PRESSURE-SENSITIVE ADHESIVE OPTICAL FILM, PRESSURE- SENSITIVE ADHESIVE COMPOSITION FOR OPTICAL FILM AND IMAGE DISPLAY DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a pressure-sensitive adhesive optical film having a pressure- sensitive adhesive layer applied on one surface of an optical film and to provide a pressure-sensitive adhesive optical film which can decrease production of small air bubbles when the film is laminated to a liquid crystal panel or the like. SOLUTION: The pressure-sensitive adhesive optical film has a pressure- sensitive adhesive layer applied on one surface of an optical film. When the optical film is fixed to a substrate through the pressure-sensitive adhesive layer in a 10 mm×10 mm adhesion area and loaded with 500 g weight, the delay spectrum L (τ) obtained by specified formula from a measured valueε(t) of distortion (μm) after t sec satisfies A/B≥1.5, wherein A is the delay spectrum at 10 sec and B is the delay spectrum at 1.0×103sec. COPYRIGHT: (C)2003,JPO