Patent ID: 8078307

Claim:
A production system for producing a sheet-shaped product source including an optical film for producing a sheet-shaped product source having at least an optical film which is a member of an optical displaying apparatus, wherein said sheet-shaped product having a protective layer film as a surface layer, comprising: defect detecting means for detecting defects of a monolayer film and/or a laminate film constituting the sheet-shaped product before said protective layer film is formed as said surface layer of the sheet-shaped product; defect information preparing means for preparing defect information which is information related to the defects detected by said defect detecting means; yield calculating means for analyzing the defect information prepared in said defect information preparing means and calculating a yield of the sheet-shaped product provided in a roll form or in separate sheets obtained by slitting or cutting a sheet-shaped product source according to a determination condition which is a condition for determining whether the product is good or bad; setting means for setting a sheet-shaped product source in which said yield is above or equal to a predetermined value; cutting means for cutting said set sheet-shaped product source with a slit width; defect information forming means for forming defect information on the protective layer of said cut sheet-shaped product source; and the defect information is formed as two-dimensional code data or QR code data.