US 12,255,194 B2
Display device
Min Kyu Woo, Seoul (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on Jun. 3, 2022, as Appl. No. 17/832,066.
Claims priority of application No. 10-2021-0137375 (KR), filed on Oct. 15, 2021.
Prior Publication US 2023/0120255 A1, Apr. 20, 2023
Int. Cl. H01L 25/16 (2023.01); H01L 23/00 (2006.01); H01L 33/62 (2010.01); G09G 3/32 (2016.01); H01L 33/32 (2010.01)
CPC H01L 25/167 (2013.01) [H01L 24/24 (2013.01); H01L 24/25 (2013.01); H01L 33/62 (2013.01); G09G 3/32 (2013.01); G09G 2300/0842 (2013.01); H01L 33/325 (2013.01); H01L 2224/24051 (2013.01); H01L 2224/24145 (2013.01); H01L 2224/25175 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display device comprising:
a first electrode disposed on a substrate and extending in a first direction;
second electrodes spaced apart from the first electrode in a second direction, the first electrode being disposed between the second electrodes;
light emitting elements disposed on the first electrode and the second electrodes;
a bank layer extending in the first direction and the second direction and surrounding:
an emission area in which the light emitting elements are disposed,
a first sub-area disposed on a side of the emission area in the first direction, and
a second sub-area disposed on another side of the emission area in the first direction; and
connection electrodes disposed on at least one of the first electrode and the second electrodes and electrically connected to the light emitting elements, wherein
each of the second electrodes comprises:
an electrode stem part overlapping the bank layer in a plan view and extending in the first direction; and
electrode branch parts branching from the electrode stem part and disposed partially in the emission area, and
the connection electrodes comprise:
a first connection electrode disposed on the first electrode, overlapping an upper bank part of the bank layer disposed above the emission area in a plan view, and having a part disposed in the first sub-area;
a second connection electrode disposed on a first electrode branch part of one of the second electrodes, overlapping a lower bank part of the bank layer disposed below the emission area in a plan view, and having a part disposed in the second sub-area; and
a third connection electrode disposed on second electrode branch parts of different second electrodes of the second electrodes and on the first electrode and surrounding a part of the first connection electrode.