Compound and organic light emitting device comprising the same

Patent metadata

Field	Value
Publication number	US-12557545-B2
Application number	US-202117800086-A
Country	US
Kind code	B2
Filing date	Feb 17, 2021
Priority date	Mar 3, 2020
Publication date	Feb 17, 2026
Grant date	Feb 17, 2026

Abstract

The present disclosure provides a novel compound represented by the following Chemical Formula 1 and an organic light emitting device including the same:wherein L, L′, L1 to L3, Ar1 to Ar3, R1 to R3, n, and a to c are described herein.

First claim

The invention claimed is:

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

wherein in Chemical Formula 1,
L is a single bond; O; S; N(Z 1 ); C(Z 2 )(Z 3 ); a substituted or unsubstituted C 6-60 arylene; or a substituted or unsubstituted C 2-60 heteroarylene containing at least one heteroatom selected from N, O or S;
L′ is a single bond; or N(Z 4 );
n is 0 or 1,
wherein Z 1 to Z 4 are each independently hydrogen; deuterium; a substituted or unsubstituted C 1-60 alkyl; a substituted or unsubstituted C 6-60 aryl; or a substituted or unsubstituted C 2-60 heteroaryl containing at least one heteroatom selected from N, O or S,
L 1 to L 3 are each independently a single bond; a substituted or unsubstituted C 6-60 arylene; or a substituted or unsubstituted C 2-60 heteroarylene containing at least one heteroatom selected from N, O or S,
Ar 1 to Ar 3 are each independently a substituted or unsubstituted C 6-60 aryl; or a substituted or unsubstituted C 2-60 heteroaryl containing at least one heteroatom selected from N, O or S,
R 1 to R 3 are each independently deuterium; halogen; cyano; a substituted or unsubstituted C 1-60 alkyl; a substituted or unsubstituted C 6-60 aryl; or a substituted or unsubstituted C 2-60 heteroaryl containing at least one heteroatom selected from N, O or S,
a and c are each independently an integer of 0 to 3,
b is an integer of 0 to 4.

2 . The compound of claim 1 ,
wherein the compound is represented by any one of the following Chemical Formulas 1-1 to 1-4:

wherein in Chemical Formulas 1-1 to 1-4,
L, L′, n, L 1 to L 3 , Ar 1 to Ar 3 , R 1 to R 3 , a, b and c are as defined in claim 1 .

3 . The compound of claim 1 ,
wherein L is a single bond; O; or N(Z 1 ), n is 0; or L is a C 6-20 arylene, and n is 0, or 1.

4 . The compound of claim 1 ,
wherein Z 1 to Z 4 are each independently phenyl which is unsubstituted or substituted with one or more substituents selected from the group consisting of a C 1-10 alkyl, benzofuranyl and benzothiophenyl; naphthyl which is unsubstituted or substituted with one or more substituents selected from the group consisting of a C 1-10 alkyl, benzofuranyl and benzothiophenyl; or dibenzofuranyl which is unsubstituted or substituted with one or more substituents selected from the group consisting of a C 1-10 alkyl, benzofuranyl and benzothiophenyl.

5 . The compound of claim 1 ,
wherein L is a single bond, or any one selected from the group consisting of:

6 . The compound of claim 1 ,
wherein the -(L′) n - is a single bond,

7 . The compound of claim 1 ,
wherein L 1 to L 3 are each independently a single bond, phenylene, or naphthylene.

8 . The compound of claim 1 ,
wherein Ar 1 to Ar 3 are each independently a C 6-20 aryl which is unsubstituted or substituted with one or more substituents selected from the group consisting of deuterium, methyl, tert-butyl, phenyl and a Si(phenyl) 3 ; or a C 2-20 heteroaryl containing one heteroatom of N, O or S which is unsubstituted or substituted with one or more substituents selected from the group consisting of deuterium, methyl, tert-butyl, phenyl and Si(phenyl) 3 .

9 . The compound of claim 8 ,
wherein Ar 1 and Ar 2 are each independently

wherein R is methyl, or tert-butyl.

10 . The compound of claim 8 ,
wherein Ar 3 is any one selected from the group consisting of:

wherein R′ is methyl, or tert-butyl.

11 . The compound of claim 1 ,
wherein R 1 to R 3 are each deuterium.

12 . The compound of claim 1 ,
wherein structure in each bracket ([ ]) is identical to each other.

13 . The compound of claim 1 ,
wherein the compound is represented by any one of the following Chemical Formulas 1-1-1 to 1-4-1:

wherein in Chemical Formulas 1-1-1 to 1-4-1,
L is a single bond; O; N(Z 1 ); or a C 6-20 arylene, and
Z 1 , L 1 to L 3 and Ar 1 to Ar 3 are as defined in claim 1 .

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

15 . An organic light emitting device comprising: a first electrode; a second electrode that is provided opposite to the first electrode; and a light emitting layer that is provided between the first electrode and the second electrode, wherein the light emitting layer includes the compound of claim 1 .

Assignees

• Lg Chemical Ltd

Inventors

• Lim Byeong Yun
• Lee Jaechol
• Choi Doowhan
• Kim Yongwook
• Kim Young Kwang
• Seo Minseob
• Yoo Seung Jun

Classifications

• C09K2211/1018

  Heterocyclic compounds · CPC title

• C09K11/06

  containing organic luminescent materials · CPC title

• C07D487/04 Primary

  Ortho-condensed systems · CPC title

• H10K85/6572

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

• H10K85/626

  containing more than one polycyclic condensed aromatic rings, e.g. bis-anthracene · CPC title