US 11,864,460 B2
Organic light emitting device
Sang Duk Suh, Daejeon (KR); Jae Seung Ha, Daejeon (KR); Dong Hoon Lee, Daejeon (KR); Minseung Chun, Daejeon (KR); Ji Young Choi, Daejeon (KR); Woochul Lee, Daejeon (KR); Joo Ho Kim, Daejeon (KR); and Hoon Jun Kim, Daejeon (KR)
Assigned to LG CHEM, LTD., Seoul (KR)
Appl. No. 17/263,514
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Sep. 20, 2019, PCT No. PCT/KR2019/012224
§ 371(c)(1), (2) Date Jan. 26, 2021,
PCT Pub. No. WO2020/060280, PCT Pub. Date Mar. 26, 2020.
Claims priority of application No. 10-2018-0112912 (KR), filed on Sep. 20, 2018.
Prior Publication US 2021/0399223 A1, Dec. 23, 2021
Int. Cl. H01L 51/50 (2006.01); H10K 85/60 (2023.01); H10K 50/11 (2023.01); H10K 101/10 (2023.01); H10K 101/40 (2023.01)
CPC H10K 85/633 (2023.02) [H10K 85/624 (2023.02); H10K 85/626 (2023.02); H10K 85/6574 (2023.02); H10K 50/11 (2023.02); H10K 2101/10 (2023.02); H10K 2101/40 (2023.02)] 10 Claims
OG exemplary drawing
 
1. An organic light emitting device comprising:
a first electrode;
a second electrode provided opposite to the first electrode; and
an organic material provided between the first electrode and the second electrode,
wherein the organic material includes a hole transfer layer and an electron blocking layer, and the hole transfer layer and the electron blocking layer include a compound of the following Chemical Formula 1;
the materials of the hole transfer layer and the electron blocking layer are different from each other; and
the organic material further comprising one or more layers that are neither the hole transfer layer nor the electron blocking layer include a compound of the following Chemical Formula 2:

OG Complex Work Unit Chemistry
in Chemical Formula 1,
Ar1 and Ar2 are the same as or different from each other, and each independently a substituted or unsubstituted aryl group including one or two 6-membered rings, or a substituted or unsubstituted heteroaryl group;
a and b are the same as or different from each other, and each independently a substituted or unsubstituted aromatic ring;
X1 and X2 are the same as or different from each other, and each independently a direct bond or CRR′; and
when one of X1 and X2 is a direct bond, the other one is CRR′,

OG Complex Work Unit Chemistry
in Chemical Formula 2,
Ar3 is a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group;
L is a substituted or unsubstituted arylene group;
R, R′, R1 and R2 are the same as or different from each other, and each independently hydrogen, deuterium, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group, or bond to adjacent substituents to form a substituted or unsubstituted hydrocarbon ring;
a is an integer of 0 to 8;
b is an integer of 0 to 7;
when a is a plural number, R1S are the same as or different from each other; and
when b is a plural number, R2S are the same as or different from each other.