| abstract |
An adhesive sheet (1) that comprises an adhesive layer (11) having a thickness of 10 to 400 μm formed by crosslinking an adhesive composition including a (meth)acrylic acid ester copolymer (A) which has a weight-average molecular weight of 200,000 to 900,000, and includes 15 to 30 mass% of a monomer having a hydroxyl group and does not include a monomer having a carboxyl group as a monomer unit that constitutes the polymer, a polyisocyanate compound (B), and a chelate compound (C). The adhesive sheet (1) has excellent step conformability as well as excellent resistance to blisters and resistance to moisture, heat and whitening, and can suppress corrosion of transparent conductive films and metal lines and changes in resistance values of the transparent conductive films. |