Invention Grant
- Patent Title: Phosphor protection film, wavelength conversion sheet, and light-emitting unit
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Application No.: US16839489Application Date: 2020-04-03
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Publication No.: US11642869B2Publication Date: 2023-05-09
- Inventor: Masato Kurokawa
- Applicant: TOPPAN PRINTING CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: TOPPAN PRINTING CO., LTD.
- Current Assignee: TOPPAN PRINTING CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Foley & Lardner LLP
- Priority: JP 2017195017 2017.10.05
- Main IPC: B32B7/12
- IPC: B32B7/12 ; B32B7/02 ; B32B9/00 ; F21S2/00 ; G02B5/20 ; H01L33/50
Abstract:
A phosphor protection film that includes two films that are bonded to each other via an adhesive layer. One of the two films is a film including an inorganic film layer. In the phosphor protection film, when the film including the inorganic film layer of the two films is a barrier film and the other film of the two films is a support film, the support film has a thickness occupying 72% or more of the total thickness of the phosphor protection film.
Public/Granted literature
- US20200230915A1 PHOSPHOR PROTECTION FILM, WAVELENGTH CONVERSION SHEET, AND LIGHT-EMITTING UNIT Public/Granted day:2020-07-23
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