Invention Grant
- Patent Title: Reflective structure for light emitting devices
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Application No.: US15714613Application Date: 2017-09-25
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Publication No.: US10665759B2Publication Date: 2020-05-26
- Inventor: Erik C. Nelson , Parijat P. Deb
- Applicant: Lumileds LLC
- Applicant Address: US CA San Jose
- Assignee: LUMILEDS LLC
- Current Assignee: LUMILEDS LLC
- Current Assignee Address: US CA San Jose
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@52ca4ed6
- Main IPC: H01L33/50
- IPC: H01L33/50 ; H01L33/10 ; H01L33/00 ; H01L33/42 ; H01L33/32 ; H01L33/40 ; H01L33/46 ; H01L33/02 ; H01L33/14 ; H01L33/16

Abstract:
Described is a reflector for light emitting devices. A device includes a reflector in contact with a first n-type region and a second n-type region. The reflector includes multiple layers. One layer having an index of refraction different than the other layers. The device includes a light emitting region (LER) in contact with the second n-type region, a p-type region in contact with the LER and a light extraction region (LXR) in contact with the p-type region. A majority of light escapes the device through the LXR. The reflector reflects light emitted by the LER back towards the LXR. In another device, a reflector is embedded in a n-type region of the device. The device includes a LER, a p-type region, and a wavelength converter structure. The reflector reflects light emitted by the wavelength converting structure back towards the wavelength converting structure.
Public/Granted literature
- US20180090645A1 REFLECTIVE STRUCTURE FOR LIGHT EMITTING DEVICES Public/Granted day:2018-03-29
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