Compound and organic light emitting device comprising the same

Patent metadata

Field	Value
Publication number	US-12453283-B2
Application number	US-201917046647-A
Country	US
Kind code	B2
Filing date	Jul 29, 2019
Priority date	Jul 27, 2018
Publication date	Oct 21, 2025
Grant date	Oct 21, 2025

Abstract

Provided is a novel compound of Chemical Formula 1:wherein: X1 to X3 are each independently CH or N, provided that at least two of X1 to X3 are N, Y1 and Y2 are each independently O or S, L is a single bond; a substituted or unsubstituted C6-60 arylene; a substituted or unsubstituted C2-60 heteroarylene containing one or more selected from the group consisting of N, O, and S, Ar1 is a C6-60 aryl substituted with at least one deuterium, and the other substituent are as defined in the specification; and an organic light emitting device including the same. The compound of Chemical Formula 1 can be used as a material of an organic material layer of an organic light emitting device, and can improve efficiency, achieve a low driving voltage, and/or improve lifetime characteristics in the organic light emitting device.

First claim

The invention claimed is:

1. A compound of the following Chemical Formula 1:

wherein, in Chemical Formula 1,
X 1 to X 3 are each independently CH or N, provided that at least two of X 1 to X 3 are N,
Y 1 and Y 2 are each independently O or S,
L is a single bond,
Ar 1 is a phenyl substituted with at least one deuterium,
each R 1 is independently hydrogen; deuterium; a halogen; cyano; nitro; amino; a substituted or unsubstituted C 1-60 alkyl; a substituted or unsubstituted C 3-60 cycloalkyl; a substituted or unsubstituted C 2-60 alkenyl; 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, or two adjacent groups of R 1 are linked together to form a C 6-60 aromatic ring or a C 2-60 heteroaromatic ring containing one or more heteroatoms selected from the group consisting of N, O, and S, and
n is an integer of 0 to 4.

2. The compound according to claim 1 , wherein Chemical Formula 1 is any one of the following Chemical Formulas 2 to 5:

wherein, in Chemical Formulas 2 to 5,
X 1 to X 3 , Y 1 , Y 2 , L, Ar 1 , R 1 , and n are the same as those defined in claim 1 .

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

4. The compound according to claim 1 , wherein Ar 1 is phenyl substituted with five deuteriums.

5. The compound according to claim 1 , wherein each R 1 is independently hydrogen or phenyl, or two adjacent groups of R 1 are linked together to form

6. The compound according to claim 1 , wherein n is an integer of 0 to 2.

7. The compound according to claim 1 , wherein Chemical Formula 1 is either one of the following Chemical Formula 1-1 or Chemical Formula 1-2:

wherein, in Chemical Formula 1-1 or Chemical Formula 1-2,
X 1 to X 3 , Y 1 , Y 2 , L, Ar 1 , and R 1 are the same as those defined in claim 1 .

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

Assignees

• Lg Chemical Ltd

Inventors

• Jung Min Woo
• Lee Dong Hoon
• Suh Sang Duk
• Park Seulchan
• Hwang Sunghyun
• Jang Boonjae
• Lee Jungha
• Han Su Jin

Classifications

• 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

• 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