| 摘要 |
PURPOSE: A shape controlling method and an apparatus of a polymer film, and a manufacturing method of an optical film using thereof are provided to produce a phase difference with the low retardation change before and after a moisture heat endurance test. CONSTITUTION: A shape controlling method of a polymer film comprises the following: a casing including a film conveying unit, returning the polymer film processed with the stretching treatment; a pre-treatment area(6a) formed on the film conveying unit; a main treatment area(6b) formed on the film conveying unit; a main treatment unit contacting the polymer film with moisture gas; and a pre treatment unit. |
