Title:
OPTICAL FILM
Document Type and Number:
WIPO Patent Application WO/2019/004042
Kind Code:
A1
Abstract:
In order to provide an optical film having a good deterioration suppression function for suppressing deterioration of a phase-difference film or an organic EL light-emitting element due to short-wavelength visible light, this optical film is formed from a resin composition containing a resin (A) and a selective light absorption compound (B), characterized in that the resin (A) is at least one type of resin selected from the group consisting of cellulose resin, a (meth)acrylic resin, a polyester resin, a polyamide resin, a polyimide resin and a cycloolefin resin, and satisfies the formula (1) below.
(1) A(405) ≥ 0.5
[In formula (1), A(405) represents absorbance at the wavelength 405 nm.]
Inventors:
KOBASHI AI (JP)
SAKAUE CHIE (JP)
ASATSU YUJI (JP)
SAKAUE CHIE (JP)
ASATSU YUJI (JP)
Application Number:
PCT/JP2018/023583
Publication Date:
January 03, 2019
Filing Date:
June 21, 2018
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO (JP)
International Classes:
G02B5/30; G02B5/22; G02F1/13363; G09F9/00; H01L27/32; H01L51/50; H05B33/02
Foreign References:
| JP2004102223A | 2004-04-02 | |||
| JPH08287715A | 1996-11-01 | |||
| JP2014115524A | 2014-06-26 | |||
| JP2017187619A | 2017-10-12 | |||
| JP2017165941A | 2017-09-21 |
Attorney, Agent or Firm:
NAKAYAMA, Tohru et al. (JP)
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