The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 18, 2023
Filed:
Jul. 19, 2021
Applicant:
Intematix Corporation, Fremont, CA (US);
Inventors:
Assignee:
Intematix Corporation, Fremont, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 33/50 (2010.01); C09K 11/61 (2006.01); C09K 11/66 (2006.01); H01L 25/075 (2006.01); H01L 33/60 (2010.01); C09K 11/77 (2006.01);
U.S. Cl.
CPC ...
H01L 33/502 (2013.01); C09K 11/616 (2013.01); C09K 11/665 (2013.01); C09K 11/7774 (2013.01); C09K 11/77348 (2021.01); H01L 25/0753 (2013.01); H01L 33/60 (2013.01); H01L 2933/0041 (2013.01); H01L 2933/0058 (2013.01);
Abstract
A light emitting device includes a Chip Scale Packaged (CSP) LED, the CSP LED including an LED chip that generates blue excitation light; and a photoluminescence layer that covers a light emitting face of the LED chip, wherein the photoluminescence layer comprises from 75 wt % to 100 wt % of a manganese-activated fluoride photoluminescence material of the total photoluminescence material content of the layer. The device/CSP LED can further include a further photoluminescence layer that covers the first photoluminescence and that includes a photoluminescence material that generates light with a peak emission wavelength from 500 nm to 650 nm.