OPTICAL LAMINATED BODY AND IMAGE DISPLAY DEVICE USING THE SAME

To provide an optical laminated body in which frame-like display defects are suppressed.SOLUTION: An optical laminated body according to an embodiment of the present invention includes a front plate, an adhesive layer, a polarizing plate, and a phase difference layer in this order. The polarizing pl...

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Bibliographische Detailangaben
Hauptverfasser:	TAKASE YUTA, UWADA KAZUTAKA, MURAKAMI RYOICHI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES ADVERTISING CHEMISTRY CRYPTOGRAPHY DISPLAY DISPLAYING DYES EDUCATION ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY LABELS OR NAME-PLATES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PAINTS PHYSICS POLISHES SEALS SIGNS USE OF MATERIALS AS ADHESIVES
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Beschreibung
Zusammenfassung:	To provide an optical laminated body in which frame-like display defects are suppressed.SOLUTION: An optical laminated body according to an embodiment of the present invention includes a front plate, an adhesive layer, a polarizing plate, and a phase difference layer in this order. The polarizing plate includes a polarizer and a protective layer disposed on an adhesive layer side of the polarizer. The adhesive layer is composed of a photocurable adhesive containing a compound having a maximum absorption wavelength at 200nm to 300nm. A single transmittance of the polarizer is 43.3% or more. Alternatively, moisture permeability of the protective layer is 100 g/cm2 24hr or less.SELECTED DRAWING: Figure 1 【課題】枠状表示欠陥が抑制された光学積層体を提供すること。【解決手段】本発明の実施形態による光学積層体は、前面板と、粘着剤層と、偏光板と、位相差層と、をこの順に有する。偏光板は、偏光子と偏光子の粘着剤層側に配置された保護層とを含む。粘着剤層は、吸収極大波長が２００ｎｍ～３００ｎｍである化合物を含む光硬化性粘着剤で構成されている。偏光子の単体透過率は４３．３％以上である。あるいは、保護層の透湿度は１００ｇ／ｃｍ２・２４ｈｒ以下である。【選択図】図１