| abstract |
The present invention relates to an optical film including: a base material film; and a primer layer containing a polyester resin and water-dispersible minute particulates on at least one surface of the base material film and having a refractive index difference of 0.03 or less from the base material film, in which the polyester resin includes polyester glycol formed by a reaction of polybasic acid including an aromatic carboxylic acid compound and an aliphatic carboxylic acid compound at a mole ratio of 1 : 9 to 9 : 1 and polyol, adhesion force between the optical film and a functional coating layer is excellent, and a rainbow phenomenon is reduced and an optical property is excellent due to a small refractive index difference. |