Invention Grant
- Patent Title: Full spectrum white light emitting devices
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Application No.: US18106442Application Date: 2023-02-06
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Publication No.: US11887973B2Publication Date: 2024-01-30
- Inventor: Yi-Qun Li , Xianglong Yuan , Jun-Gang Zhao
- Applicant: Intematix Corporation
- Applicant Address: US CA Fremont
- Assignee: Intematix Corporation
- Current Assignee: Intematix Corporation
- Current Assignee Address: US CA Fremont
- Agency: CrossPond Law
- Main IPC: H01L25/075
- IPC: H01L25/075 ; H01L33/50 ; H01L33/08 ; H01L33/32 ; H01L33/06

Abstract:
There is provided a full spectrum white light emitting device comprising: a broadband LED flip chip that generates broadband light of dominant wavelength from about 420 nm to about 480 nm and a FWHM from 25 nm to 50 nm; and at least one photoluminescence layer covering a light emitting face of the broadband LED flip chip; wherein the broadband LED flip chip comprises a broadband InGaN/GaN multiple quantum wells LED chip comprising multiple different wavelength quantum wells in its active region that generate multiple narrowband light emissions of multiple different wavelengths and wherein broadband light generated by the broadband LED flip chip is composed of a combination of the multiple narrowband light emissions, and wherein the at least one photoluminescence material layer comprises a first photoluminescence material which generates light with a peak emission wavelength from 490 nm to 550 nm; and a second photoluminescence material which generates light with a peak emission wavelength from 600 nm to 680 nm.
Public/Granted literature
- US20230290759A1 Full Spectrum White Light Emitting Devices Public/Granted day:2023-09-14
Information query
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