US 11,917,863 B2
Display device and method of providing the same
Sang Hyung Lim, Cheonan-si (KR); Se Jin Park, Suwon-si (KR); Min Gyu Jang, Seoul (KR); and In Hye Heo, Seongnam-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on Sep. 8, 2021, as Appl. No. 17/468,974.
Claims priority of application No. 10-2021-0005853 (KR), filed on Jan. 15, 2021.
Prior Publication US 2022/0231099 A1, Jul. 21, 2022
Int. Cl. H10K 59/122 (2023.01); H10K 59/123 (2023.01); H10K 71/00 (2023.01); H10K 102/10 (2023.01)
CPC H10K 59/122 (2023.02) [H10K 59/123 (2023.02); H10K 71/00 (2023.02); H10K 2102/103 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A display device comprising:
a light-emitting element comprising:
a pixel electrode including silver,
a common electrode facing the pixel electrode, and
an emission layer between the pixel electrode and the common electrode,
a pixel-defining layer which is between the pixel electrode and the emission layer and exposes the pixel electrode to outside the pixel-defining layer; and
a barrier layer which is between the pixel-defining layer and the emission layer, the barrier layer comprising:
a low-resistance area corresponding to the pixel electrode and having an electrical resistance, and
a high-resistance area extended from the low-resistance area, corresponding to the pixel-defining layer and having an electrical resistance which is higher than the electrical resistance of the low-resistance area.