US 12,364,112 B2
Display device comprising a connection electrode disposed on an organic insulating layer and a portion of which is disposed in a contact hole
Youn Joon Kim, Seoul (KR); Jinho Ju, Seoul (KR); and Jonghyun Choi, Seoul (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-Si (KR)
Filed on Apr. 15, 2022, as Appl. No. 17/721,696.
Claims priority of application No. 10-2021-0110759 (KR), filed on Aug. 23, 2021.
Prior Publication US 2023/0055898 A1, Feb. 23, 2023
Int. Cl. H10K 59/123 (2023.01); H10K 59/124 (2023.01); H10K 71/00 (2023.01); H10K 77/10 (2023.01); H10K 59/12 (2023.01); H10K 102/00 (2023.01)
CPC H10K 59/123 (2023.02) [H10K 71/00 (2023.02); H10K 59/1201 (2023.02); H10K 59/124 (2023.02); H10K 77/111 (2023.02); H10K 2102/311 (2023.02)] 9 Claims
OG exemplary drawing
 
1. A display device comprising:
a base layer;
a circuit layer disposed on the base layer; and
a light emitting element disposed on the circuit layer,
wherein the circuit layer includes at least one organic insulating layer in which a contact hole is defined; and
a connection electrode disposed on the at least one organic insulating layer, a portion of which is disposed in the contact hole,
wherein a minimum value of a width in one direction of the contact hole is about 1.8 micrometers or more and less than about 2.5 micrometers,
wherein an upper width of the connection electrode in the one direction is about 3.6 micrometers or more and less than about 6 micrometers,
wherein the circuit layer includes:
a transistor disposed between the at least one organic insulating layer and the base layer; and
a lower connection electrode connected to the transistor and electrically connected to the connection electrode and,
wherein an upper width of the lower connection electrode in the one direction is substantially equal to an upper width of the connection electrode in the one direction.