Heterocyclic compound and organic light emitting element comprising same

Patent metadata

Field	Value
Publication number	US-10377740-B2
Application number	US-201615556731-A
Country	US
Kind code	B2
Filing date	Sep 13, 2016
Priority date	Sep 15, 2015
Publication date	Aug 13, 2019
Grant date	Aug 13, 2019

Abstract

The present specification provides a heterocyclic compound and an organic light emitting device including the same.

First claim

The invention claimed is:

1. A compound represented by any one of the following Chemical Formula 2 to Chemical Formula 4:

wherein, in Chemical Formula 2 to Chemical Formula 4,
L is a direct bond; a substituted or unsubstituted arylene group; or a substituted or unsubstituted heteroarylene group;
X 1 to X 6 are N or CH;
at least one of X 1 to X 3 is N;
at least one of X 4 to X 6 is N; and
Z 1 to Z 4 are the same as or different from each other, and each independently hydrogen; deuterium; a halogen group; a nitrile group; a nitro group; a hydroxyl group; a carbonyl group; an ester group; an imide group; an amino group; a substituted or unsubstituted silyl group; a substituted or unsubstituted boron group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted heteroarylamine group; a substituted or unsubstituted arylamine group; a substituted or unsubstituted arylphosphine group; a substituted or unsubstituted phosphine oxide group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heterocyclic group.

2. The compound of claim 1 , wherein the compound of Chemical Formula 2 is represented by any one of the following Chemical Formula 5 to Chemical Formula 8:

wherein, in Chemical Formula 5 to Chemical Formula 8,
definitions of L, X 1 to X 6 and Z 1 to Z 4 are the same as in Chemical Formula 2.

3. The compound of claim 1 , wherein the compound of Chemical Formula 3 is represented by any one of the following Chemical Formula 9 to Chemical Formula 12:

wherein, in Chemical Formula 9 to Chemical Formula 12,
definitions of L, X 1 to X 3 , Z 1 and Z 2 are the same as in Chemical Formula 3.

4. The compound of claim 1 , wherein the compound of Chemical Formula 4 is represented by any one of the following Chemical Formula 13 to Chemical Formula 16:

wherein, in Chemical Formula 13 to Chemical Formula 16,
definitions of L, X 4 to X 6 , Z 3 and Z 4 are the same as in Chemical Formula 4.

5. A compound selected from among the following structures:

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

7. The organic light emitting device of claim 6 , wherein the organic material layer comprises at least one layer of an electron injection layer and an electron transfer layer, and one or more layers of the layers comprise the compound.

8. The organic light emitting device of claim 6 , wherein the organic material layer comprises a light emitting layer, and the light emitting layer comprises the compound as a host of the light emitting layer.

9. The organic light emitting device of claim 6 , wherein the organic material layer comprises one or more layers of a hole injection layer, a hole transfer layer, and a layer carrying out hole injection and hole transfer at the same time, and one or more layers of the layers comprise the compound.

10. The organic light emitting device of claim 6 , wherein the organic material layer comprises the compound as a host, and comprises other organic compounds, metals or metal compounds as a dopant.

11. The organic light emitting device of claim 6 , wherein the organic material layer comprises a light emitting layer, and the light emitting layer comprises a compound represented by the following Chemical Formula 17:

wherein, in Chemical Formula 17,
r is an integer of 1 or greater;
Ar1 is a substituted or unsubstituted monovalent or higher benzofluorene group; a substituted or unsubstituted monovalent or higher fluoranthene group; a substituted or unsubstituted monovalent or higher pyrene group; or a substituted or unsubstituted monovalent or higher chrysene group;
L1 is a direct bond; a substituted or unsubstituted arylene group; or a substituted or unsubstituted heteroarylene group;
Ar2 and Ar3 are the same as or different from each other, and each independently a substituted or unsubstituted aryl group; a substituted or unsubstituted silyl group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted arylalkyl group

Assignees

• Lg Chemical Ltd

Inventors

• Koo Kichul
• Jang Jungi
• Heo Dong Uk
• Han Miyeon
• Jung Min Woo

Classifications

• C09K2211/1096

  containing other heteroatoms · CPC title

• C09K2211/1092

  containing sulfur as the only heteroatom · CPC title

• C09K2211/1088

  containing oxygen as the only heteroatom · CPC title

• C09K2211/1059

  containing three nitrogen atoms as heteroatoms · CPC title

• C09K2211/1051

  with sulfur · CPC title