OPTICAL COMPENSATION FILM AND METHOD FOR PRODUCING SAME

Provided are: an optical compensation film having excellent retardation characteristics; and a method for producing this optical compensation film. An optical compensation film which is a stretched film using a resin composition that contains a resin having a residue unit represented by general form...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	TOYOMASU SHINSUKE, KITAGAWA TAKAHIRO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 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 GENERAL PROCESSES OF COMPOUNDING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES METALLURGY NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Beschreibung
Zusammenfassung:	Provided are: an optical compensation film having excellent retardation characteristics; and a method for producing this optical compensation film. An optical compensation film which is a stretched film using a resin composition that contains a resin having a residue unit represented by general formula (1) and a cellulose resin, and which is characterized in that: the in-plane retardation (Re) asdetermined by formula (1) is 50-300 nm; and the Nz coefficient as determined by formula (2) satisfies 0 < Nz < 1.0. (In general formula (1), each of R1, R2 and R3 independently represents a hydrogen atom, an alkyl group or a halogen group; and Ar represents an optionally substituted benzene.) Re = (nx - ny) * d (1) Nz = (nx - nz)/(nx - ny) (2) (In formulae (1) and (2), nx represents the refractiveindex in the in-plane stretching axis direction; ny represents the refractive index in the direction perpendicular to the in-plane stretching axis; nz represents the refractive index in the out-of-plane direction (thickness d