| abstract |
The present invention provides an adhesive polyester film having excellent adhesive to optical functional layer at high temperature and high humidity. The present invention has coating layer on at least single surface of polyester film, and the coating layer comprises urethane resin of aliphatic-based polycarbonate polyalcohol as constitution compound and crossliking agent as main compound measured by a infrared spectrophotometer, wherein the absorbance ratio from aliphatic-based polycarbonate compound nearby 1460 cm-1/ from urethane compound neary 1530cm-1 is 0.40 to 1.55. |