US 11,916,173 B2
Light-emitting device and display device using the same
Hyunwoo Kim, Seoul (KR); and Jinyeong Kim, Goyang-si (KR)
Assigned to LG DISPLAY CO., LTD., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on Mar. 22, 2022, as Appl. No. 17/701,590.
Application 17/701,590 is a continuation of application No. 16/046,037, filed on Jul. 26, 2018, granted, now 11,316,072.
Claims priority of application No. 10-2017-0167546 (KR), filed on Dec. 7, 2017.
Prior Publication US 2022/0216376 A1, Jul. 7, 2022
Int. Cl. H01L 33/00 (2010.01); H01L 25/075 (2006.01); H01L 33/20 (2010.01); H01L 33/38 (2010.01); H01L 33/44 (2010.01); H01L 33/50 (2010.01); H01L 33/60 (2010.01); H01L 33/62 (2010.01)
CPC H01L 33/44 (2013.01) [H01L 25/0753 (2013.01); H01L 33/20 (2013.01); H01L 33/38 (2013.01); H01L 33/507 (2013.01); H01L 33/60 (2013.01); H01L 33/62 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A display device, comprising:
a substrate;
a thin-film transistor and a common power line disposed on the substrate;
a passivation layer disposed on the thin-film transistor and the common power line;
a light-emitting device disposed on the passivation layer and including a first electrode, a second electrode, and a structure disposed between the first electrode and the second electrode;
a planarization layer disposed on the passivation layer to cover a side surface of the light-emitting device;
a pixel electrode electrically connected to the thin-film transistor through a first circuit contact hole in the passivation layer and the planarization layer, and electrically connected to the first electrode through an electrode contact hole in the planarization layer; and
a common electrode electrically connected to the common power line through a second circuit contact hole formed in the passivation layer and planarization layer, and electrically connected to the second electrode through the electrode contact hole formed in the planarization layer.