US 12,270,905 B2
Lighting device for frequency-modulated emission
Emanuel Nicolaas Hermanus Johannes Stassar, Sprang Capelle (NL)
Assigned to LUMILEDS, LLC, San Jose, CA (US)
Filed by Lumileds LLC, San Jose, CA (US)
Filed on Jan. 16, 2020, as Appl. No. 16/744,785.
Claims priority of application No. 19152049 (EP), filed on Jan. 16, 2019.
Prior Publication US 2020/0225352 A1, Jul. 16, 2020
Int. Cl. H01L 27/15 (2006.01); G01S 7/4911 (2020.01); G01S 17/34 (2020.01); G05F 3/16 (2006.01); H01L 23/00 (2006.01); H01L 25/075 (2006.01); H01L 25/16 (2023.01); H05B 33/08 (2020.01); H10H 20/857 (2025.01); H10H 20/01 (2025.01)
CPC G01S 17/34 (2020.01) [G01S 7/4911 (2013.01); H01L 24/48 (2013.01); H01L 25/0753 (2013.01); H01L 25/167 (2013.01); H10H 20/857 (2025.01); H01L 2224/48137 (2013.01); H01L 2924/12041 (2013.01); H01L 2924/1306 (2013.01); H10H 20/0364 (2025.01)] 12 Claims
OG exemplary drawing
 
1. A lighting device comprising:
a substrate;
a string of first electrode patches disposed on the substrate in a two-dimensional grid, the string comprising a beginning electrode patch, an ending electrode patch, and a plurality of intervening electrode patches between the beginning and ending electrode patches;
a second electrode patch adjacent the beginning electrode patch;
a plurality of light-emitting diodes (LEDs), wherein each one of the plurality of LEDs comprises a cathode and an anode, and a same one of the cathode or the anode of each of the plurality of LEDs is disposed directly on a respective one of the first electrode patches;
an electronic switch on the second electrode patch;
a plurality of first wire bonds electrically coupled between the anode or the cathode of a respective one of the plurality of LEDs that is not disposed directly on a respective one of the first electrode patches and an adjacent one of the first electrode patches; and
a plurality of second wire bonds electrically coupled between the second electrode patch and the beginning electrode patch in the string such that only the beginning electrode patch in the string is electrically coupled to the electronic switch via wire bonds.