Polyester resin composition and molded article produced using the same

A polyester resin composition consisting essentially of

• about 25 wt % to about 40% of a crystalline polyester resin;
• about 7 wt % to about 40 wt % of a non-crystalline polyester resin;
• and about 10 wt % to about 50 wt % of glass fibers, each based on 100 wt % of the polyester resin composition, and optionally an additive selected from the group consisting of UV absorbers, inorganic additives, lubricants, plasticizers, heat stabilizers, antioxidants, photostabilizers, pigments, dyes, and mixtures thereof,
• wherein the weight ratio of the crystalline polyester resin to the non-crystalline polyester resin ranges from about 4:1 to 2:1,
• wherein the polyester resin composition has an impact resistance of about 50 cm or higher, as measured on a specimen having a size of 10 cm×10 cm×1.0 mm using a 500 g dart in accordance with the DuPont drop test after the specimen is subjected to aging at 25° C./80% RH for 24 hours.