Invention Grant
- Patent Title: Optical film, method for producing the same, polarizing plate and image display device
- Patent Title (中): 光学膜,其制造方法,偏光板和图像显示装置
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Application No.: US12370645Application Date: 2009-02-13
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Publication No.: US08389049B2Publication Date: 2013-03-05
- Inventor: Miho Asahi , Kenichi Fukuda , Katsumi Inoue , Jun Watanabe
- Applicant: Miho Asahi , Kenichi Fukuda , Katsumi Inoue , Jun Watanabe
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Corporation
- Current Assignee: FUJIFILM Corporation
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP.
- Priority: JPP2008-032288 20080213; JPP2009-029706 20090212
- Main IPC: B05D5/06
- IPC: B05D5/06

Abstract:
An optical film, includes: a transparent support; and an optical functional layer as the outermost layer of the optical film, the optical functional layer being provided on or above the transparent support, wherein the optical functional layer has a thickness of 50 nm or more and not more than 250 nm; the optical functional layer contains low refractive index fine particles having a refractive index of not more than 1.45, high refractive index fine particles having a refractive index of 1.55 or more, and a fluorine-containing compound; the low refractive index fine particles are arranged substantially in a line on a surface of the optical functional layer on the opposite side of the transparent support; and the high refractive index fine particles are unevenly distributed in a lower part of the optical functional layer on the side of the transparent support.
Public/Granted literature
- US20090202819A1 OPTICAL FILM, METHOD FOR PRODUCING THE SAME, POLARIZING PLATE AND IMAGE DISPLAY DEVICE Public/Granted day:2009-08-13
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