Compound and organic light emitting device comprising the same

Patent metadata

Field	Value
Publication number	US-12137608-B2
Application number	US-201917261795-A
Country	US
Kind code	B2
Filing date	Nov 11, 2019
Priority date	Nov 13, 2018
Publication date	Nov 5, 2024
Grant date	Nov 5, 2024

Abstract

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

First claim

What is claimed is:

1. A compound represented by the following Chemical Formula 1:

wherein in Chemical Formula 1,
Q is naphthalene,
R a and R b are each hydrogen, or are bonded to each other to form Y,
where Y is single bond, O, or S,
one of HAr 1 to HAr 4 is the following Chemical Formula 2, one of the others is the following Chemical Formula 3, and the rest are each independently Chemical Formula 2 or 3,

wherein, in Chemical Formula 2 and 3,
L 1 and L 2 are each independently a single bond; or a substituted or unsubstituted C 6-60 arylene,
X 1 to X 3 are each independently N or CR, and at least two of X 1 to X 3 are N,
Ar 1 and Ar 2 are each independently a C 6-60 aryl unsubstituted, or substituted with pyridinyl,
R is hydrogen or deuterium,
n1 to n4 are each an integer of 0 to 2,
n1+n2+n3+n4 is an integer of 2 to 8,
provided that when R a and R b are each hydrogen, one of HAr 1 to HAr 4 is Chemical Formula 2, and the rest are Chemical Formula 3, and
provided that when R a and R b are bonded to each other to form O or S, and when n1 to n4 are each 0 or 1 and n1+n2+n3+n4 is 2, HAr 1 to HAr 3 are each independently Chemical Formula 2 or 3, and at least one of HAr 1 to HAr 3 is Chemical Formula 2, and HAr 4 is Chemical Formula 3.

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

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

4. The compound according to claim 1 ,
wherein Ar 1 and Ar 2 are each independently phenyl or pyridinylphenyl.

5. The compound according to claim 1 ,
wherein the compound is represented by the following Chemical Formula 1-1:

wherein, in Chemical Formula 1-1,
Q is naphthalene,
one of HAr 1 and HAr 2 is Chemical Formula 2, and the rest is Chemical Formula 3,
HAr 3 and HAr 4 are each independently Chemical Formula 3,
n1 to n4 are each 0 or 1, and
n1+n2+n3+n4 is 2.

6. The compound according to claim 1 ,
wherein the compound is represented by the following Chemical Formula 1-2A:

wherein, in Chemical Formula 1-2A,
Q is naphthalene,
HAr 1 to HAr 3 are each independently Chemical Formula 2 or 3, and at least one of HAr 1 to HAr 3 is Chemical Formula 2,
HAr 4 is Chemical Formula 3,
n1 to n4 are each 0 or 1, and
n1+n2+n3+n4 is 2.

7. The compound according to claim 1 ,
wherein the compound is represented by Chemical Formula 1-2B:

wherein, in Chemical Formula 1-2B,
Q is naphthalene,
Y′ is single bond, or S,
n1 to n4 are each 0 or 1,
n1+n2+n3+n4 is 2, and
HAr 1 to HAr 4 are as defined in claim 1 .

8. The compound according to claim 1 ,
wherein n1 and n3 are 1, and n2 and n4 are 0;
n1 and n4 are 1, and n2 and n3 are 0; or
n2 and n3 are 1, and n1 and n4 are 0.

9. The compound according to claim 1 ,
wherein the compound represented by Chemical Formula 1 is represented by any one of the following Chemical Formulae 4-1 to 4-7:

wherein, in Chemical Formulae 4-1 to 4-7,
R a , R b , L 1 , L 2 , X 1 to X 3 , Ar 1 , and Ar 2 are as defined in claim 1 , and
provided that when R a and R b are bonded to each other to form O or S, the compound is represented by one of Chemical Formulae 4-2 to 4-6.

10. The compound according to claim 1 ,
wherein one of HAr 1 to HAr 4 is Chemical Formula 2, two of the others are Chemical Formula 3,
n1 to n4 are each 0, 1, or 2, and
n1+n2+n3+n4 is 3.

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

12. The compound according to claim 1 ,
wherein the compound represented by Chemical Formula 1 is represented by any one of the following Chemical Formulae 5-1 to 5-7:

wherein, in Chemical Formulae 5-1 to 5-7,
R a , R b , L 1 , L 2 , X 1 to X 3 , Ar 1 , and Ar 2 are as defined in claim 1 .

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

Assignees

• Lg Chemical Ltd

Inventors

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

Classifications

• H10K50/16

  Electron transporting layers · CPC title

• H10K85/6576

  comprising only sulfur in the heteroaromatic polycondensed ring system, e.g. benzothiophene · CPC title

• H10K85/6574

  comprising only oxygen in the heteroaromatic polycondensed ring system, e.g. cumarine dyes · CPC title

• C07D409/10

  linked by a carbon chain containing aromatic rings · CPC title

• C07D405/10

  linked by a carbon chain containing aromatic rings · CPC title