| 摘要 |
A method for producing an optical film containing a laminate composed of a substrate and a birefringent layer, which comprises applying a material for forming the birefringent layer to form an applied film, extending or shrinking the substrate to thereby extend or shrink the applied film together with the substrate, and solidifying the material for forming the applied layer to thereby form the birefringent layer on the substrate, wherein the above material for forming the birefringent layer is applied as a solution having the material dispersed or dissolved therein, and a solvent capable of dissolving the above substrate is used as the solvent for the above solution. The use of a solvent capable of dissolving a substrate allows the penetration of the solvent into a part of the inside of the substrate, which results in the production of an optical film exhibiting excellent adhesion of a birefringent layer to a substrate. |
