公开(公告)号：US08520171B2

公开(公告)日：2013-08-27

申请号：US13709932

申请日：2012-12-10

Applicant: Nitto Denko Corporation

Inventor： Takeharu Kitagawa ,  Shusaku Goto ,  Minoru Miyatake ,  Tomohiro Mori ,  Takashi Kamijo ,  Kentaro Yoshida ,  Satoru Kunikata

IPC: G02F1/1335 ,  G02B5/30

CPC classification number: G02B5/30 ,  B29C55/026 ,  B29C65/00 ,  B29D11/00 ,  B29K2029/04 ,  B29K2067/00 ,  B29K2995/0034 ,  G02B1/105 ,  G02B1/14 ,  G02B5/3033 ,  G02B5/3083 ,  G02F1/133528 ,  G02F2001/133638 ,  G02F2201/50 ,  G02F2202/22 ,  G02F2202/28 ,  H01L2924/30107 ,  Y10T428/1041 ,  Y10T428/2495 ,  Y10T428/265 ,  H01L2924/00

Abstract: Provided is an optical display device using a polarizing film which has a thickness of 10 μm or less and exhibits high optical characteristics. The optical display device comprises a continuous web of polarizing film which is made of a polyvinyl alcohol type resin having a molecularly oriented dichroic material, and formed through stretching to have a thickness of 10 μm or less and satisfy conditions expressed by the following formulas: P>−(100.929T-42.4−1)×100 (where T