US 12,382,764 B2
Display device
Kwang Taek Hong, Seoul (KR); Hong Joon Moon, Cheonan-si (KR); and Jong Hwan Cha, Suwon-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on Jun. 9, 2022, as Appl. No. 17/836,609.
Claims priority of application No. 10-2021-0098438 (KR), filed on Jul. 27, 2021.
Prior Publication US 2023/0032600 A1, Feb. 2, 2023
Int. Cl. H10H 20/857 (2025.01); G09G 3/3258 (2016.01); H01L 25/075 (2006.01); H01L 25/16 (2023.01); H10D 86/40 (2025.01); H10H 20/819 (2025.01); H10H 20/831 (2025.01); H10H 20/85 (2025.01); H10H 29/14 (2025.01)
CPC H10H 20/857 (2025.01) [H10H 20/8312 (2025.01); H10H 29/142 (2025.01)] 18 Claims
OG exemplary drawing
 
1. A display device comprising:
an initialization voltage line disposed in a direction on a substrate;
a first interlayer insulating layer disposed on the initialization voltage line;
a low potential voltage line disposed on the first interlayer insulating layer, the low potential voltage line including a stepped portion and overlapping the initialization voltage line;
an auxiliary pattern disposed on the low potential voltage line and forming a flat portion with the stepped portion of the low potential voltage line;
a second interlayer insulating layer disposed on the auxiliary pattern;
a planarization layer disposed on the second interlayer insulating layer;
a first electrode and a second electrode that are disposed on the planarization layer and spaced apart from each other;
a light emitting element having ends aligned on the first electrode and the second electrode;
a first contact electrode electrically contacting an end of the light emitting element; and
a second contact electrode electrically contacting another end of the light emitting element,
wherein a distance from a top surface of the planarization layer to a top surface of the auxiliary pattern is equal to a distance from the top surface of the planarization layer to a top surface of the low potential voltage line.