	US 12,108,667 B2
	Organic electroluminescence device and spiro compound for organic electroluminescence device
Seulong Kim, Hwaseong-si (KR); Kyungsik Kim, Suwon-si (KR); Sungwook Kim, Hwaseong-si (KR); Sung-Soo Bae, Seoul (KR); and Jaeweon Hur, Busan (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Appl. No. 17/293,309
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
PCT Filed Apr. 15, 2019, PCT No. PCT/KR2019/004532 § 371(c)(1), (2) Date May 12, 2021, PCT Pub. No. WO2020/122327, PCT Pub. Date Jun. 18, 2020.
Claims priority of application No. 10-2018-0162223 (KR), filed on Dec. 14, 2018.
Prior Publication US 2021/0408397 A1, Dec. 30, 2021
Int. Cl. H01L 51/00 (2006.01); H10K 85/40 (2023.01); H10K 85/60 (2023.01); H10K 50/11 (2023.01); H10K 101/10 (2023.01)

CPC H10K 85/6572 (2023.02) [H10K 85/40 (2023.02); H10K 85/615 (2023.02); H10K 85/636 (2023.02); H10K 85/654 (2023.02); H10K 85/6574 (2023.02); H10K 50/11 (2023.02); H10K 2101/10 (2023.02)]

12 Claims

1. An organic electroluminescence device, comprising:

a first electrode;

a hole transport region on the first electrode;

an emission layer on the hole transport region;

an electron transport region on the emission layer; and

a second electrode on the electron transport region,

wherein the emission layer comprises a spiro compound containing an aryl amine group and an indenoindole derivative and the emission layer emits green light,

wherein the emission layer comprises a host and a dopant, and the dopant comprises the spiro compound.