US 12,495,680 B2
Display device and manufacturing method thereof
Sang Gyun Kim, Hwaseong-si (KR); Dae Woong Lee, Seoul (KR); and Ill Hun Cho, Seoul (KR)
Assigned to Samsung Display Co., LTD., Gyeonggi-do (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Aug. 31, 2021, as Appl. No. 17/463,304.
Claims priority of application No. 10-2020-0150212 (KR), filed on Nov. 11, 2020.
Prior Publication US 2022/0149317 A1, May 12, 2022
Int. Cl. H01L 51/52 (2006.01); H10K 59/122 (2023.01); H10K 59/124 (2023.01); H10K 59/80 (2023.01); H10K 59/12 (2023.01); H10K 59/123 (2023.01); H10K 71/00 (2023.01)
CPC H10K 59/122 (2023.02) [H10K 59/124 (2023.02); H10K 59/80522 (2023.02); H10K 59/1201 (2023.02); H10K 59/123 (2023.02); H10K 59/80521 (2023.02); H10K 71/00 (2023.02)] 15 Claims
OG exemplary drawing
 
1. A display device comprising:
a substrate;
a transistor disposed on the substrate;
a first electrode connected to the transistor;
an auxiliary electrode disposed on a same layer as the first electrode;
an emission layer on the first electrode; and
a second electrode on the emission layer,
wherein the auxiliary electrode includes an opening that separates a first edge surface of the auxiliary electrode from a second edge surface of the auxiliary electrode in a first direction parallel to an upper surface of the substrate,
wherein a portion of the second electrode is in the opening of the auxiliary electrode,
wherein a first end of the portion of the second electrode is opposite a second end of the portion of the second electrode,
wherein the first edge surface of the auxiliary electrode and the first end of the portion of the second electrode are in direct physical contact with each other at the opening of the auxiliary electrode, and
wherein the second edge surface of the auxiliary electrode and the second end of the portion of the second electrode are in direct physical contact with each other at the opening of the auxiliary electrode.