| 摘要 |
PURPOSE: An optical film is provided to obtain the superior optical characteristic by adjusting the refractive index with respect to one coating layer of the optical film in a pre-set range. CONSTITUTION: A first coating layer, a base film, and a second coating layer are successively stacked. The absolute value of a difference of the refractive index of the first coating layer and the refractive index of the second coating layer is between 0.06 and 0.15. The refractive index of the first coating layer is between 1.54 and 1.59. The refractive index of the second coating layer is between 1.39 and 1.53. The first coating layer is polyurethane coating layer. |
