Title:
OPTICAL FILM
Document Type and Number:
WIPO Patent Application WO/2019/004045
Kind Code:
A1
Abstract:
In order to provide an optical film which, by exhibiting a high absorption selectivity for UV light and for short-wavelength visible light near the wavelength 405nm, has a good deterioration suppression function for suppressing deterioration of a phase-difference film or an organic EL light-emitting element due to UV light and short-wave visible light, this optical film includes a selective light absorption layer A satisfying formula (1) below and a selective light absorption layer B satisfying formula (2) below. (1) A(350) ≥ 0.5 (2) A(405) ≥ 0.5 [In formula (1), A(350) represents absorbance at the wavelength 350 nm. In formula (2), A(405) represents absorbance at the wavelength 405 nm.]
Inventors:
KOBASHI AI (JP)
SAKAUE CHIE (JP)
OZAWA SHOICHI (JP)
SAKAUE CHIE (JP)
OZAWA SHOICHI (JP)
Application Number:
PCT/JP2018/023586
Publication Date:
January 03, 2019
Filing Date:
June 21, 2018
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO (JP)
International Classes:
G02B5/22; B32B7/02; B32B27/00; G02B5/30; G02F1/13363; G09F9/00; H01L27/32; H01L51/50; H05B33/02
Domestic Patent References:
| WO2017099016A1 | 2017-06-15 |
Foreign References:
| JP2013075978A | 2013-04-25 | |||
| JP2017187619A | 2017-10-12 |
Attorney, Agent or Firm:
NAKAYAMA, Tohru et al. (JP)
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