Title:
白色発光装置
Document Type and Number:
Japanese Patent JP7282767
Kind Code:
B2
Abstract:
A white light emitting device includes: first light-emitting units to which a first current is applied; and second light-emitting units to which a second current which is different from the first current is applied. When the first current is applied to the first light-emitting units and the second current is applied to the second light-emitting units, an average emission chromaticity of the first light-emitting units and an average emission chromaticity of the second light-emitting units are identical colors. When the same current is applied to both the first light-emitting units and the second light-emitting units, the average emission chromaticity of the first light-emitting units and the average emission chromaticity of the second light-emitting units are non-identical colors.
Inventors:
Hidetoshi Hisanaga
Tetsuya Kamada
Shigeo Hayashi
Takashi Kuwaharada
Tetsuya Kamada
Shigeo Hayashi
Takashi Kuwaharada
Application Number:
JP2020525418A
Publication Date:
May 29, 2023
Filing Date:
May 29, 2019
Export Citation:
Assignee:
Nuvoton Technology Japan Co., Ltd.
International Classes:
H01L33/50; F21S41/125; F21S41/153; H05B45/00
Domestic Patent References:
| JP2013135073A | ||||
| JP201168580A | ||||
| JP2017193257A | ||||
| JP2007110090A |
Attorney, Agent or Firm:
Hiromori Arai
Eisaku Teratani
Shinichi Michisaka
Eisaku Teratani
Shinichi Michisaka