Acrylic adhesive sheet, acrylic adhesive composition, adhesive film, and flexible device

Abstract

Provided are an acrylic pressure-sensitive adhesive sheet that can balance excellent adhesiveness and excellent elasticity even if the thickness of the pressure-sensitive adhesive layer is reduced, an acrylic pressure-sensitive adhesive composition for forming the acrylic pressure-sensitive adhesive sheet, an adhesive film having a pressure-sensitive adhesive layer composed of the acrylic pressure-sensitive adhesive sheet, and a flexible device provided with the adhesive film. The acrylic pressure-sensitive adhesive sheet of the embodiment of the present application has an adhesion to a polyimide film of 5.5 N / 25 mm or more at 23°C, a peeling speed of 300 mm / min, and a peeling angle of 180 degrees, an adhesion to glass of 5.5 N / 25 mm or more, an energy storage modulus G' of 200 kPa or less at -20°C, and a thickness of 25 μm or less.

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