Compound and organic light emitting device comprising the same

Patent metadata

Field	Value
Publication number	US-12096686-B2
Application number	US-201917054069-A
Country	US
Kind code	B2
Filing date	Aug 22, 2019
Priority date	Aug 22, 2018
Publication date	Sep 17, 2024
Grant date	Sep 17, 2024

Abstract

The present disclosure provides a novel compound represented by the following Chemical Formula 1, and an organic light emitting device including the same. The compound is used as a material of an organic material layer of the organic light emitting device.

First claim

What is claimed is:

1. A compound of Chemical Formula 1:

wherein in Chemical Formula 1:
Y 1 is O or S;
L 1 and L 2 are each independently a single bond, a substituted or unsubstituted C 6-60 arylene, or a substituted or unsubstituted C 2-60 heteroarylene containing one or more heteroatoms selected from the group consisting of O, N, and S,
with the proviso that L 2 is bonded to any one of positions *1, *2, and *3;
A is any one of Chemical Formulas 2 to 4:

wherein in Chemical Formulas 2 to 4:
X 1 to X 3 are each independently N or CH, with the proviso that at least two of X 1 to X 3 are N;
X 4 and X 5 are each independently N or CH, with the proviso that at least one of X 4 and X 5 is N;
X 6 and X 7 are each independently N or CH, with the proviso that at least one of X 6 and X 7 is N;
Y 2 is O or S;
Ar 1 is a substituted or unsubstituted C 6-60 aryl, or a substituted or unsubstituted C 2-60 heteroaryl containing one or more heteroatoms selected from the group consisting of N, O, and S;
Ar 2 is a substituted or unsubstituted C 10-20 aryl, or a substituted or unsubstituted C 2-20 heteroaryl containing one heteroatom selected from the group consisting of N, O or S; and
Ar 3 and Ar 4 are each independently a substituted or unsubstituted Coco aryl, or a substituted or unsubstituted C 2-60 heteroaryl containing one or more heteroatoms selected from the group consisting of N, O, and S.

2. The compound according to claim 1 ,
wherein L 1 and L 2 are each independently a single bond, phenylene, or biphenylylene.

3. The compound according to claim 1 ,
wherein in Chemical Formula 2, X 1 to X 3 are N, X 1 and X 2 are N and X 3 is CH, or X 2 and X 3 are N and X 1 is CH,
wherein in Chemical Formula 3, X 4 and X 5 are N, and
wherein in Chemical Formula 4, X 6 and X 7 are N.

4. The compound according to claim 1 ,
wherein the compound of Chemical Formula 1 is any one of the following Chemical Formulas 1A to 1C:

wherein in Chemical Formula 1A:
Y 1 is O or S;
L 1 and L 2 are each independently a single bond or a C 6-20 arylene; and
A is any one of Chemical Formulas 2 to 4 as defined in Chemical Formula 1;

wherein in Chemical Formula 1B:
Y 1 is O or S;
L 1 and L 2 are each independently a single bond or a C 6-20 arylene; and
A is any one of Chemical Formulas 2 to 4 as defined in Chemical Formula 1;

wherein in Chemical Formula 1C:
Y 1 is O or S;
L 1 and L 2 are each independently a single bond or a C 6-20 arylene;
A is any one of Chemical Formulas 2 to 4 as defined in Chemical Formula 1,
provided that in Chemical Formula 2:
Ar 1 is a C 6-20 aryl or a C 2-20 heteroaryl containing one atom of O or S, and
Ar 2 is a C 10-20 aryl or a C 2-20 heteroaryl containing one atom of O or S.

5. The compound according to claim 4 ,
wherein in Chemical Formula 1A, 1B, and 1C:
Ar 1 , Ar 3 , and Ar 4 are each independently phenyl, biphenylyl, dibenzofuranyl, or dibenzothiophenyl, and
Ar 2 is biphenylyl, dibenzofuranyl, or dibenzothiophenyl.

6. The compound according to claim 1 ,
wherein the compound is any one of the following Chemical Formulas 1D to 1F:

wherein in Chemical Formulas 1D to 1F,
Y 1 , Y 2 , L 1 , L 2 , X 1 to X 7 , and Ar 1 to Ara are the same as defined in claim 1 .

7. The compound according to claim 6 ,
wherein in Chemical Formula 1D, L 2 is bonded to position *1 or *2.

8. The compound according to claim 1 ,
wherein the compound is represented by any one of the following Chemical Formulas 1-1 to 1-6:

wherein in Chemical Formulas 1-1 to 1-4,
X 1 to X 3 are N; or X 1 and X 2 are N, and X 3 is CH; or X 2 and X 3 are N, and X 1 is CH;
Ar 1 is phenyl, biphenylyl, dibenzofuranyl, or dibenzothiophenyl,
Ar 2 is biphenyl, dibenzofuranyl, or dibenzothiophenyl, and
Y 1 , L 1 , and L 2 are as defined in claim 1 ,

wherein in Chemical Formulas 1-5 and 1-6,
X 1 to X 3 are N; or X 1 and X 2 are N, and X 3 is CH; or X 2 and X 3 are N, and X 1 is CH;
Ar 1 is phenyl, biphenylyl, dibenzofuranyl, or dibenzothiophenyl,
Ar 2 is biphenylyl, dibenzofuranyl, or dibenzothiophenyl, and
Y 1 , L 1 , and L 2 are the same as defined in claim 1 .

9. The compound according to claim 1 ,
wherein the compound is any one compound selected from the group consisting of the following compounds:

10. An organic light emitting device comprising: a first electrode; a second electrode provided to face the first electrode; and one or more organic material layers provided between the first electrode and the second electrode, wherein one or more layers of the organic material layers comprise the compound according to claim 1 .

11. The organic light emitting device according to claim 10 ,
wherein the organic material layer comprising the compound is a light emitting layer,
wherein the light emitting layer includes two or more kinds of hosts, and
wherein one of the hosts is the compound.

Assignees

• Lg Chemical Ltd

Inventors

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

Classifications

• C09K2211/1018

  Heterocyclic compounds · CPC title

• C09K11/06

  containing organic luminescent materials · CPC title

• C07D409/14

  containing three or more hetero rings · CPC title

• C07D405/14

  containing three or more hetero rings · CPC title

• C07D405/10

  linked by a carbon chain containing aromatic rings · CPC title