Title:
WAVELENGTH CONVERSION SHEET-USE FILM, WAVELENGTH CONVERSION SHEET, BACKLIGHT, AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/058626
Kind Code:
A1
Abstract:
Provided are: a wavelength conversion sheet-use film that demonstrates greater adhesion to a phosphor layer when used in a wavelength conversion sheet; a wavelength conversion sheet that includes said film; and a backlight and a display device having said wavelength conversion sheet. A wavelength conversion sheet-use film (10) has a substrate (20) with a primer layer (30) disposed thereon. The primer layer (30) contains a cured substance of a resin composition that includes a polyurethane resin. The softening point of the cured substance is 250°C or higher.
Inventors:
SAKAMOTO TAKESHI (JP)
TAMURA SHUICHI (JP)
HARUKI AKIHITO (JP)
YAMANISHI SHOTA (JP)
FUJIOKA YUKO (JP)
MORIMOTO TARO (JP)
ONO YOSHIYUKI (JP)
HARADA RYUTARO (JP)
TAMURA SHUICHI (JP)
HARUKI AKIHITO (JP)
YAMANISHI SHOTA (JP)
FUJIOKA YUKO (JP)
MORIMOTO TARO (JP)
ONO YOSHIYUKI (JP)
HARADA RYUTARO (JP)
Application Number:
PCT/JP2022/037050
Publication Date:
April 13, 2023
Filing Date:
October 04, 2022
Export Citation:
Assignee:
DAINIPPON PRINTING CO LTD (JP)
International Classes:
G02B5/20; F21S2/00; F21V9/32; G02B5/02; G02F1/13357; F21Y115/10
Domestic Patent References:
| WO2021200426A1 | 2021-10-07 | |||
| WO2011122036A1 | 2011-10-06 |
Foreign References:
| JP2019044136A | 2019-03-22 | |||
| JP2019066759A | 2019-04-25 | |||
| JP2020049836A | 2020-04-02 |
Attorney, Agent or Firm:
OHTANI PATENT OFFICE (JP)
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