Patent ID: 8211253

Claim:
A method of manufacturing an optical display unit comprising cutting a long sheet product wherein a release film is laminated onto an optical film through a pressure-sensitive adhesive layer into a predetermined shape without cutting the release film, peeling off a pressure-sensitive adhesive attached optical film piece obtained by the cutting, which includes the pressure-sensitive adhesive layer and the optical film each having the predetermined shape, from the release film, and bonding the pressure-sensitive adhesive layer side of the optical film piece onto an optical display substrate, thereby manufacturing an optical display unit, wherein in a step of feeding the sheet product, a predicted feed distance at the time of feeding a position specifying data given to the sheet product from a first position at the upstream side of the feeding to a second position at the downstream side of the feeding from the first position is compared with the actually measured feed distance from the first position to the second position, the distance being obtained by detecting the position specifying data by use of a detecting means at each of the first and second positions and determining the distance based on the detection result by a feed distance measuring means that measures the feed distance of the sheet product, and the feed distance measuring means is corrected so that the actually measured feed distance is set within a predetermined range based on the predicted feed distance value.