OPTICAL LAMINATED FILM, POLARIZING PLATE, CIRCULARLY POLARIZING PLATE, AND IMAGE DISPLAY DEVICE

OPTICAL LAMINATED FILM, POLARIZING PLATE, CIRCULARLY POLARIZING PLATE, AND IMAGE DISPLAY DEVICE

PROBLEM TO BE SOLVED: To provide an optical laminated film that is less susceptible to curling even when a hard coat layer is formed thereon.SOLUTION: An optical laminated film of the present invention comprises a retardation film containing a cellulose derivative, and a hard coat layer provided on...

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Bibliographische Detailangaben
1. Verfasser: KOGURE MIDORI
Format: Patent
Sprache:eng ; 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
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:PROBLEM TO BE SOLVED: To provide an optical laminated film that is less susceptible to curling even when a hard coat layer is formed thereon.SOLUTION: An optical laminated film of the present invention comprises a retardation film containing a cellulose derivative, and a hard coat layer provided on one surface of the retardation film. A glucose skeleton of the cellulose derivative has at least a substituent group having a multiple bond, and an alkoxy group, where the substituent group with the multiple bond exhibits a maximum absorption wavelength in a range of 220 to 400 nm, inclusive, and in-plane retardation R(550) in a range of 90 nm to 200 nm, inclusive.SELECTED DRAWING: Figure 1 【課題】ハードコート層を設けてもカールしにくい光学用積層フィルムを提供する。【解決手段】本発明の光学用積層フィルムは、セルロース誘導体を含む位相差フィルムと、前記位相差フィルムの一方の面に設けられたハードコート層とを有するものであって、前記セルロース誘導体のグルコース骨格は、多重結合を有する置換基と、アルコキシ基とを少なくとも有し、前記多重結合を有する置換基の極大吸収波長は２２０ｎｍ以上４００ｎｍ以下であり、面内位相差値Ｒ０（５５０）は９０ｎｍ以上２００ｎｍ以下である。【選択図】図１