The present invention provides a double-sided pressure-sensitive
adhesive sheet including a pressure-sensitive
adhesive layer which has a thickness of 3 to 15 μm and contains a pressure-sensitive
adhesive composition containing the following
acrylic polymer (a) and acrylic
oligomer (b), wherein the acrylic
oligomer (b) is contained at a proportion of 10 to 35 parts by weight per 100 parts by weight of the
acrylic polymer (a),
acrylic polymer (a): an acrylic
polymer having a weight-average molecular weight of 500,000 to 900,000 and formed from
monomer components containing at least 50 to 99% by weight of
alkyl(
meth)
acrylate of which the
alkyl group has 4 to 12 carbon atoms, and 1 to 10% by weight of a carboxyl group-containing
monomer,acrylic
oligomer (b): an acrylic oligomer having a weight-average molecular weight of 3,000 to 6,000 and formed from
monomer components containing at least 50 to 99% by weight of (
meth)acrylic ester, which has a
glass transition temperature of 60 to 190° C. when it is formed into a homopolymer and has a cyclic structure, and 1 to 10% by weight of a carboxyl group-containing monomer; andwherein the pressure-sensitive adhesive layer has a thickness unevenness of the whole surface of 0.030 μm or less.