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. 11, 2023
Filed:
Mar. 03, 2021
Applicant:
Lumileds Llc, San Jose, CA (US);
Inventors:
Robert Armitage, Cupertino, CA (US);
Isaac Wildeson, San Jose, CA (US);
Assignee:
Lumileds LLC, San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/38 (2010.01); H01L 33/62 (2010.01); H01L 33/58 (2010.01);
U.S. Cl.
CPC ...
H01L 33/382 (2013.01); H01L 33/58 (2013.01); H01L 33/62 (2013.01);
Abstract
Described at light emitting diode (LED) devices emitting different colors on the same wafer, which facilitates their integration with close packing density (not requiring transfer of devices from two different wafers to a third substrate module). The LED devices and driving methods allow light of different colors and similar luminance levels to be emitted for given input current.