Invention Grant
- Patent Title: Light emitting device and method of manufacturing the same
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Application No.: US15680212Application Date: 2017-08-18
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Publication No.: US10763405B2Publication Date: 2020-09-01
- Inventor: Hiroto Tamaki
- Applicant: NICHIA CORPORATION
- Applicant Address: JP Anan-shi
- Assignee: NICHIA CORPORATION
- Current Assignee: NICHIA CORPORATION
- Current Assignee Address: JP Anan-shi
- Agency: Mori & Ward, LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@2b598c81
- Main IPC: H01L33/50
- IPC: H01L33/50 ; H01L33/54 ; H01L23/00

Abstract:
A light emitting device including a light emitting element including an element substrate and semiconductor layers formed thereon, an encapsulating member that covers the sides of the light emitting element and forms a cavity at the upper surface of the light emitting element, and a wavelength-conversion layer in the cavity. The wavelength-conversion layer being capable of converting that converts the wavelength of light emitted by the light emitting element. The wavelength-conversion layer includes a first wavelength-conversion sub layer which is disposed at the upper surface of the light emitting element, and a second wavelength-conversion sub layer which is disposed on the first wavelength-conversion sub layer. The first wavelength-conversion sub layer includes first phosphors having a first resistance to environmental exposure, and the second wavelength-conversion sub layer includes second phosphors having a second resistance which is higher than that of the first wavelength-conversion sub layer.
Public/Granted literature
- US20170345978A1 LIGHT EMITTING DEVICE AND METHOD OF MANUFACTURING THE SAME Public/Granted day:2017-11-30
Information query
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