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:
May. 24, 2022
Filed:
Dec. 15, 2020
Applicant:
Lumileds Llc, San Jose, CA (US);
Inventors:
Antonio Lopez Julia, Vaals, DE;
Zhi Hua Song, Palo Alto, CA (US);
Assignee:
Lumileds LLC, San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 45/30 (2020.01); H05B 45/325 (2020.01); G09G 3/32 (2016.01); H05B 45/14 (2020.01);
U.S. Cl.
CPC ...
H05B 45/14 (2020.01); H05B 45/325 (2020.01);
Abstract
Discussed herein are systems, devices, methods, and computer-readable media for reducing a number of undriven or underdriven uLEDs of a uLED die. A method can include identifying, by a controller of a micro light emitting diode (uLED) die, a dynamic series resistance (R) or forward voltage (V) of a uLED of the uLED die, selecting, by the controller and based on the identified Ror V, a current level (I) less than a maximum current level (I) supplied by a uLED driver coupled to the uLED die, and causing, by the controller, current, at the selected current level, to be supplied to the uLED driver.