Resin films, retardation films, laminated retardation films, methods for manufacturing resin films and methods for manufacturing retardation films

TW202639706APending Publication Date: 2026-10-01NITTO DENKO CORP
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Patent Information

Application Number
TW115102166
Authority / Receiving Office
TW · TW
Patent Type
Applications
Current Assignee / Owner
Priority Date
2025-12-17
Filing Date
2026-01-20
Publication Date
2026-10-01

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Abstract

The present invention aims to provide a resin film and a method for manufacturing the same, a phase retardation film using the resin film and a method for manufacturing the same, and a laminated phase retardation film having the aforementioned phase retardation film. The resin film is suitable for manufacturing phase retardation films containing fumarate-based resins, which have large phase retardation values ​​but low depolarization. The resin film of the present invention comprises a fumarate-based resin, has a thickness of 20 µm or more, and has 3.0 or fewer pores per µm² cross-section.
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