Laminate roll and its manufacturing method and apparatus of an optical film

A improve the accuracy and speed in the manufacture of liquid crystal display devices, to provide a laminate roll of the optical film to fundamentally solve the retention. The present invention is a laminate roll of the optical film used in the continuous production apparatus for a liquid crystal display element, optical film, and a protective film laminated on one surface of the continuous layer and the continuous layer of the polarizer includes a polarizing film comprising a laminate and an adhesive layer provided on one surface of the laminate consisting of the carrier film that is releasably laminated on the adhesive layer of the polarizing film, disadvantages in the polarizing film, which has been detected defective and normal regions, based on the position of predetermined, the continuous web of optical film, based on the defective and normal regions of the polarizing film, to be formed line cuts the continuous web by a cutting device for the continuous production device location encoding information including the cutting position information that specifies is recorded, encoded information is configured to be read by the reading device of the continuous manufacturing apparatus, a laminate roll. .The 12