LAMINATED POLYESTER FILM FOR OPTICAL USE

摘要

PROBLEM TO BE SOLVED: To easily provide a laminated polyester film which has excellent adhesiveness to a conductive layer, excels in reducing interferential irregularity by reflection of external light, and has excellent adhesiveness to various kinds of surface functional layers such as a hard coat layer.SOLUTION: The polyester film comprises at least two kinds of layers, in which at least one surface layer shows an in-plane average refractive index ranging from 1.590 to 1.630. The film has a coating layer on the surface layer, the coating layer having easy adhesiveness to a functional resin.