US 11,901,481 B2
Reduction of defective pixel appearance in light-emitting arrays
Toni Lopez, Vaals (NL); Hossein Lotfi, Folsom, CA (US); Isaac Wildeson, San Jose, CA (US); and Oleg Shchekin, San Francisco, CA (US)
Assigned to Lumileds LLC, San Jose, CA (US)
Filed by LUMILEDS LLC, San Jose, CA (US)
Filed on Dec. 1, 2021, as Appl. No. 17/539,941.
Claims priority of provisional application 63/121,465, filed on Dec. 4, 2020.
Prior Publication US 2022/0181515 A1, Jun. 9, 2022
Int. Cl. H01L 33/02 (2010.01); H01L 33/08 (2010.01); H01L 33/50 (2010.01)
CPC H01L 33/025 (2013.01) [H01L 33/08 (2013.01); H01L 33/504 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A light-emitting device comprising:
an array of LEDs, one or more of the LEDs being defective; and
a set of one or more transmissive optical elements positioned at a light-emitting surface of the LED array,
each transmissive optical element of the set being positioned at a location of a corresponding one of the one or more defective LEDs and extending over the corresponding defective LED and laterally at least partly over one or more LEDs of the array adjacent to the corresponding defective LED,
each transmissive optical element of the set being arranged so as to transmit laterally at least a portion of light emitted by the one or more corresponding adjacent LEDs to propagate away from the array from the location of the corresponding defective LED.