Patent ID: 9575343
Date: 2017-02-21
CPC Classifications: B32B,G02B,G02F,Y10T

Claim:
1. A method for continuously manufacturing an optical display panel comprising an optical cell, and a first polarizing film and a linearly polarized light separating film which are placed in this order on a back side of the optical cell, the method comprising: a first bonding step comprising providing a first polarizing film obtained by transversely cutting a first long polarizing film having an absorption axis in its longitudinal direction, supplying the first polarizing film from a first optical film roll, and bonding the first polarizing film to a back side of the optical cell while feeding the optical cell, wherein bonding the first polarizing film is started from one of a pair of opposite sides of the optical cell and performed along a direction in which the first polarizing film is supplied; and a second bonding step comprising providing a linearly polarized light separating film obtained by transversely cutting a long linearly polarized light separating film having a reflection axis in its transverse direction, supplying the linearly polarized light separating film from a second optical film roll, and bonding the linearly polarized light separating film onto the first polarizing film bonded to the back side of the optical cell, while feeding the optical cell, wherein bonding the linearly polarized light separating film is started from one of another pair of opposite sides of the optical cell and performed along a direction in which the linearly polarized light separating film is supplied.