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Title:
PHOSPHOR-CONTAINING FILM AND BACKLIGHT UNIT
Document Type and Number:
WIPO Patent Application WO/2018/043543
Kind Code:
A1
Abstract:
Provided are: a phosphor-containing film which contains a phosphor such as quantum dots, and which is able to be suppressed in deterioration of the phosphor even in cases where the film is formed into a laminate and then cut into a desired size; and a backlight unit which is provided with this phosphor-containing film as a wavelength conversion member. This phosphor-containing film comprises: a phosphor-containing layer wherein a plurality of fluorescent regions, each of which contains a phosphor that is deteriorated through a reaction with oxygen when exposed to oxygen, are discretely arranged and a resin layer is arranged among the discretely arranged fluorescent regions, said resin layer having impermeability with respect to oxygen; and a first substrate film and a second substrate film, which are respectively laminated on the two main surfaces of the phosphor-containing layer. The resin layer has a Knoop hardness of from 115 N/mm2 to 285 N/mm2, a creep recovery rate of 22% or less, and an elasticity recovery rate of 60% or more.

Inventors:
SEKIGUCHI Megumi (210 Nakanuma, Minami-ashigara-sh, Kanagawa 93, 〒2500193, JP)
OBA Tatsuya (210 Nakanuma, Minami-ashigara-sh, Kanagawa 93, 〒2500193, JP)
KAKISHITA Kenichi (210 Nakanuma, Minami-ashigara-sh, Kanagawa 93, 〒2500193, JP)
KUSUMOTO Masayuki (210 Nakanuma, Minami-ashigara-sh, Kanagawa 93, 〒2500193, JP)
CHIKUSHI Natsuru (210 Nakanuma, Minami-ashigara-sh, Kanagawa 93, 〒2500193, JP)
Application Number:
JP2017/031111
Publication Date:
March 08, 2018
Filing Date:
August 30, 2017
Export Citation:
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Assignee:
FUJIFILM CORPORATION (26-30, Nishiazabu 2-chome Minato-k, Tokyo 20, 〒1068620, JP)
International Classes:
G02B5/20; F21S2/00; G02F1/13357; H01L33/50; C09K11/56; C09K11/70; F21Y115/10; F21Y115/30
Domestic Patent References:
WO2016125479A12016-08-11
WO2015095296A12015-06-25
WO2015024008A12015-02-19
Foreign References:
JP2016511709A2016-04-21
JP2015061759A2015-04-02
JP2016194552A2016-11-17
JP2016194558A2016-11-17
JP2016194561A2016-11-17
Attorney, Agent or Firm:
WATANABE Mochitoshi et al. (Yusen Iwamoto-cho Bldg. 6F, 3-3 Iwamoto-cho 2-chome, Chiyoda-k, Tokyo 32, 〒1010032, JP)
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