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US 10,256,418 B2Granted
Organometallic compound and organic light-emitting device including the same
AssigneesSamsung Electronics Co., Ltd., Samsung SDI Co., Ltd.
InventorsWook Kim, Miyoung Chae, Dalho Huh, Hyunjung Kim, Kangmun Lee, Namheon Lee
Life of this patent
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Abstract
An organometallic compound represented by Formula 1: M(L1)n1(L2)n2 Formula 1 wherein in Formula 1, M, L1, L2, n1, and n2 are defined in the detailed description.
Claims4
An organic light-emitting device comprising:
- a first electrode;
- a second electrode;
- and
- an organic layer disposed between the first electrode and the second electrode,
- wherein the organic layer comprises an emission layer, and further comprises at least one organometallic compound represented by Formula 1:
- M(L1)n1(L2)n2 Formula 1
- wherein in Formula 1,
- M is Ir;
- L1 is selected from ligands represented by Formulae 2A, 2C, and 2D;
- L2 is selected from ligands represented by Formulae 3-1 and 3-2, and is different from L1;
- n1 is 1, 2, or 3;
- n2 is 0, 1, or 2;
- when n1 is two or more, ligands L1 are identical or different, and when n2 is two or more, L2 are identical or different;
- wherein in Formulae 2A, 2C, and 2D,
- R1 to R4 are each hydrogen,
- R5 to R7 are each independently selected from an isobutyl group and a phenyl group;
- and
- *and*′ each indicates a binding site to M in Formula 1;
- wherein in Formulae 3-1 and 3-2,
- Z1 is hydrogen, Z2 is —F,
- a4 is 4;
- b4 is 2;
- b3 is 2;
- and
- *and*1 each indicates a binding site to M in Formula 1.
22 more elements
An organic light-emitting device comprising:
- a first electrode;
- a second electrode;
- and
- an organic layer disposed between the first electrode and the second electrode wherein
- the organometallic compound is one of Compounds 1 to 7:
2 more elements
Dependencies are inferred from the claim text.