US 12,133,454 B2
Organic electroluminescence device and polycyclic compound for organic electroluminescence device
Tetsuji Hayano, Yokohama (JP)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-Si (KR)
Filed on Sep. 18, 2019, as Appl. No. 16/575,334.
Claims priority of application No. 10-2018-0135437 (KR), filed on Nov. 6, 2018.
Prior Publication US 2020/0144503 A1, May 7, 2020
Int. Cl. H01L 51/00 (2006.01); C07F 5/02 (2006.01); C09K 11/06 (2006.01); H10K 85/30 (2023.01); H10K 50/11 (2023.01); H10K 101/10 (2023.01)
CPC H10K 85/322 (2023.02) [C07F 5/027 (2013.01); C09K 11/06 (2013.01); C09K 2211/1022 (2013.01); H10K 50/11 (2023.02); H10K 2101/10 (2023.02)] 7 Claims
OG exemplary drawing
 
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 first electrode and the second electrode each independently comprise at least one selected from the group consisting of Ag, Mg, Cu, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, Li, Ca, LiF/Ca, LiF/AI, Mo, Ti, In, Sn, and Zn, a compound of two or more thereof, a mixture of two or more thereof, or an oxide thereof, and
wherein,
the emission layer comprises a polycyclic compound represented by Formula 2:

OG Complex Work Unit Chemistry
 and
in Formula 2,
Ar1 and Ar2 are each independently a phenyl group,
X1 to X10 are each carbon,
R1 is a phenyl group,
R2 is a hydrogen atom,
R3 is a hydrogen atom,
R4 is a pyridine group,
R5 is a hydrogen atom,
e is 5,
f is 3,
a is 1,
c is 3, and
d is 2 and one R4 is bonded to X2 and another R4 is bonded to X4.