Invention Grant
- Patent Title: Optical film, shaping film, method for manufacturing optical film, and method for manufacturing stretched film
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Application No.: US15510753Application Date: 2015-09-10
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Publication No.: US10663635B2Publication Date: 2020-05-26
- Inventor: Hyota Nakahori , Shunsuke Yamanaka
- Applicant: Zeon Corporation
- Applicant Address: JP Chiyoda-ku, Tokyo
- Assignee: ZEON CORPORATION
- Current Assignee: ZEON CORPORATION
- Current Assignee Address: JP Chiyoda-ku, Tokyo
- Agency: Kenja IP Law PC
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@4291ab08
- International Application: PCT/JP2015/075715 WO 20150910
- International Announcement: WO2016/043117 WO 20160324
- Main IPC: F21V9/06
- IPC: F21V9/06 ; G02B5/20 ; B29C48/08 ; B29C48/00 ; B29C48/21 ; B32B27/00 ; B29C48/18 ; B29C48/19 ; B29D11/00 ; B32B27/08 ; G02B5/30 ; B29L11/00 ; B29L7/00 ; B29L9/00 ; B29C48/315 ; B29C48/30 ; B29C48/31 ; B29C48/49 ; B29K101/12
Abstract:
The present invention provides an optical film containing an additive. The optical film includes a high concentration portion containing the additive, and a low concentration portion containing the additive at a concentration lower than the high concentration portion. The low concentration portion is provided on both sides of the high concentration portion in a thickness direction of the optical film, and the low concentration portion is provided on both sides of the high concentration portion in a width direction of the optical film.
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