CORRECTED OPTICAL FILM, CORRECTED OPTICAL FILM HAVING AUXILIARY SHEET, AND CORRECTION METHOD AND CORRECTION DEVICE FOR OPTICAL FILM

摘要

PROBLEM TO BE SOLVED: To correct a size of a micro region into an allowable range when the size of the micro region exceeds an allowable range, so as to enable a usage as an optical film, in an optical film with a plurality of micro regions having different properties regularly arranged on a base material film.SOLUTION: When a size of a micro region exceeds an allowable range in an optical film, the optical film is corrected through being expanded or contracted so that the size of the micro region can be within the allowable range, and a corrected optical film is obtained. An auxiliary film having low hygroscopicity is further adhered to the corrected optical film to obtain a corrected optical film having an auxiliary film.