公开(公告)号：US10366876B2

公开(公告)日：2019-07-30

申请号：US16181816

申请日：2018-11-06

Applicant: FUJIFILM Corporation

Inventor： Keisuke Oku ,  Kenichi Kakishita ,  Tatsuya Oba

IPC: H01J61/46 ,  G02F1/1335 ,  H01J61/35 ,  H01J9/22 ,  C09K11/00 ,  G02B5/20 ,  C09K11/77 ,  F01D11/02 ,  F16J15/3288 ,  H01J61/44

Abstract: Provided are a phosphor-containing capable of suppressing deterioration of phosphors and can be manufactured with high efficiency and a backlight unit. Specifically, provided is a phosphor-containing film, including a first substrate film; and a phosphor-containing layer at which a plurality of regions containing phosphors, which, if exposed to oxygen, deteriorate by reacting with the oxygen, are discretely disposed on the first substrate film, and at which a resin layer having an impermeability to oxygen is disposed between the discretely disposed regions containing phosphors, in which a width S of the resin layer between the regions containing phosphors is 0.01≤S

公开(公告)号：US09651826B2

公开(公告)日：2017-05-16

申请号：US14714733

申请日：2015-05-18

Applicant: FUJIFILM Corporation

Inventor： Tatsuya Oba ,  Makoto Kamo

IPC: C09K19/00 ,  G02F1/1335 ,  F21V9/16 ,  H05B33/20 ,  C09K19/14 ,  C09K19/12

CPC classification number: G02F1/133617 ,  C09K19/14 ,  C09K2019/122 ,  C09K2019/123 ,  F21V9/30 ,  G02F2001/133614 ,  H05B33/20 ,  Y10T428/10

Abstract: An aspect of the present invention relates to a wavelength conversion member, which comprises a wavelength conversion layer, wherein the wavelength conversion layer comprises at least one quantum dot which has a property of being excited with exciting light to emit fluorescence, and at least one oxygen permeability coefficient-reducing agent, an oxygen permeability coefficient per 1 mm thickness of the wavelength conversion layer is less than 150.0 cm3/m2/day/atm, and the oxygen permeability coefficient-reducing agent is a compound which exhibits an oxygen permeability coefficient-reducing capability of reducing the oxygen permeability coefficient per 1 mm thickness of the wavelength conversion layer by equal to or more than 30% per 10 parts by weight of the oxygen permeability coefficient-reducing agent relative to 100 parts by weight of the wavelength conversion layer except for the oxygen permeability coefficient-reducing agent.