公开(公告)号：US20180017714A1

公开(公告)日：2018-01-18

申请号：US15516439

申请日：2015-10-02

Applicant: NITTO DENKO CORPORATION

Inventor： Hirofumi NOMOTO ,  Nobuyuki HAITA ,  Takeharu KITAGAWA

IPC: B32B27/08 ,  G02B5/30 ,  B32B7/02 ,  B32B27/30

CPC classification number: G02B1/14 ,  B32B7/02 ,  B32B27/08 ,  B32B27/30 ,  B32B27/306 ,  B32B2307/412 ,  B32B2307/42 ,  B32B2307/584 ,  G02B5/3033 ,  G02F2201/50

Abstract: The optical film laminate comprises: a polarizing film which is formed of a polyvinyl alcohol-based resin containing a molecularly-oriented dichroic martial, and has a thickness of 10 μm or less; and a transparent protective film formed of a thermoplastic resin and disposed on one of opposite surfaces of the polarizing film through an adhesive layer. The transparent protective film has a thickness of 40 μm or less, and a dimensional change rate in a direction orthogonal to an absorption axis of the polarizing film is 0.2% or more, as measured using a test piece thereof having a size of 100 mm×100 mm, in a state after leaving the test piece in an environment at 85° C. for 48 hours.