Compound and organic light emitting device comprising the same

Patent metadata

Field	Value
Publication number	US-12559501-B2
Application number	US-202117801887-A
Country	US
Kind code	B2
Filing date	Jul 19, 2021
Priority date	Aug 25, 2020
Publication date	Feb 24, 2026
Grant date	Feb 24, 2026

Abstract

The present disclosure provides a novel compound of Chemical Formula 1 and an organic light emitting device including the same:

X 1 , X 2 , A4, A5, Ar 1 , Ar 2 , and R 1 to R 4 are described herein.

First claim

The invention claimed is:

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

in Chemical Formula 1,
X 1 and X 2 are each independently O, S, Se, or Te;
A1 to A3 are each independently a substituted or unsubstituted C 6-60 aromatic ring fused with two adjacent rings,
A4 and A5 are each independently a substituted or unsubstituted C 6-60 aromatic ring fused with one adjacent ring,
Ar 1 and Ar 2 are each independently a substituted or unsubstituted C 6-60 aryl; or a substituted or unsubstituted C 2-60 heteroaryl containing at least one selected from the group consisting of Si N, O and S, and
R 1 to R 4 are each independently hydrogen; deuterium; halogen; 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 at least one selected from the group consisting of N, O and S.

2 . The compound of claim 1 , wherein:
the Chemical Formula 1 is represented by any one of the following Chemical Formulas 1-1 to 1-17:

in Chemical Formula 1-1 to Chemical Formula 1-17,
X 1 , X 2 , A4, A5, Ar 1 , Ar 2 , and R 1 to R 4 are as defined in claim 1 .

3 . The compound of claim 1 , wherein:
the Chemical Formula 1 is represented by any one of the following Chemical Formulas 1-A to 1-F:

in Chemical Formula 1-A to Chemical Formula 1-F,
X 1 , X 2 , A1 to A3, Ar 1 , Ar 2 , and R 1 to R 4 are as defined in claim 1 .

4 . The compound of claim 1 , wherein:
the Chemical Formula 1 is represented by Chemical Formula 1-A-1, Chemical Formula 1-A-2, or Chemical Formula 1-B-1:

in Chemical Formula 1-A-1, Chemical Formula 1-A-2 and Chemical Formula 1-B-1, A1 is a benzene ring or a naphthalene ring fused with two adjacent rings, and
X 1 , X 2 , Ar 1 , Ar 2 , and R 1 to R 4 are as defined in claim 1 .

5 . The compound of claim 1 , wherein:
X 1 and X 2 are each independently O, S, or Se.

6 . The compound of claim 1 , wherein:
A1 to A3 are each independently a benzene ring or a naphthalene ring fused with two adjacent rings, and A4 and A5 are each independently a benzene ring or a naphthalene ring fused with one adjacent ring.

7 . The compound of claim 1 , wherein:
A2 and A3 are identical to each other, and A4 and A5 are identical to each other.

8 . The compound of claim 1 , wherein:
Ar 1 and Ar 2 are each independently phenyl, biphenylyl, naphthyl, dimethylfluorenyl, dimethyl dibenzosilolyl, dimethyl benzofluorenyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, or pyridinyl, and the Ar 1 and Ar 2 are each independently unsubstituted; or substituted with any one or more substituent groups selected from the group consisting of butyl, tert-butyl, trimethylsilyl and triphenylsilyl.

9 . The compound of claim 1 , wherein:
Ar 1 and Ar 2 are identical to each other.

10 . The compound of claim 1 , wherein:
R 1 to R 4 are each independently hydrogen, deuterium, methyl, or hexyl.

11 . The compound of claim 1 , wherein:
A2 and A3 are identical to each other, A4 and A5 are identical to each other, Ar 1 and Ar 2 are identical to each other, R 1 and R 3 are identical to each other, and R 2 and R 4 are identical to each other.

12 . The compound of claim 1 , wherein:
the compound represented by Chemical Formula 1 is any one selected from the group consisting of:

13 . An organic light emitting device comprising: a first electrode; a second electrode that is provided opposite to the first electrode; and one or more organic material layers that are provided between the first electrode and the second electrode, wherein the one or more organic material layers include a layer comprising the compound of claim 1 .

14 . The organic light emitting device of claim 13 , wherein:
the layer comprising the compound is a light emitting layer.

Assignees

• Lg Chemical Ltd

Inventors

• Kim Shin Sung
• Lee Jaechol
• Kim Yongwook
• Kim Young Kwang
• Lim Byeong Yun
• Cho Beomshin
• Choi Hyunju

Classifications

• C09K2211/1018

  Heterocyclic compounds · CPC title

• C09K11/06

  containing organic luminescent materials · CPC title

• H10K50/11

  characterised by the electroluminescent [EL] layers · CPC title

• H10K85/657

  Polycyclic condensed heteroaromatic hydrocarbons · CPC title

• H10K85/6574

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