Compound and organic light emitting device comprising the same

Patent metadata

Field	Value
Publication number	US-12538701-B2
Application number	US-202117788544-A
Country	US
Kind code	B2
Filing date	Feb 17, 2021
Priority date	Mar 3, 2020
Publication date	Jan 27, 2026
Grant date	Jan 27, 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 A, L 1 to L 3 , Ar 1 to Ar 3 , R 1 to R 3 , a and b are described herein.

First claim

The invention claimed is:

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

wherein in Chemical Formula 1,
A is a benzene ring fused with two adjacent pentagonal rings,
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 among 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 b are each independently an integer of 0 to 5, and
c is an integer of 0 to 2.

2 . The compound of claim 1 ,
wherein the compound is represented by any one of the following Chemical Formulas 1-1 to 1-5:

wherein in Chemical Formulas 1-1 to 1-5,
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 1 to L 3 are each independently a single bond, phenylene, biphenyldiyl, naphthylene, or 9,9-di(C 1-10 alkyl) fluorenylene.

4 . 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, a C 1-10 alkyl, a C 6-20 aryl, a Si(C 1-10 alkyl) 3 and a Si(C 6-20 aryl) 3 ; or a C 2-20 heteroaryl containing 1 or 2 heteroatoms selected from N, O or S, unsubstituted or substituted with one or more substituents selected from the group consisting of deuterium, a C 1-10 alkyl, a C 6-20 aryl, a Si(C 1-10 alkyl) 3 and a Si(C 6-20 aryl) 3 .

5 . The compound of claim 4 ,
wherein each Ar 1 is independently any one selected from the group consisting of:

wherein,
Z 1 and Z 2 are each independently methyl, ethyl, n-propyl, n-butyl, n-pentyl, n-hexyl, or phenyl.

6 . The compound of claim 4 ,
wherein Ar 2 and Ar 3 are each independently any one selected from the group consisting of:

wherein,
Z 3 and Z 4 are each independently methyl, ethyl, n-propyl, n-butyl, n-pentyl, n-hexyl, or phenyl.

7 . The compound of claim 1 ,
wherein one of Ar 2 or Ar 3 is phenyl, phenyl substituted with a C 1-10 alkyl, naphthyl, or benzofuranyl.

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

9 . The compound of claim 1 ,
wherein L 1 is identical to each other, L 2 is identical to each other, L 3 is identical to each other, Ar 1 is identical to each other, Ar 2 is identical to each other, and Ar 3 is identical to each other.

10 . The compound of claim 1 ,
wherein the compound is represented by any one of the following Chemical Formulas 1-1-1 to 1-5-1:

wherein in Chemical Formulas 1-1-1 to 1-5-1,
each L 1 is independently a single bond, or any one selected from the group consisting of:

L 2 and L 3 are each independently, a single bond, or any one selected from the group consisting of:

Ar 1 to Ar 3 are as defined in claim 1 .

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

12 . 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
• Park Jung Ha
• Kim Yongwook
• Kim Shin Sung
• Baek Leehyeon
• Lee Keunsoo

Classifications

• H10K85/6574

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

• H10K50/11

  characterised by the electroluminescent [EL] layers · CPC title

• C09K2211/1018

  Heterocyclic compounds · CPC title