POLARIZING ELEMENT AND ELECTRO-OPTICAL LIQUID CRYSTAL DEVICE USING IT

PURPOSE:To obtain a polarizing element having high reliability and maintaining its polarizing power even in environment at high humidity and an electro-optical liq. crystal device using the polarizing element by holding a polarizing layer of polyvinyl alcohol contg. iodine between two protective fil...

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Bibliographische Detailangaben
Hauptverfasser:	TANNO SEIKICHI, HONJIYOU HIROSHI, SASAKI MASARU, SUZUKI HIROSHI, NAKANO FUMIO
Format:	Patent
Sprache:	eng
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:	PURPOSE:To obtain a polarizing element having high reliability and maintaining its polarizing power even in environment at high humidity and an electro-optical liq. crystal device using the polarizing element by holding a polarizing layer of polyvinyl alcohol contg. iodine between two protective films and by tightly sealing the peripheral parts with a material having low moisture permeability. CONSTITUTION:A polarizing layer 2 of polyvinyl alcohol contg. iodine is held between two protective films 1, 1' each having >=100mum thickness. The films 1, 1' are made of a polymer having