Polarizing film and polarizing plate

This invention provideds a polarizing film in which shrinkage force in the direction of the absorption axis has excellent uniformity in the direction of the transmission axis, while the polarizing film has excellent optical properties. In the polarizing film, a dichroic dye is adsorbed and oriented...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	TAKEUCHI, TOMOYASU, NIWA, TAIKI, SUMIDA, KOJI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS 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:	This invention provideds a polarizing film in which shrinkage force in the direction of the absorption axis has excellent uniformity in the direction of the transmission axis, while the polarizing film has excellent optical properties. In the polarizing film, a dichroic dye is adsorbed and oriented in a polyvinyl alcohol resin film. In the polarizing film, the visibility correction single transmittance Ty is 43.20% or more, and the visibility correction polarization degree Py is 99.9970% or more. The difference between the maximum thickness and the minimum thickness in the direction of the transmission axis of the polarizing film is 2.1 [mu]m or less.