RESIN FILM, METHOD FOR MANUFACTURING RESIN FILM, AND METHOD FOR MANUFACTURING RETARDATION FILM

To provide a resin film that has an excellent appearance, and is suitably used for manufacturing of a retardation film having reverse wavelength dispersion characteristics and a method for manufacturing the same, and a method for manufacturing a retardation film using the resin film.SOLUTION: A resi...

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Hauptverfasser:	NAKANISHI SADAHIRO, AZUMA SHINTARO, YAGINUMA HIRONORI, NAGAHARA IPPEI, ITO MASAYASU, KOMINE TAKUYA, FUJII YASUYOSHI, KITAGAWA TAKAHIRO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING METALLURGY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PHYSICS THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	To provide a resin film that has an excellent appearance, and is suitably used for manufacturing of a retardation film having reverse wavelength dispersion characteristics and a method for manufacturing the same, and a method for manufacturing a retardation film using the resin film.SOLUTION: A resin film according to an embodiment of the present invention contains a resin indicating positive birefringence and a resin indicating negative birefringence, and a difference in refractive index between one surface and the other surface satisfies a following formula (I). (I) the refractive index difference≤\|thickness of resin film×0.00001\|.SELECTED DRAWING: None 【課題】優れた外観を有し、逆波長分散特性を有する位相差フィルムの製造に好適に用いられ得る樹脂フィルムおよびその製造方法と、該樹脂フィルムを用いた位相差フィルムの製造方法とを提供すること。【解決手段】本発明の実施形態による樹脂フィルムは、正の複屈折を示す樹脂と、負の複屈折を示す樹脂とを含有しており、一方面と他方面との屈折率差が下記式（Ｉ）を満足している。該屈折率差≦｜樹脂フィルムの厚み×０．００００１｜・・・（Ｉ）【選択図】なし