Title:
バリアフィルム、波長変換シート、バックライト、及び表示装置
Document Type and Number:
Japanese Patent JP7193009
Kind Code:
B2
Abstract:
Provided are a barrier film having superior close adhesion to a phosphor layer when used for a wavelength conversion sheet, a wavelength conversion sheet having the barrier film, and a backlight and a display device including the wavelength conversion sheet. A barrier film for a wavelength conversion sheet, comprising: a barrier layer; and a primer layer, wherein the primer layer comprises a cured product of a polyurethane-based resin composition, and when a surface of an opposite side of the primer layer from the barrier layer is subjected to X-ray photoelectron spectroscopy to obtain a C1s spectrum, P2/P1 is 0.55 or more, where P1 is an area of a peak assigned to a C-C bond in the C1s spectrum and P2 is an area of a peak assigned to a C-O bond in the C1s spectrum.
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Inventors:
Tatsushi Nakajima
Shuichi Tamura
Samurai Sakamoto
Ryutarou Harada
Shuichi Tamura
Samurai Sakamoto
Ryutarou Harada
Application Number:
JP2021555225A
Publication Date:
December 20, 2022
Filing Date:
March 24, 2021
Export Citation:
Assignee:
Dai Nippon Printing Co.,Ltd.
International Classes:
G02B5/20; F21S2/00; F21V9/38; G02F1/13357
Domestic Patent References:
| JP2019044136A | ||||
| JP2018013724A | ||||
| JP2008184522A |
Foreign References:
| WO2015037733A1 |
Attorney, Agent or Firm:
Patent Attorney Corporation Otani Patent Office