Invention Grant
- Patent Title: Optical film, polarizing plate, and image display device
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Application No.: US15825737Application Date: 2017-11-29
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Publication No.: US10689575B2Publication Date: 2020-06-23
- Inventor: Takahiro Ohno , Makoto Ishiguro , Yoshiaki Hisakado , Hiroshi Sato , Keita Takahashi , Naozumi Shiraiwa , Taiji Katsumata , Hiroshi Matsuyama
- Applicant: FUJIFILM Corporation
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Corporation
- Current Assignee: FUJIFILM Corporation
- Current Assignee Address: JP Tokyo
- Agency: Edward Neils LLC
- Agent Jean C. Edwards, Esq.
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@4e619511 com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@7cb38909
- Main IPC: C09K19/38
- IPC: C09K19/38 ; G02F1/13363 ; C09K19/54 ; C09K19/34 ; G02B5/30 ; C08F236/20 ; C09K19/04 ; G02F1/1335
Abstract:
The present invention is to provide an optical film having optically anisotropic layer having excellent durability, and a polarizing plate and an image display device using the same. An optical film of the present invention is an optical film having at least an optically anisotropic layer, in which the optically anisotropic layer is a layer obtained by polymerizing a polymerizable liquid crystal composition containing a predetermined liquid crystal compound and a polymerization initiator, and an extrapolated glass transition starting temperature of the optically anisotropic layer is 70° C. or higher.
Public/Granted literature
- US20180079958A1 OPTICAL FILM, POLARIZING PLATE, AND IMAGE DISPLAY DEVICE Public/Granted day:2018-03-22
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