Polycyclic compound and organic light emitting diode comprising same

Patent metadata

Field	Value
Publication number	US-12209083-B2
Application number	US-201917054687-A
Country	US
Kind code	B2
Filing date	Jul 4, 2019
Priority date	Jul 5, 2018
Publication date	Jan 28, 2025
Grant date	Jan 28, 2025

Abstract

The present specification provides a compound represented by Formula 1 and an organic light emitting device including the same. The compound is used for an organic material layer of the organic light emitting device.

First claim

What is claimed is:

1. An organic light emitting device comprising:
a first electrode;
a second electrode provided to face the first electrode; and
an organic material layer having one or more layers provided between the first electrode and the second electrode,
wherein the organic material layer comprises a light emitting layer, and the light emitting layer comprises a combination including a compound represented by Formula 1 and a dopant, wherein the dopant is a green light emitting material:

wherein in Formula 1:
at least two of X1 to X3 are N, and any remaining is CR;
R is hydrogen, deuterium, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group;
Ar1 and Ar2 are each independently a substituted or unsubstituted aryl group or a substituted or unsubstituted heterocyclic group;
Y is O or S;
L is a phenylene group;
a is 1 or 2; and
Ls in the parenthesis are the same as or different from each other when a is 2.

2. The organic light emitting device of claim 1 , wherein Ar1 and Ar2 are each independently a substituted or unsubstituted phenyl group; a substituted or unsubstituted biphenyl group; a substituted or unsubstituted terphenyl group; a substituted or unsubstituted naphthyl group; a substituted or unsubstituted anthracenyl group; a substituted or unsubstituted phenanthrenyl group; a substituted or unsubstituted pyrenyl group; a substituted or unsubstituted perylenyl group; a substituted or unsubstituted triphenylene group; a substituted or unsubstituted chrysenyl group; a substituted or unsubstituted fluorenyl group; a substituted or unsubstituted dibenzothiophene group; or a substituted or unsubstituted dibenzofuran group.

3. The organic light emitting device of claim 1 , wherein the compound of Formula 1 is any one of the following compounds:

4. An organic light emitting device, comprising:
a first electrode;
a second electrode provided to face the first electrode; and
an organic material layer having one or more layers provided between the first electrode and the second electrode,
wherein one of the one or more layers of the organic material layer is a light emitting layer comprising a combination including a compound of Formula 1, a fluorescent host or a phosphorescent host, and an iridium (Ir)-based dopant:

wherein in Formula 1:
at least two of X1 to X3 are N, and any remaining is CR;
R is hydrogen, deuterium, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group;
Ar1 and Ar2 are each independently a substituted or unsubstituted aryl group or a substituted or unsubstituted heterocyclic group;
Y is O or S;
L is a substituted or unsubstituted arylene group;
a is 1 or 2; and
Ls in the parenthesis are the same as or different from each other when a is 2.

5. The organic light emitting device of claim 4 , wherein the compound of Formula 1 is any one of the following compounds:

6. The organic light emitting device of clai

Assignees

• Lg Chemical Ltd

Inventors

• Jung Min Woo
• Lee Dong Hoon
• Jang Boonjae
• Lee Jungha
• Han Su Jin
• Park Seulchan
• Hwang Sunghyun

Classifications

• H10K50/171

  Electron injection layers · CPC title

• H10K50/16

  Electron transporting layers · CPC title

• H10K85/6572

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

• H10K85/656

  comprising two or more different heteroatoms per ring (H10K85/652 takes precedence) · CPC title

• C07D413/14 Primary

  containing three or more hetero rings · CPC title