Title:
OPTICAL DIFFUSION FILM AND METHOD FOR MANUFACTURING OPTICAL DIFFUSION FILM
Document Type and Number:
WIPO Patent Application WO/2016/051560
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a single-layered optical diffusion film and a method for manufacturing the optical diffusion film capable of effectively enlarging the incident-angle region for optical diffusion and effectively minimizing changes in optical diffusion properties even when the incident angle of incident light changes within the range of the incident-angle region for optical diffusion. An optical diffusion film or the like includes a single-layered optical diffusion layer inside the film, the optical diffusion layer having a first internal structure and a second internal structure provided sequentially from the lower side of the film along the thickness direction thereof, the first and second internal structures respectively including a plurality of relatively high refractive index regions in a relatively low refractive index region. The relatively high refractive index regions in the first internal structure have a bent portion at an intermediate point along the film thickness direction.
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Inventors:
KUSAMA KENTARO (JP)
KATAGIRI BAKU (JP)
TOMIOKA KENTA (JP)
ORUI TOMOO (JP)
SHOSHI SATORU (JP)
KATAGIRI BAKU (JP)
TOMIOKA KENTA (JP)
ORUI TOMOO (JP)
SHOSHI SATORU (JP)
Application Number:
PCT/JP2014/076321
Publication Date:
April 07, 2016
Filing Date:
October 01, 2014
Export Citation:
Assignee:
LINTEC CORP (JP)
International Classes:
G02B5/02; G02F1/1335
Domestic Patent References:
WO2013108540A1 | 2013-07-25 | |||
WO2014084361A1 | 2014-06-05 |
Foreign References:
JP2014002188A | 2014-01-09 | |||
JP2012141593A | 2012-07-26 | |||
US6424395B1 | 2002-07-23 |
Attorney, Agent or Firm:
EMORI Kenji et al. (JP)
Kenji Emori (JP)
Kenji Emori (JP)
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