US 12,254,799 B2
Tandem micro-light emitting diode redundancy architecture
Thomas Charisoulis, San Carlos, CA (US); Saif Choudhary, San Jose, CA (US); Xia Li, San Jose, CA (US); Tore Nauta, Santa Cruz, CA (US); and Kapil V Sakariya, Los Altos, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Aug. 12, 2022, as Appl. No. 17/887,148.
Claims priority of provisional application 63/247,201, filed on Sep. 22, 2021.
Prior Publication US 2023/0086380 A1, Mar. 23, 2023
Int. Cl. G09G 3/00 (2006.01); H01L 21/66 (2006.01); H01L 25/16 (2023.01)
CPC G09G 3/006 (2013.01) [H01L 22/22 (2013.01); H01L 22/32 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0626 (2013.01); G09G 2330/021 (2013.01); G09G 2330/08 (2013.01); H01L 25/167 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display system, comprising:
a plurality of primary light emitting diodes configurable to emit light, wherein the plurality of primary light emitting diodes are coupled to a common anode, and wherein at least a first primary light emitting diode of the plurality of primary light emitting diodes is shorted; and
a plurality of secondary light emitting diodes configurable to emit light, wherein at least a first secondary light emitting diode of the plurality of secondary light emitting diodes associated with the first primary light emitting diode is configured to be driven with twice as much current based at least in part on the first primary light emitting diode being shorted, wherein each primary light emitting diode of the plurality of primary light emitting diodes is coupled in series with a respective secondary light emitting diode of the plurality of secondary light emitting diodes.