US 12,033,993 B2
Display device having plurality of light emitting elements between a bank structure
Yong Hoon Yang, Hwaseong-si (KR); Min Suk Ko, Cheonan-si (KR); Si Kwang Kim, Daegu (KR); and Kab Jong Seo, Hwaseong-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Sep. 3, 2020, as Appl. No. 17/011,897.
Claims priority of application No. 10-2020-0019066 (KR), filed on Feb. 17, 2020.
Prior Publication US 2021/0257349 A1, Aug. 19, 2021
Int. Cl. H01L 29/205 (2006.01); H01L 23/00 (2006.01); H01L 25/16 (2023.01); H01L 33/00 (2010.01); H01L 33/60 (2010.01); H01L 33/62 (2010.01); H01L 27/12 (2006.01); H01L 33/56 (2010.01)
CPC H01L 25/167 (2013.01) [H01L 24/24 (2013.01); H01L 24/82 (2013.01); H01L 33/60 (2013.01); H01L 33/62 (2013.01); H01L 27/1225 (2013.01); H01L 27/124 (2013.01); H01L 27/1248 (2013.01); H01L 27/1255 (2013.01); H01L 33/56 (2013.01); H01L 2224/24011 (2013.01); H01L 2224/24146 (2013.01); H01L 2224/82143 (2013.01); H01L 2924/12041 (2013.01); H01L 2924/1426 (2013.01); H01L 2933/005 (2013.01); H01L 2933/0066 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A display device comprising:
a substrate;
a first bank on the substrate, at least portions of the first bank being spaced apart from each other;
a plurality of first electrodes on the substrate, at least portions of the first electrodes being on portions of the first bank;
a second electrode on the substrate, the second electrode being spaced apart from and between adjacent ones of the first electrodes, at least a portion of the second electrode being on a portion of the first bank;
a first insulating layer between the first electrodes and the second electrode and partially covering the first electrodes and the second electrode;
a plurality of light emitting elements on the first insulating layer and overlapping at least a portion of the first electrodes and at least portion of the second electrode with respect to the substrate, the light emitting elements comprising a plurality of semiconductor layers, an active layer between the semiconductor layers, and an insulation layer surrounding a periphery of the active layer and at least portions of the semiconductor layers;
a second insulating layer between the first electrodes and the second electrode and at least partially covering the light emitting elements;
a plurality of first contact electrodes respectively on the first electrodes and contacting one end portion of the light emitting elements; and
a second contact electrode on the second electrode and contacting another end portion of the light emitting elements,
wherein a length of the light emitting element is longer than a width of the second insulating layer.