Invention Grant
- Patent Title: Polarizing plate comprising an optical functional film and a protective film having a specified moisture permeability
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Application No.: US15512328Application Date: 2015-09-18
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Publication No.: US10274659B2Publication Date: 2019-04-30
- Inventor: Akinori Izaki , Ryohei Sawazaki , Atsushi Yasui , Yuki Kida , Takeharu Kitagawa , Takuya Mori
- Applicant: NITTO DENKO CORPORATION
- Applicant Address: JP Osaka
- Assignee: NITTO DENKO CORPORATION
- Current Assignee: NITTO DENKO CORPORATION
- Current Assignee Address: JP Osaka
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2014-191734 20140919; JP2015-182853 20150916
- International Application: PCT/JP2015/076629 WO 20150918
- International Announcement: WO2016/043305 WO 20160324
- Main IPC: G02B5/30
- IPC: G02B5/30

Abstract:
A polarizing plate including an optical functional film and a polarizing film (polarizer), the polarizing plate being thin and excellent in durability of the polarizing film. The polarizing plate includes an optical functional film, a pressure-sensitive adhesive layer, a polarizing film, and a protective film in the stated order, in which: the polarizing film has a thickness of 15 μm or less; the pressure-sensitive adhesive layer has a thickness of 15 μm or less; the optical functional film has a moisture permeability of 200 g/m2/24 h or less; and the protective film has a moisture permeability of 1,000 g/m2/24 h or less.
Public/Granted literature
- US20170276851A1 POLARIZING PLATE Public/Granted day:2017-09-28
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