Compound and organic light emitting device comprising the same

Patent metadata

Field	Value
Publication number	US-12098156-B2
Application number	US-201917278406-A
Country	US
Kind code	B2
Filing date	Nov 15, 2019
Priority date	Nov 27, 2018
Publication date	Sep 24, 2024
Grant date	Sep 24, 2024

Abstract

Provided is a compound of Chemical Formula 1:

wherein:
X 1 to X 6 are each independently CH or N, provided that at least one of X 1 to X 6 is N;
Ar 1 to Ar 4 are each independently a substituted or unsubstituted: C 6-60 aryl or C 2-60 heteroaryl containing one or more of N, O, and S, provided that at least one of Ar 1 to Ar 4 is any one of:

R 2 is hydrogen, deuterium, or a substituted or unsubstituted: C 6-60 aryl or C 2-60 heteroaryl containing one or more of N, O and S; each R 3 is independently hydrogen, deuterium, or a substituted or unsubstituted: C 6-60 aryl or C 2-60 heteroaryl containing one or more of N, O, and S;
each R 1 is independently hydrogen, deuterium, or a substituted or unsubstituted: C 6-60 aryl or C 2-60 heteroaryl containing one or more of N, O and S; and n is an integer of 0 to 8, and organic light emitting devices including the same.

First claim

The invention claimed is:

1. A compound of Chemical Formula 1:

wherein, in Chemical Formula 1:
X 1 to X 6 are each independently CH or N, with the proviso that at least one of X 1 to X 6 is N;
Ar 1 to Ar 4 are each independently a substituted or unsubstituted C 6-60 aryl or a substituted or unsubstituted C 2-60 heteroaryl containing any one or more heteroatoms selected from the group consisting of N, O, and S, with the proviso that at least one of Ar 1 to Ar 4 is any one substituent selected from the group consisting of the following substituents:

wherein:
R 2 is hydrogen, deuterium, a substituted or unsubstituted C 6-60 aryl, or a substituted or unsubstituted C 2-60 heteroaryl containing any one or more selected from the group consisting of N, O and S;
each R 3 is independently hydrogen, deuterium, a substituted or unsubstituted C 6-60 aryl, or a substituted or unsubstituted C 2-60 heteroaryl containing any one or more selected from the group consisting of N, O and S;
a is an integer of 0 to 8;
each R 1 is independently hydrogen, deuterium, a substituted or unsubstituted C 6-60 aryl, or a substituted or unsubstituted C 2-60 heteroaryl containing any one or more selected from the group consisting of N, O and S; and
n is an integer of 0 to 8.

2. The compound of claim 1 , wherein X 1 to X 6 are each independently CH or N, with the proviso that at least one of X 1 to X 3 is N and at least one of X 4 to X 6 is N.

3. The compound of claim 1 , wherein R 2 and R 3 are each independently hydrogen, deuterium, phenyl, or phenyl substituted with 5 deuteriums.

4. The compound of claim 1 , wherein:
Ar 1 to Ar 4 are each independently a phenyl, biphenylyl, naphthyl, phenanthrenyl, triphenylenyl, dibenzofuranyl, dibenzothiophenyl, dimethylfluorenyl, carbazolyl, phenyl carbazolyl, phenyl substituted with five deuteriums, carbazolyl substituted with phenyl substituted with 5 deuteriums, or

 with the proviso that at least one of Ar 1 to Ar 4 is any one substituent selected from the group consisting of the following substituents:

5. The compound of claim 1 , wherein R 1 is hydrogen, phenyl or phenyl substituted with 1 to 5 deuteriums.

6. The compound of claim 1 , wherein n is 0 or 1.

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

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

Assignees

• Lg Chemical Ltd

Inventors

• Jung Min Woo
• Lee Dong Hoon
• Jang Boon Jae
• Hong Wanpyo
• Suh Sang Duk
• Lee Jungha
• Han Su Jin
• Park Seulchan
• Hwang Sunghyun

Classifications

• H10K2101/90

  Multiple hosts in the emissive layer · CPC title

• H10K2101/40

  Interrelation of parameters between multiple constituent active layers or sublayers, e.g. HOMO values in adjacent layers · CPC title

• H10K2101/10

  Triplet emission · CPC title

• H10K50/11

  characterised by the electroluminescent [EL] layers · CPC title

• H10K85/6576

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