Optical layered body, polarizer, and image display device

Optical layered body, polarizer, and image display device

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 is provided. In particular is provided an optical layered body having a hard coat layer on one side of a triacetylcellulose substrate, wherein...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: INOMATA YUYA, HORIO TOMOYUKI, NISHIZONO TAKESHI
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
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
NON-LINEAR OPTICS
OPTICAL ANALOGUE/DIGITAL CONVERTERS
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICAL LOGIC ELEMENTS
OPTICS
PERFORMING OPERATIONS
PHYSICS
TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
TRANSPORTING
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Beschreibung
Zusammenfassung: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 is provided. In particular is provided 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 a 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.