PROBLEM TO BE SOLVED: To provide an optical adhesive layer that has good step followability to flame printing disposed on a cover glass and when laminating a cover glass with a sensor glass, has excellent step followability combined with durability and to provide an adhesive film using the optical adhesive layer.SOLUTION: The adhesive layer is produced by crosslinking an adhesive composition including an acrylic polymer and a crosslinking agent. The acrylic polymer is a copolymer produced by copolymerizing a monomer selected from an alkyl acrylate monomer, an alicyclic-containing monomer, a monomer containing an alkyl group having a branch structure and a nitrogen-containing vinyl monomer with a hydroxyl group-containing vinyl monomer. The adhesive layer has a gel fraction of 40-75 percent, has a storage elastic modulus at 1 Hz and 100 degrees centigrade of 100,000 Pa or less as measured when laminating the adhesive layer in a thickness of 1,000 micro...

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