POLYAMIC ACID AND A POLYIMIDE OBTAINED BY REACTING A DIANHYDRIDE AND A DIAMINE

A polyamic acid and a polyimide obtained by reacting a dianhydride and diamines. A substrate having a film of such polyimide or polyamic acid deposited thereon. A liquid crystal display containing a film of such polyimide as an alignment layer. A method for reducing the response times of a liquid cr...

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Hauptverfasser:	DANNER DAVID, NELLES GABRIELE, HUSSAIN ZAKIR, INOUE YUICHI, SHIMA SHUICHI, KILICKIRAN PINAR, MASUTANI AKIRA, SUWA SHUNICHI
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS 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 ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY FREQUENCY-CHANGING GENERAL PROCESSES OF COMPOUNDING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS METALLURGY NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICS PRINTED CIRCUITS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING-UP
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Beschreibung
Zusammenfassung:	A polyamic acid and a polyimide obtained by reacting a dianhydride and diamines. A substrate having a film of such polyimide or polyamic acid deposited thereon. A liquid crystal display containing a film of such polyimide as an alignment layer. A method for reducing the response times of a liquid crystal display and/or for improving the on-state- and off-state-transmission and/or the voltage holding ratio of a liquid crystal display, the method involving incorporating the polyimide as an alignment layer in the liquid crystal display. A method of producing a liquid crystal display involving depositing a film of the polyimide on a substrate.