IP Library Granted Patent US 12,484,436
Granted Patent B2
US 12,484,436 · App. 17/495,350 · Granted Nov 25, 2025

Organic metal compound, organic light emitting diode and organic light emitting device having the compound

Inventors: Hee-Jun Park (Paju-si, KR); Ku-Sun Choung (Paju-si, KR); Yoo-Jeong Jeong (Paju-si, KR); Sung-Jin Park (Paju-si, KR); Jae-Min Moon (Paju-si, KR); Hee-Ryong Kang (Hwaseong-si, KR); Kyoung-Jin Park (Hwaseong-si, KR); Hyun Kim (Hwaseong-si, KR); Ga-Won Lee (Hwaseong-si, KR); Seung-hyun Yoon (Hwaseong-si, KR)
Assignees: LG Display Co., Ltd.; Dupont Specialty Materials Korea Ltd.
H10K85/342C07F15/0033C09K11/06C09K2211/1033C09K2211/1037C09K2211/185H10K50/11H10K50/19H10K2101/10
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Quick Facts
Patent No.
US 12,484,436
App. No.
17/495,350
Granted
Nov 25, 2025
Kind
B2
Abstract

The present disclosure relates to an organic metal compound, an organic light emitting diode and an organic light emitting device having the compound, in particular, to an organic metal compound having the following structure of Formula 1, an organic light emitting diode (OLED) and an organic light emitting device that includes the organic metal compound. The OLED and the organic light emitting device including the organic metal compound can improve their luminous efficiency, luminous color purity and lifespan. Ir(L A ) m (L B ) n   [Formula 1]

Claims (12)

1 . An organic metal compound selected from the following compounds:

2 . An organic light emitting diode comprising:

a first electrode;

a second electrode facing the first electrode; and

an emissive layer disposed between the first and second electrodes and including at least one emitting material layer, wherein the at least one emitting material layer includes the organic metal compound of claim 1 .

3 . The organic light emitting diode of claim 2 , wherein the at least one emitting material layer includes a host and a dopant, and wherein the dopant includes the organic metal compound.

4 . The organic light emitting diode of claim 2 , wherein the emissive layer includes a first emitting part disposed between the first and second electrodes and including a first emitting material layer, a second emitting part disposed between the first emitting part and the second electrode and including a second emitting material layer and a first charge generation layer disposed between the first and second emitting parts, and wherein at least one of the first emitting material layer and the second emitting material layer includes the organic metal compound.

5 . The organic light emitting diode of claim 4 , wherein the second emitting material layer includes a lower emitting material layer disposed between the first charge generation layer and the second electrode and an upper emitting material layer disposed between the lower emitting material layer and the second electrode, and wherein one of the lower emitting material layer and the upper emitting material layer includes the organic metal compound.

6 . The organic light emitting diode of claim 4 , wherein the emissive layer further includes a third emitting part disposed between the second emitting part and the second electrode and including a third emitting material layer and a second charge generation layer disposed between the second and third emitting parts.

7 . An organic light emitting device comprising:

a substrate; and

an organic light emitting diode of claim 2 over the substrate.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 9, 2026
From: DUPONT SPECIALTY MATERIALS KOREA LTD.
To: LG DISPLAY CO., LTD.
Reel/Frame 073425/0153 →
CHANGE OF NAME Recorded Oct 17, 2024
From: ROHM & HAAS ELECTRONIC MATERIALS KOREA LTD
To: DUPONT SPECIALTY MATERIALS KOREA LTD
Reel/Frame 069185/0438 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 6, 2021
From: PARK, HEE-JUN; CHOUNG, KU-SUN; JEONG, YOO-JEONG; PARK, SUNG-JIN; MOON, JAE-MIN; KANG, HEE-RYONG; PARK, KYOUNG-JIN; KIM, HYUN; LEE, GA-WON; YOON, SEUNG-HYUN
To: LG DISPLAY CO., LTD.; ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.
Reel/Frame 057726/0275 →