Thermoplastic resin composition containing polycarbonate resin, graft copolymer, and copolymer, and molded article thereof

A thermoplastic resin composition, comprising:

• 30 to 60 parts by weight of a polycarbonate resin (A),
• 20 to 60 parts by weight of a graft copolymer (B), and
• 10 to 20 parts by weight of a copolymer (C) wherein the total is 100 parts by weight,
• the graft copolymer (B) being a graft copolymer obtained by graft polymerizing 20 to 90 parts by weight of at least one monomer including at least an aromatic vinyl monomer and/or a vinyl cyanide monomer to 10 to 80 parts by weight of alkyl(meth)acrylate rubber having a weight average particle size of 150 to 450 nm and having a particle size for a cumulative weight fraction of 10 wt % of 50 to 150 nm and a particle size for a cumulative weight fraction of 90 wt % of 450 to 650 nm (wherein a total of the alkyl(meth)acrylate rubber and the monomer(s) is 100 parts by weight);
• and
• the copolymer (C) being a copolymer obtained by polymerizing a monomer mixture including 60 to 95 wt % of an aromatic vinyl monomer, 5 to 40 wt % of a vinyl cyanide monomer, and 0 to 40 wt % of an additional monomer copolymerizable with said monomers, and a weight average molecular weight (Mw) of the copolymer (C) being in a range of 50000 to 200000.