Title:
PHOSPHOR SUBSTRATE, LIGHT-EMITTING SUBSTRATE, AND LIGHTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/063043
Kind Code:
A1
Abstract:
A phosphor substrate (30) has at least one light-emitting element (20) mounted thereon. The phosphor substrate comprises an insulation layer (31); a circuit pattern layer (34) joined to the light-emitting element (20) disposed on one face of the insulation layer (31); a phosphor layer (36) including a phosphor whose emission peak wavelength is in the visible light region when light emission of the light-emitting element (20) is excitation light; and a support layer (35) that is disposed between the insulation layer (31) and the phosphor layer (36), does not contain a phosphor, and supports the phosphor layer (36). The support layer (35) is provided layered onto the circuit pattern layer (34) in the region where the circuit pattern layer (34) is provided. The position of a junction (25) of the light-emitting element (20) farthest to the insulation layer (31) side is within the span of the thickness direction of the phosphor layer (36).
Inventors:
KONISHI MASAHIRO (JP)
Application Number:
PCT/JP2023/033869
Publication Date:
March 28, 2024
Filing Date:
September 19, 2023
Export Citation:
Assignee:
DENKA COMPANY LTD (JP)
International Classes:
H01L33/50; H01L33/60
Domestic Patent References:
| WO2022045017A1 | 2022-03-03 |
Foreign References:
| JP2017168559A | 2017-09-21 |
Attorney, Agent or Firm:
HAYAMI Shinji (JP)
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