Patent ID: 8427625

Claim:
A system for manufacturing a rectangular optical display device by cutting an optical film in a width direction to be a predetermined size, which is fed from a material roll formed by winding said optical film including a polarizer, and bonding the optical film to a rectangular liquid crystal cell of VA mode, comprising: a first feeder feeding a first optical film from a first material roll, which is formed by winding said first optical film having a width corresponding to a length of a short side of said liquid crystal cell, in a direction perpendicular to the width direction, the first optical film having an absorption axis which extends in a direction perpendicular to the width direction; a second feeder feeding a second optical film from a second material roll, which is formed by winding said second optical film having the same width as that of said first optical film and is arranged in such a manner that a width direction is arranged parallel to the width direction of said first material roll, in a direction perpendicular to the width direction, the second optical film including the polarizer having an absorption axis which extends in the width direction and a retardation layer bonded thereto having a slow axis which extends in a direction perpendicular to the width direction; a first cutting apparatus cutting the first optical film fed from said first feeder in an interval corresponding to a length of the long side of said liquid crystal cell; a second cutting apparatus cutting the second optical film fed from said second feeder in the same interval as that of said first optical film; a first bonding apparatus bonding a cut piece of said first optical film to one surface of said liquid crystal cell; and a second bonding apparatus bonding a cut piece of said second optical film to the other surface of said liquid crystal cell in such a manner that the retardation layer is arranged at the side of the rectangular liquid crystal cell, wherein said first optical film is bonded to a front surface of the liquid crystal cell in a way that the absorption axis of the first optical film extends in a horizontal direction, the front surface and the horizontal direction being defined under condition at a time of viewing the optical display device, and wherein said second optical film is bonded to a back surface of the liquid crystal cell in a way that the absorption axis of the polarizer extends in a vertical direction and the slow axis of the retardation layer extends in a horizontal direction, the back surface, the vertical direction and the horizontal direction being defined under condition at a time of viewing the optical display device.