POLARIZER AND POLARIZING PLATE

Provided is a thin polarizer having a highly favorable heat resistance. A polarizer according to the present invention is configured from a polyvinyl alcohol-based resin film containing iodine, wherein the content of a free boric acid is 0.4 wt% or less. L'invention concerne un polariseur mince...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SAWADA Hiroaki, SARUHASHI Yuto
Format:	Patent
Sprache:	eng ; fre ; jpn
Schlagworte:	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 NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	Provided is a thin polarizer having a highly favorable heat resistance. A polarizer according to the present invention is configured from a polyvinyl alcohol-based resin film containing iodine, wherein the content of a free boric acid is 0.4 wt% or less. L'invention concerne un polariseur mince ayant une résistance à la chaleur très favorable. Un polariseur selon la présente invention est configuré à partir d'un film de résine à base d'alcool polyvinylique contenant de l'iode, la teneur en acide borique libre étant inférieure ou égale à 0,4 % en poids. 薄型で、かつ、非常に優れた耐熱性を有する偏光子が提供される。本発明の偏光子は、ヨウ素を含有するポリビニルアルコール系樹脂フィルムで構成され、遊離ホウ酸含有量が０．４重量％以下である。