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

The invention provides a liquid crystal aligning agent, a liquid crystal aligning film obtained by the liquid crystal aligning agent and a liquid crystal display element using the liquid crystal aligning film, wherein the liquid crystal aligning film has high film strength, suppressed AC residual im...

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Bibliographische Detailangaben
Hauptverfasser:	KONISHI REIKU, YUKI TATSUYA
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	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 HETEROCYCLIC COMPOUNDS 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 CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	The invention provides a liquid crystal aligning agent, a liquid crystal aligning film obtained by the liquid crystal aligning agent and a liquid crystal display element using the liquid crystal aligning film, wherein the liquid crystal aligning film has high film strength, suppressed AC residual images and high voltage holding ratio even after being exposed at high temperature for a long time. The liquid crystal aligning agent contains the following component (A) and a compound (B) represented by the following formula (1). Component (A): a polymer component containing a polymer (A) selected from the group consisting of polyimide precursors obtained by polymerizing a tetracarboxylic acid derivative component and a diamine component, and polyimides that are imides of the polyimide precursors. The tetracarboxylic acid derivative component contains at least one compound selected from the group consisting of tetracarboxylic acid dianhydrides and derivatives thereof. (The definition of each symbol is as defined in