Invention Grant
- Patent Title: Phosphor-converted light emitting device
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Application No.: US14120297Application Date: 2014-05-14
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Publication No.: US10283681B2Publication Date: 2019-05-07
- Inventor: Brian T. Collins , Matthew Donofrio , Kevin W. Haberern , Bennett Langsdorf , Anoop Mathew , Harry A. Seibel , Iliya Todorov , Bradley E. Williams
- Applicant: Cree, Inc.
- Applicant Address: US NC Durham
- Assignee: Cree, Inc.
- Current Assignee: Cree, Inc.
- Current Assignee Address: US NC Durham
- Agency: Brinks Gilson & Lione
- Main IPC: H01L33/00
- IPC: H01L33/00 ; H01L33/50 ; H01L33/44

Abstract:
A phosphor-converted light emitting device includes a light emitting diode (LED) on a substrate, where the LED comprises a stack of epitaxial layers comprising a p-n junction. A wavelength conversion material is in optical communication with the LED. According to one embodiment of the phosphor-converted light emitting device, a selective filter is adjacent to the wavelength conversion material, and the selective filter comprises a plurality of nanoparticles for absorbing light from the LED not down-converted by the wavelength conversion material. According to another embodiment of the phosphor-converted light emitting device, a perpendicular distance between a perimeter of the LED on the substrate and an edge of the substrate is at least about 24 microns. According to another embodiment of the phosphor-converted light emitting device, the LED comprises a mirror layer on one or more sidewalls thereof for reducing light leakage through the sidewalls.
Public/Granted literature
- US20150069430A1 Phosphor-converted light emitting device Public/Granted day:2015-03-12
Information query
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