Production method of rolled optical film having coating layer, rolled optical film, polarizing plate and liquid crystal display

摘要

A method for producing a roll film provided with a coat layer comprising the steps of: (i) producing a roll film; (ii) applying a first embossing treatment along a longitudinal direction of the roll film on a part of a lateral direction of the roll film; (iii) applying a coat layer on the roll film; (iv) applying a second embossing treatment along a longitudinal direction of the roll film on a part of a lateral direction of the roll film; (v) heat treating the roll film at a temperature of 50 to 150° C. for a duration of 1 to 30 days while the roll film is rolled in a roll.