Title:
OPTICAL FILM, SURFACE LIGHT-EMITTING BODY, AND METHOD FOR MANUFACTURING OPTICAL FILM
Document Type and Number:
Japanese Patent JP2016045386
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an optical film which enhances light extraction efficiency and front luminance of a surface light-emitting body, and suppresses emission angle dependence of an emission light wavelength of the surface light-emitting body.SOLUTION: There is provided an optical film in which a plurality of microlenses having convex shapes are arranged, the microlens has a region α and a region β, and the region β occupies an outer portion of the convex shape of the microlens and is positioned so as to cover the region α. The region α includes a matrix resin Mand light-diffusion fine particles P. The resin β includes a matrix resin M, and has a refractive index higher than that of the matrix resin M.SELECTED DRAWING: Figure 4
Inventors:
KOSHITOUGE HARUKI
Application Number:
JP2014170086A
Publication Date:
April 04, 2016
Filing Date:
August 25, 2014
Export Citation:
Assignee:
MITSUBISHI RAYON CO
International Classes:
G02B5/02; B29C43/28; B29C59/02; F21S2/00; F21V5/00; F21V5/04; G02B3/00; H05B33/02
Foreign References:
| WO2013080794A1 | 2013-06-06 |
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