Invention Grant
- Patent Title: Optical film, polarizing plate, and image display device
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Application No.: US16130327Application Date: 2018-09-13
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Publication No.: US11644604B2Publication Date: 2023-05-09
- Inventor: Ayako Matsumoto , Shuntaro Ibuki
- Applicant: FUJIFILM Corporation
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Corporation
- Current Assignee: FUJIFILM Corporation
- Current Assignee Address: JP Tokyo
- Agency: Edwards Neils LLC
- Agent Jean C. Edwards, Esq.
- Priority: JP 2016062131 2016.03.25
- Main IPC: G02B5/30
- IPC: G02B5/30 ; G02F1/1335 ; B32B27/18 ; B32B27/34 ; B32B7/023 ; G02B1/14 ; F21V8/00

Abstract:
Provided are an optical film including a base material, and a hard coat layer, in which a refractive index of the base material at a wavelength of 550 nm is 1.60 or more, a difference between a refractive index of the base material at a wavelength of 435 nm and a refractive index of the base material at a wavelength of 610 nm is 0.11 or more, and a peak intensity PV value of a power spectrum obtained by subjecting a reflectivity spectrum of the optical film to fast Fourier transform is 0.3 or less, a polarizing plate having the optical film and an image display device.
Public/Granted literature
- US20190011607A1 OPTICAL FILM, POLARIZING PLATE, AND IMAGE DISPLAY DEVICE Public/Granted day:2019-01-10
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