US 11,854,788 B2
Micro assembled LED displays and lighting elements
Christopher Bower, Raleigh, NC (US); Matthew Meitl, Durham, NC (US); David Gomez, Holly Springs, NC (US); Salvatore Bonafede, Chapel Hill, NC (US); David Kneeburg, Durham, NC (US); Alin Fecioru, Cork (IE); and Carl Prevatte, Raleigh, NC (US)
Assigned to X Display Company Technology Limited, Dublin (IE)
Filed by X Display Company Technology Limited, Dublin (IE)
Filed on Mar. 16, 2021, as Appl. No. 17/203,314.
Application 17/203,314 is a continuation of application No. 16/244,860, filed on Jan. 10, 2019, granted, now 10,985,143.
Application 16/244,860 is a continuation of application No. 14/743,788, filed on Jun. 18, 2015, granted, now 10,224,460.
Claims priority of provisional application 62/169,531, filed on Jun. 1, 2015.
Claims priority of provisional application 62/148,603, filed on Apr. 16, 2015.
Claims priority of provisional application 62/131,230, filed on Mar. 10, 2015.
Claims priority of provisional application 62/056,419, filed on Sep. 26, 2014.
Claims priority of provisional application 62/055,485, filed on Sep. 25, 2014.
Claims priority of provisional application 62/029,533, filed on Jul. 27, 2014.
Claims priority of provisional application 62/026,695, filed on Jul. 20, 2014.
Claims priority of provisional application 62/014,077, filed on Jun. 18, 2014.
Prior Publication US 2021/0225815 A1, Jul. 22, 2021
Int. Cl. H01L 25/075 (2006.01); G09G 3/32 (2016.01); H01L 33/38 (2010.01); H01L 23/482 (2006.01); H01L 23/538 (2006.01); G02F 1/167 (2019.01); H01L 33/62 (2010.01); H01L 33/50 (2010.01); H01L 33/60 (2010.01); G02B 26/04 (2006.01); H01L 25/16 (2023.01); H01L 33/36 (2010.01); H01L 33/48 (2010.01); H05K 1/03 (2006.01); H05K 1/09 (2006.01); H05K 1/18 (2006.01); H05K 5/00 (2006.01); G09G 3/22 (2006.01); H01L 27/15 (2006.01); F21V 9/08 (2018.01); H01L 33/58 (2010.01); F21Y 105/10 (2016.01); F21Y 115/10 (2016.01); F21Y 113/13 (2016.01); H01L 33/20 (2010.01); H01L 33/40 (2010.01)
CPC H01L 25/0753 (2013.01) [F21V 9/08 (2013.01); G02B 26/04 (2013.01); G02F 1/167 (2013.01); G09G 3/22 (2013.01); G09G 3/32 (2013.01); H01L 23/4821 (2013.01); H01L 23/5381 (2013.01); H01L 25/167 (2013.01); H01L 27/156 (2013.01); H01L 33/36 (2013.01); H01L 33/38 (2013.01); H01L 33/385 (2013.01); H01L 33/48 (2013.01); H01L 33/50 (2013.01); H01L 33/502 (2013.01); H01L 33/508 (2013.01); H01L 33/58 (2013.01); H01L 33/60 (2013.01); H01L 33/62 (2013.01); H05K 1/0306 (2013.01); H05K 1/09 (2013.01); H05K 1/181 (2013.01); H05K 1/182 (2013.01); H05K 5/0017 (2013.01); F21Y 2105/10 (2016.08); F21Y 2113/13 (2016.08); F21Y 2115/10 (2016.08); G09G 2300/0452 (2013.01); G09G 2300/0842 (2013.01); G09G 2310/0264 (2013.01); H01L 33/20 (2013.01); H01L 33/405 (2013.01); H01L 2224/18 (2013.01); H01L 2224/73267 (2013.01); H01L 2224/92244 (2013.01); H05K 2201/0329 (2013.01); H05K 2201/10106 (2013.01); H05K 2201/10128 (2013.01); H05K 2201/10166 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method of assembling an inorganic light emitting diode (LED) display, the method comprising:
providing a plurality of printable inorganic LEDs in or on one or more native substrates;
transfer printing the plurality of printable inorganic LEDs onto a display substrate separate and distinct from the one or more native substrates to form a plurality of pixels, wherein each of the pixels comprises a set of primary inorganic LEDs and a set of redundant inorganic LEDs;
connecting the primary inorganic LEDs to a display circuit in order to form the display comprising the plurality of pixels;
testing the display to identify defective primary inorganic LEDs in the plurality of pixels; and
establishing an electrical connection to a respective redundant LED of the set of redundant inorganic LEDs in close proximity to each of the defective primary inorganic LEDs so that each of the redundant inorganic LEDs is connected to the display circuit by placing a conductive jumper between the respective redundant LED and the one of the defective primary inorganic LEDs corresponding to the respective redundant LED by micro assembly.