	US 12,428,596 B2
	Organic light emitting device
Sang-Beom Kim, Paju-si (KR); Seung-Hee Yoon, Paju-si (KR); In-Bum Song, Paju-si (KR); Shiren Kazushi, Paju-si (KR); and Sasada Yasuyuki, Paju-si (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Filed by LG DISPLAY CO., LTD., Seoul (KR)
Filed on May 25, 2021, as Appl. No. 17/329,506.
Claims priority of application No. 10-2020-0065125 (KR), filed on May 29, 2020; and application No. 10-2021-0063694 (KR), filed on May 17, 2021.
Prior Publication US 2021/0384437 A1, Dec. 9, 2021
Int. Cl. C09K 11/06 (2006.01); H10K 50/13 (2023.01); H10K 50/18 (2023.01); H10K 59/12 (2023.01); H10K 59/38 (2023.01); H10K 85/60 (2023.01)

CPC C09K 11/06 (2013.01) [H10K 85/626 (2023.02); H10K 85/631 (2023.02); H10K 85/633 (2023.02); H10K 85/654 (2023.02); H10K 85/6572 (2023.02); H10K 85/658 (2023.02); C09K 2211/1007 (2013.01); H10K 50/131 (2023.02); H10K 50/18 (2023.02); H10K 59/12 (2023.02); H10K 59/38 (2023.02)]

19 Claims

1. An organic light emitting device comprising:

a substrate; and

an organic light emitting diode over the substrate, the organic light emitting diode including a first electrode, a second electrode facing the first electrode and an emissive layer disposed between the first electrode and the second electrode,

wherein the emissive layer comprises at least one emitting material layer disposed between the first electrode and the second electrode and at least one electron blocking layer disposed between the first electrode and the at least one emitting material layer,

wherein the at least one emitting material layer includes a first host of an anthracene-based compound and a first dopant of a boron-based compound,

wherein an anthracene core of the first host is deuterated, and

wherein the at least one electron blocking layer includes an amine-based compound having the following structure of Formula 5:

wherein each of R₆₁to R₆₂and R₆₄is independently monocyclic aryl or polycyclic aryl, R₆₃is monocyclic arylene or polycyclic arylene, wherein at least one of R₆₁to R₆₄is polycyclic, and

wherein the first dopant is selected from the following compounds: