Organometallic compound and organic light-emitting device including the same

Patent metadata

Field	Value
Publication number	US-12232409-B2
Application number	US-201916395131-A
Country	US
Kind code	B2
Filing date	Apr 25, 2019
Priority date	Apr 27, 2018
Publication date	Feb 18, 2025
Grant date	Feb 18, 2025

Abstract

Provided are an organometallic compound represented by Formula 1 and an organic light-emitting device including the same. The organic light-emitting device includes: a first electrode; a second electrode; and an organic layer comprising an emission layer between the first electrode and the second electrode, the organic layer including the organometallic compound represented by Formula 1.

First claim

What is claimed is:

1. An organic light-emitting device comprising:
a first electrode;
a second electrode; and
an organic layer comprising an emission layer between the first electrode and the second electrode;
the organic layer comprising an organometallic compound selected from Compounds 1, 2, 4, 6, 7, 9, 11, 12, 14, 16, 17, 19, 21, 22, 24, 26, 27, and 29:

2. The organic light-emitting device of claim 1 , wherein:
the first electrode is an anode,
the second electrode is a cathode, and
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 at least one selected from a hole injection layer, a hole transport layer, a buffer layer, an emission auxiliary layer, and an electron blocking layer, and
the electron transport region comprises at least one selected from a hole blocking layer, an electron transport layer, and an electron injection layer.

3. The organic light-emitting device of claim 2 , wherein:
the emission layer comprises the organometallic compound.

4. The organic light-emitting device of claim 1 , wherein:
the emission layer emits blue light having a maximum emission wavelength of about 440 nm to about 490 nm.

5. The organic light-emitting device of claim 3 , wherein:
the emission layer further comprises a host, and
the host comprises a silyl-containing compound, a phosphine oxide-containing compound, or a combination thereof.

6. The organic light-emitting device of claim 2 , wherein:
the hole transport region comprises a p-dopant having a lowest unoccupied molecular orbital (LUMO) energy level of less than-3.5 eV.

7. The organic light-emitting device of claim 2 , wherein:
the electron transport region comprises the hole blocking layer,
the hole blocking layer directly contacts the emission layer, and
the hole blocking layer comprises a phosphine oxide-containing compound or a silyl-containing compound.

8. An organometallic compound, wherein:
the organometallic compound is selected from Compounds 1, 2, 4, 6, 7, 9, 11, 12, 14, 16, 17, 19, 21, 22, 24, 26, 27, and 29:

Assignees

• Samsung Display Co Ltd

Inventors

• HAN Junghoon
• Ko Soobyung
• Kim Sungbum
• Park Junha
• Sim Munki
• Ahn Heechoon
• Lee Hyoyoung
• Jeon Mina
• Jun Mieun
• Kim Youngkook
• Hwang Seokhwan

Classifications

• H10K2101/40

  Interrelation of parameters between multiple constituent active layers or sublayers, e.g. HOMO values in adjacent layers · CPC title

• H10K85/6572

  comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole · CPC title

• H10K85/633

  comprising polycyclic condensed aromatic hydrocarbons as substituents on the nitrogen atom · CPC title

• H10K50/11

  characterised by the electroluminescent [EL] layers · CPC title

• C07F15/0086 Primary

  Platinum compounds · CPC title