Continuous roll of optical film laminate with a slit line in the form of a continuous web, a manufacturing method thereof and a manufacturing apparatus

摘要

[PROBLEMS] To provide a roll of optical-film laminate which contribute to enhancing accuracy and increasing speed in the production of liquid-crystal display elements and attaining a drastic improvement in yield. [MEANS FOR SOLVING PROBLEMS] The present invention provides a roll of an optical film laminate adapted for use in an apparatus for continuously producing liquid-crystal display elements, wherein the optical film comprises a polarizing composite film comprised of a laminate consisted of a continuous web of polarizer and a protective film superposed on one side of the continuous polarizer, and a pressure-sensitive adhesive layer disposed on one side of the laminate; and a carrier film superposed on the pressure-sensitive adhesive layer of the polarizing film in a freely peelable state, wherein, in the polarizing film, defective and normal regions have been determined based on the positions of defects detected, wherein, according to the defective and normal regions of the polarizing film, coded information including slitting position information which specifies the position where a slit line is to be formed in the continuous optical-film web with a cutter of the continuous-production apparatus has been recorded on the continuous web. The coded information is constituted so that it can be read by a reader of the continuous-production apparatus.