abstract |
The present invention relates to a base film; And a primer layer containing a polyester resin and water-dispersible fine particles on at least one surface of the base film and having a refractive index difference of 0.03 or less with respect to the base film, wherein the polyester resin has an aromatic carboxylic acid compound and an aliphatic carboxylic acid compound The present invention relates to an optical film comprising polyester glycol formed by the reaction of a polybasic acid and a polybasic acid in a molar ratio of 1: 9 to 9: 1. The optical film is excellent in adhesion between the optical film and the functional coating layer, , The rainbow phenomenon is small and the optical properties are excellent. |