definition of each symbol is as described in the specification.).