US 12,133,404 B2
Organic light-emitting diode and method of manufacturing the same
Yeongrong Park, Yongin-si (KR); Dongkyu Seo, Yongin-si (KR); Junyong Shin, Yongin-si (KR); Byeongwook Yoo, Yongin-si (KR); Daeho Lee, Yongin-si (KR); and Byungseok Lee, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Nov. 15, 2023, as Appl. No. 18/510,619.
Application 18/510,619 is a division of application No. 17/231,968, filed on Apr. 15, 2021, granted, now 11,825,675.
Claims priority of application No. 10-2020-0105531 (KR), filed on Aug. 21, 2020.
Prior Publication US 2024/0090254 A1, Mar. 14, 2024
Int. Cl. H10K 50/15 (2023.01); H10K 50/17 (2023.01); H10K 71/00 (2023.01)
CPC H10K 50/15 (2023.02) [H10K 50/17 (2023.02); H10K 71/00 (2023.02)] 10 Claims
OG exemplary drawing
 
1. A method of manufacturing an organic light-emitting diode, the method comprising:
forming a first electrode over a substrate, the first electrode comprising a first metal;
forming a first metal layer on the first electrode, the first metal layer comprising the first metal;
forming a hole injection layer by forming a first metal compound layer on the first metal layer, the hole injection layer comprising a second metal compound layer and a second metal layer, the second metal layer being on the second metal compound layer, the second metal compound layer being formed by oxidizing the first metal layer through the first metal compound layer, and the second metal layer being formed by reducing the first metal compound layer through the first metal layer;
forming an organic emission layer on the hole injection layer; and
forming a second electrode on the organic emission layer.