Hauptman Ham, LLP
Roll of continuous web of optical film laminate and production method therefor
A method of producing a roll of a continuous web of an optical film laminate, usable in a process of laminating an optical film sheet including a polarizing film and formed to a size corresponding to that an optical panel to a surface of the optical panel being fed to a lamination position, is disclosed. The polarizing film is prepared by subjecting a laminate including a thermoplastic resin substrate and a PVA type resin layer formed on the substrate, to uniaxial 2-stage stretching to reduce a thickness of the PVA type resin layer to 10 μm or less, and causing a dichroic material to be absorbed in the PVA type resin layer. A carrier film is releasably attached to the continuous web of optical film laminate including the polarizing film, through an adhesive layer. A defect inspection is performed for the optical film laminate and the adhesive layer.
NITTO DENKO CORPORATION
G G C G Y Y G
G02B G02B C09K G02B Y10T Y10T G02B
inventional inventional additional inventional additional additional inventional
Shusaku Tomohiro Takashi Takeharu Takuya Minoru
Goto Mori Kamijo Kitagawa Nakazono Miyatake