Compound and organic light emitting device comprising the same

Patent metadata

Field	Value
Publication number	US-11980090-B2
Application number	US-201917262114-A
Country	US
Kind code	B2
Filing date	Nov 22, 2019
Priority date	Nov 23, 2018
Publication date	May 7, 2024
Grant date	May 7, 2024

Abstract

A novel compound represented by the following Chemical Formula 1, and an organic light emitting device comprising the same.

First claim

The invention claimed is:

1. A compound of Chemical Formula 1:

wherein in Chemical Formula 1:
Q is dibenzofuran, dibenzothiophene, benzofuran, or benzothiophene ring;
R a and R b are each hydrogen, or are combined together to form a single bond;
one of HAr 1 to HAr 4 is one of the following Chemical Formulae 2-1 to 2-3, another one is the following Chemical Formula 3, and the remaining are one of the following Chemical Formulae 2-1 to 2-3 or 3:

wherein in Chemical Formulae 2-1 to 2-3:
X 1 to X 3 are each independently N or CH, and at least two of X 1 to X 3 are N;
Ar 1 to Ar 4 are each independently hydrogen, deuterium, a substituted or unsubstituted C 1-60 alkyl, a substituted or unsubstituted C 3-60 cycloalkyl, 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; and
L 1 is a single bond or an unsubstituted C 6-60 arylene;
L 2   [Chemical Formula 3]

wherein in Chemical Formula 3:
L 2 is a single bond or an unsubstituted C 6-60 arylene;
n1 to n4 are each an integer of 0 to 2, and
n1+n2+n3+n4 is an integer of 2 to 8.

2. The compound of claim 1 ,
wherein X 1 to X 3 are N.

3. The compound of claim 1 ,
wherein Ar 1 and Ar 2 are phenyl,
Ar 3 is ethyl, and
Ar 4 is phenyl.

4. The compound of claim 1 ,
wherein L 1 and L 2 are a single bond or phenylene.

5. The compound of claim 1 ,
wherein the compound is any one of Chemical Formulae 4-1 to 4-4:

wherein in Chemical Formulae 4-1 to 4-4:
Y is O or S;
n1 to n4 are each 0 or 1;
n1+n2+n3+n4 is 2;
one of HAr 1 to HAr 4 is any one of Chemical Formulae 2-1 to 2-3, and the other one is Chemical Formula 3.

6. The compound of claim 1 , wherein n1+n2+n3+n4 is 2 or 3.

7. The compound of claim 1 , wherein:
n1 and n2 are each 1, and n3 and n4 are each 0; or
n1 and n3 are each 1, and n2 and n4 are each 0; or
n1 and n4 are each 1, and n2 and n3 are each 0.

8. The compound of claim 1 ,
wherein the compound is any one of Chemical Formula 5-1 or 5-2:

wherein in Chemical Formulas 5-1 and 5-2:
R a and R b are each hydrogen, or are combined together to form a single bond;
Y is O or S;
HAr 1 is any one of Chemical Formulae 2-1 to 2-3; and
L 2 is a single bond or 1,4-phenylene.

9. The compound of claim 1 ,
wherein the compound is any one of Chemical Formula 5-3 or 5-4:

wherein in Chemical Formulas 5-3 and 5-4;
R a and R b are each hydrogen, or are combined together to form a single bond;
Y is O or S;
L 2 is a single bond or 1,4-phenylene;
n3 and n4 are each 0 or 1;
n3+n4 is 1; and
one of HAr 3 and HAr 4 is any one of Chemical Formulae 2-1 to 2-3.

10. The compound of claim 1 ,
wherein the compound is any one of Chemical Formula 5-5 or 5-6:

wherein in Chemical Formulas 5-5 and 5-6:
R a and R b are each hydrogen, or are combined together to form a single bond;
Y is O or S;
L 2 is a single bond or 1,4-phenylene;
n2 to n4 are each 0 or 1;
n2+n3+n4 is 1; and
one of HAr 2 to HAr 4 is any one of Chemical Formulae 2-1 to 2-3.

11. The compound of claim 1 ,
wherein n1, n2 and n3 are each 1, and n4 is 0; or
n1, n2 and n4 are each 1, and n3 is 0; or
n1, n3 and n4 are each 1, and n2 is 0; or
n2, n3 and n4 are each 1, and n1 is 0; or
n1 is 2, n2 is 1, and n3 and n4 are each 0; or
n1 is 2, n3 is 1, and n2 and n4 are each 0; or
n1 is 2, n4 is 1, and n2 and n3 is each 0.

12. The compound of claim 1 ,
wherein the compound is any one of Chemical Formula 6-1 or 6-2:

wherein in Chemical Formulas 6-1 and 6-2:
R a and R b are each hydrogen, or are combined together to form a single bond;
Y is O or S;
n1, n2 and n4 are each 0, 1, or 2;
n1+n2+n4 is 2;
one of HAr 1 , HAr 2 , and HAr 4 is any one of Chemical Formulae 2-1 to 2-3, and another one is Chemical Formula 3.

13. The compound of claim 1 ,
wherein the compound is any one of Chemical Formula 6-3 or 6-4:

wherein in Chemical Formulas 6-3 and 6-4;
R a and R b are each hydrogen, or are combined together to form a single bond;
Y is O or S;
n1, n3 and n4 are each 0, 1, or 2;
n1+n3+n4 is 2; and
one of HAr 1 , HAr 3 , and HAr 4 is anyone of Chemical Formulae 2-1 to 2-3, and another one is Chemical Formula 3.

14. A compound selected from the group consisting of the following compounds:

Assignees

• Lg Chemical Ltd

Inventors

• Lee Jae Tak
• Hong Sung Kil
• Huh Jungoh
• Heo Dong Uk
• Han Miyeon
• Yang Junghoon

Classifications

• H10K85/654 Primary

  comprising only nitrogen as heteroatom (H10K85/652 takes precedence) · CPC title

• C07D405/04 Primary

  directly linked by a ring-member-to-ring-member bond · CPC title

• C07D405/10 Primary

  linked by a carbon chain containing aromatic rings · CPC title

• C07D409/04

  directly linked by a ring-member-to-ring-member bond · CPC title

• C07D409/10

  linked by a carbon chain containing aromatic rings · CPC title