Patent ID: 8317961

Claim:
A method for manufacturing an optical display device comprising a rectangular optical display unit and an optically-anisotropic optical film bonded to the optical display unit, comprising: a first bonding step comprising: providing a roll of a belt-shaped sheet material that comprises a first optical film and a first release film with a width corresponding to a short side of the optical display unit and has score lines that are previously formed by cutting layers of the belt-shaped sheet material other than the first release film so that the first optical film can be divided by the score lines into pieces each having a length corresponding to a long side of the optical display unit; and bonding a divided piece of the first optical film having a length corresponding to the long side of the optical display unit to one surface of the optical display unit; and a second bonding step comprising: providing a roll of a belt-shaped sheet material that comprises a second optical film and a second release film with a width corresponding to the long side of the optical display unit and has score lines that are previously formed by cutting layers of the belt-shaped sheet material other than the second release film so that the second optical film can be divided by the score lines into pieces each having a length corresponding to the short side of the optical display unit; and bonding a divided piece of the second optical film having a length corresponding to the short side of the optical display unit to another surface of the optical display unit, wherein the first optical film comprises a first polarizing plate whose longitudinal direction is parallel to its absorption axis, and the second optical film comprises a second polarizing plate whose longitudinal direction is parallel to its absorption axis.