US 12,089,307 B2
Dynamically regulated micro-LED pixel array
Ronald Johannes Bonne, Plainfield, IL (US); and Zhi Hua Song, Palo Alto, CA (US)
Assigned to Lumileds LLC, San Jose, CA (US)
Filed by Lumileds LLC, San Jose, CA (US)
Filed on May 25, 2022, as Appl. No. 17/824,805.
Application 17/824,805 is a continuation of application No. PCT/US2020/062452, filed on Nov. 26, 2020.
Claims priority of provisional application 62/941,123, filed on Nov. 27, 2019.
Prior Publication US 2023/0021907 A1, Jan. 26, 2023
Int. Cl. H05B 45/3725 (2020.01); G09G 3/32 (2016.01); H01L 27/15 (2006.01); H05B 45/18 (2020.01); H05B 45/325 (2020.01); H05B 45/44 (2020.01); H05B 47/165 (2020.01)
CPC H05B 45/3725 (2020.01) [G09G 3/32 (2013.01); H01L 27/156 (2013.01); H05B 45/18 (2020.01); H05B 45/325 (2020.01); H05B 45/44 (2020.01); H05B 47/165 (2020.01); G09G 2330/028 (2013.01); G09G 2330/12 (2013.01); G09G 2380/10 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A lighting system controller comprising:
at least one current source configured to drive a plurality of light emitting diodes (LEDs) of LED pixels in an LED array;
a temperature sensor configured to sense a temperature of the LED array;
control circuitry coupled to a power supply, the control circuitry configured to:
receive operating condition data indicating the temperature of the LED array; and
provide a signal configured to cause the power supply to adjust a power supply voltage generated by the power supply based on the temperature of the LED array; and
a memory configured to store process data of the LED array, the operating condition data further including at least a portion of the process data.