POLARIZER, POLARIZING PLATE, AND IMAGE DISPLAY DEVICE

The present invention addresses the problem of providing a polarizer maintaining an excellent degree of polarization and having high transmittance and excellent durability, and a polarizing plate and an image display device using the same. This polarizer has a polyvinyl alcohol-based resin and iodin...

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Bibliographische Detailangaben
Hauptverfasser:	TERAO Yuko, OHNO Takahiro, ARAI Michio, SATAKE Ryo
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON ELECTRICITY GENERAL PROCESSES OF COMPOUNDING METALLURGY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PHYSICS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING-UP
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Beschreibung
Zusammenfassung:	The present invention addresses the problem of providing a polarizer maintaining an excellent degree of polarization and having high transmittance and excellent durability, and a polarizing plate and an image display device using the same. This polarizer has a polyvinyl alcohol-based resin and iodine included in the polyvinyl alcohol-based resin, in which the thickness of the polarizer is 2 to 20 μm, the degree of orientation of the polyvinyl alcohol-based resin is 0.11 or more and 0.16 or less, the iodine content is more than 0.50 g/m2 and 1.0 g/m2 or less, and the product of the degree of orientation of the polyvinyl alcohol-based resin and the iodine content is 0.08 g/m2 or more and 0.11 g/m2 or less.