IP Library › Granted Patent US 12,492,218
Granted Patent B2
US 12,492,218 · App. 17/199,644 · Granted Dec 9, 2025

Organometallic compound, organic light-emitting device including the same, and electronic apparatus including the organic light-emitting device

Inventors: Bumwoo Park (Yongin-si, KR); Ohyun Kwon (Seoul, KR); Virendra Kumar RAI (Hwaseong-si, KR); Hyungjun Kim (Suwon-si, KR); Myungsun Sim (Suwon-si, KR); Byoungki Choi (Hwaseong-si, KR); Yasushi Koishikawa (Hwaseong-si, KR)
Assignee: SAMSUNG ELECTRONICS CO., LTD.
C07F15/0033H10K85/342H10K50/15H10K50/16H10K50/171
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Quick Facts
Patent No.
US 12,492,218
App. No.
17/199,644
Granted
Dec 9, 2025
Kind
B2
Abstract

An organometallic compound represented by Formula 1: M 1 (Ln 1 ) n1 (L n2 ) 3-n1   Formula 1 wherein M 1 is a first-row transition metal of the Periodic Table of Elements, a second-row transition metal of the Periodic Table of Elements, or a third-row transition metal of the Periodic Table of Elements, Ln 1 is a bidentate ligand, n1 is 0, 1, or 2, and Ln 2 is a ligand represented by Formula 1A: wherein A 1 , A 2 , Y 1 , Y 2 , R 1 to R 3 , R 10 , R 20 , b10, and b20 are as provided herein, and * and *′ each indicate a binding site to a neighboring atom.

Claims (19)

1 . A compound represented by one of Compounds 1 to 36:

2 . An organic light-emitting device comprising:

a first electrode;

a second electrode, and

an organic layer arranged between the first electrode and the second electrode and comprising an emission layer, wherein

wherein the organic layer comprises at least one organometallic compound of claim 1 .

3 . The organic light-emitting device of claim 2 , wherein

the emission layer comprises the at least one organometallic compound.

4 . The organic light-emitting device of claim 3 , wherein

the emission layer further comprises a host, and an amount of the host is greater than an amount of the at least one organometallic compound in the emission layer.

5 . The organic light-emitting device of claim 4 , wherein

the emission layer emits green light having a maximum emission wavelength of about 500 nanometers to about 600 nanometers.

6 . The organic light-emitting device of claim 2 , wherein

the first electrode is an anode,

the second electrode is a cathode,

the organic layer further comprises a hole transport region between the first electrode and the emission layer and an electron transport region between the emission layer and the second electrode,

the hole transport region comprises a hole injection layer, a hole transport layer, an electron blocking layer, a buffer layer, or a combination thereof, and

the electron transport region comprises a hole blocking layer, an electron transport layer, an electron injection layer, or a combination thereof.

7 . An electronic apparatus comprising the organic light-emitting device of claim 2 .

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 24, 2025
From: SAMSUNG ELECTRONICS CO., LTD.
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 072945/0453 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 12, 2021
From: PARK, BUMWOO; KWON, OHYUN; RAI, VIRENDRA KUMAR; KIM, HYUNGJUN; SIM, MYUNGSUN; CHOI, BYOUNGKI; KOISHIKAWA, YASUSHI
To: SAMSUNG ELECTRONICS CO., LTD.
Reel/Frame 055573/0910 →
Priority Claims (1)
KR 10-2020-0122432 · Sep 22, 2020 · national
Continuity (1)
Related Publication 20220089624A1 · Mar 24, 2022
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