Title:
WAVELENGTH CONVERSION MEMBER AND WAVELENGTH CONVERSION MEMBER MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2024/009823
Kind Code:
A1
Abstract:
Provided are a wavelength conversion member with which it is possible to suppress a decrease in wavelength conversion efficiency, and a wavelength conversion member manufacturing method. The wavelength conversion member comprises a layered body which includes: a first barrier layer having a first main surface, a second main surface positioned opposite the first main surface, and an end surface connected to the first main surface; a wavelength conversion layer that has a third main surface and a fourth main surface positioned opposite the third main surface, and which is disposed on the first barrier layer with the third main surface and the second main surface of the first barrier layer facing each other, the wavelength conversion layer including quantum dots; and a second barrier layer that includes a fifth main surface and a sixth main surface positioned opposite the fifth main surface, and which is disposed on the wavelength conversion layer with the fifth main surface and the fourth main surface of the wavelength conversion layer facing each other. The wavelength conversion layer is positioned on the inside of the end surface in one cross section intersecting the third main surface and taken through the end surface, and has a first side surface connecting the third main surface and the fourth main surface. The first side surface is coated with a coating film.
Inventors:
WAKAKI TAKAYOSHI (JP)
Application Number:
PCT/JP2023/023579
Publication Date:
January 11, 2024
Filing Date:
June 26, 2023
Export Citation:
Assignee:
NICHIA CORP (JP)
International Classes:
G02B5/20; B32B7/023; B32B7/025; G02F1/1335; G02F1/13357; H01L33/50
Domestic Patent References:
| WO2021106556A1 | 2021-06-03 | |||
| WO2017026349A1 | 2017-02-16 |
Foreign References:
| JP2018152536A | 2018-09-27 |
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
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