Invention Grant
- Patent Title: Light emitting diode device with luminescent material
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Application No.: US14840449Application Date: 2015-08-31
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Publication No.: US09944849B2Publication Date: 2018-04-17
- Inventor: Joerg Meyer , Volker Weiler , Peter J. Schmidt
- Applicant: KONINKLIJKE PHILIPS N.V.
- Applicant Address: NL
- Assignee: Koninklijke Philips N.V.
- Current Assignee: Koninklijke Philips N.V.
- Current Assignee Address: NL
- Priority: EP09179553 20091217
- Main IPC: H01L33/00
- IPC: H01L33/00 ; C09K11/64 ; C09K11/77 ; H01L33/50 ; C04B35/553

Abstract:
The invention provides a light emitting diode device comprising a light emitting diode arranged on a substrate and a wavelength converting element. The wavelength converting element contains as a luminescent material a Mn4+-activated fluoride compound having a garnet-type crystal structure. The Mn4+-activated fluoride compound preferably answers the general formula {A3}[B2-x-yMnxMgy](Li3)F12-dOd, in which formula A stands for at least one element selected from the series consisting of Na+ and K+ and B stands for at least one element selected from the series consisting of Al3+, B3+, Sc3+, Fe3+, Cr3+, Ti4+ and In3+, and in which formula x ranges between 0.02 and 0.2, y ranges between 0.0 (and incl. 0.0) and 0.4 and d ranges between 0 (and incl. 0) and 1. Said compound is most preferably {Na3}[Al2-x-yMnxMgy](Li3)F12-dOd.
Public/Granted literature
- US20150372199A1 LIGHT EMITTING DIODE DEVICE WITH LUMINESCENT MATERIAL Public/Granted day:2015-12-24
Information query
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