Optical stacks and image display devices

Abstract

This invention provides an optical laminate that suppresses the generation and elongation of cracks when exposed to temperature changes. The optical laminate of an embodiment of this invention sequentially comprises a polarizing film, a first adhesive sheet, and a retardation film. The storage modulus G1'(25°C) of the first adhesive sheet at 25°C, relative to its thickness T1, is G1'(25°C) / T1, which is 20.0 kPa / µm or more. The storage modulus G1'(85°C) of the first adhesive sheet at 85°C, relative to its thickness T1, is G1'(85°C) / T1, which is 15.0 kPa / µm or less.

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