OPTICAL LAYERED BODY, POLARIZER, AND IMAGE DISPLAY DEVICE

The present invention provides an optical layered body that can reduce the occurrence of curling and has excellent workability when being affixed to a polarizing element or a display panel. The present invention provides an optical layered body having a hard coat layer on one side of a triacetylcell...

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Bibliographische Detailangaben
Hauptverfasser:	INOMATA YUYA, HORIO TOMOYUKI, NISHIZONO TAKESHI
Format:	Patent
Sprache:	eng
Schlagworte:	LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PERFORMING OPERATIONS PHYSICS TRANSPORTING
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Beschreibung
Zusammenfassung:	The present invention provides an optical layered body that can reduce the occurrence of curling and has excellent workability when being affixed to a polarizing element or a display panel. The present invention provides an optical layered body having a hard coat layer on one side of a triacetylcellulose substrate, wherein a Martens hardness (N1) of the surface of the hard coat layer, a Martens hardness (N2) of the center of the cross-section of the hard coat layer, and a Martens hardness (N3) of the center of the cross-section of the triacetylcellulose substrate as measured by nanoindentation at a load of 10 mN are as follows: the Martens hardness (N1) is 200 to 450 N/mm2; the Martens hardness (N2) is 100 to 300 N/mm2; and the Martens hardness (N3) is 150 to 250 N/mm2.