Heterocyclic compound and organic light emitting element using same

Patent metadata

Field	Value
Publication number	US-10323006-B2
Application number	US-201615757078-A
Country	US
Kind code	B2
Filing date	Sep 8, 2016
Priority date	Sep 11, 2015
Publication date	Jun 18, 2019
Grant date	Jun 18, 2019

Abstract

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

First claim

The invention claimed is:

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

in Chemical Formula 1,
X 1 to X 3 are the same as or different from each other, and are each independently N or CR 1 ,
at least one of X 1 to X 3 is N,
R 1 is hydrogen or deuterium,
Y 1 is a substituted or unsubstituted naphthylene group,
L 1 to L 4 are the same as or different from each other, and are each independently a direct bond; a substituted or unsubstituted arylene group; a substituted or unsubstituted heteroarylene group; or a substituted or unsubstituted divalent arylamine group,
Ar 1 and Ar 2 are the same as or different from each other, and are each independently hydrogen; deuterium; a halogen group; an amino group; a nitrile group; a nitro group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heteroaryl group, and at least one of Ar 1 and Ar 2 is not hydrogen or deuterium, and
Ar 3 and Ar 4 are the same as or different from each other, and are each independently a substituted or unsubstituted pyridyl group.

2. The compound of claim 1 , wherein the compound of Chemical Formula 1 is represented by the following Chemical Formula 2:

in Chemical Formula 2, the definitions of X 1 to X 3 , Ar 1 to Ar 4 , and L 1 to L 4 are the same as those in Chemical Formula 1.

3. The compound of claim 1 , wherein the compound of Chemical Formula 1 is represented by the following Chemical Formula 3 or 4:

in Chemical Formulae 3 and 4, the definitions of X 1 to X 3 , Ar 1 to Ar 4 , L 3 , and L 4 are the same as those in Chemical Formula 1.

4. The compound of claim 1 , wherein the compound of Chemical Formula 1 is represented by any one of the following Chemical Formulae 5 to 14:

in Chemical Formulae 5 to 14, the definitions of X 1 to X 3 , Ar 1 to Ar 4 , L 3 , and L 4 are the same as those in Chemical Formula 1.

5. The compound of claim 1 , wherein the compound of Chemical Formula 1 is represented by any one of the following Chemical Formulae 15 to 24:

in Chemical Formulae 15 to 24, the definitions of X 1 to X 3 , Ar 1 to Ar 4 , L 3 , and L 4 are the same as those in Chemical Formula 1.

6. The compound of claim 1 , wherein Ar a and Ar 4 are the same as or different from each other, and are each independently

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

8. 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 .

9. The organic light emitting device of claim 8 , wherein the organic material layer comprises at least one layer of an electron transport layer; an electron injection layer; and a layer which transports and injects electrons simultaneously, and at least one layer of the layers comprises the compound.

10. The organic light emitting device of claim 8 , wherein the organic material layer comprises an electron transport and hole blocking layer, and the electron transport and hole blocking layer comprises the compound.

11. The organic light emitting device of claim 8 , 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.

12. The organic light emitting device of claim 8 , wherein the organic material layer comprises at least one layer of a hole injection layer; a hole transport layer; and a layer which injects and transports holes simultaneously, and at least one layer of the layers comprises the compound.

13. The organic light emitting device of claim 8 , wherein the organic material layer comprises the compound as a host, and comprises another organic compound, a metal, or a metal compound as a dopant.

14. The organic light emitting device of claim 8 , wherein the organic material layer comprises a light emitting layer, and the light emitting layer comprises a compound of the following Chemical Formula A-1:

in Chemical Formula A-1,
n is an integer of 1 or more,
Ar5 is a substituted or unsubstituted monovalent or more benzofluorene group; a substituted or unsubstituted monovalent or more fluoranthene group; a substituted or unsubstituted monovalent or more pyrene group; or a substituted or unsubstituted monovalent or more chrysene group,
L5 is a direct bond; a substituted or unsubstituted arylene group; or a substituted or unsubstituted heteroarylene group,
Ar6 and Ar7 are the same as or different from each other, and are 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; or a substituted or unsubstituted heterocyclic group, or optionally combine with each other to form a substituted or unsubstituted ring, and
when n is 2 or more, two or more structures in the parenthesis are the same as or different from each other.

15. The organic light emitting device of claim 14 , wherein L5 is a direct bond,
Ar5 is a divalent pyrene group, and
Ar6 and Ar7 are the same as or different from each other, and are each independently an aryl group which is unsubstituted or substituted with a silyl group substituted with an alkyl group, and n is 2.

16. The organic light emitting device of claim 14 , wherein the light emitting layer comprises a compound represented by the fol

Assignees

• Lg Chemical Ltd

Inventors

• Jung Min Woo
• Lee Dong Hoon
• Huh Jungoh
• Jang Boonjae
• Kang Minyoung
• Heo Dong Uk
• Han Miyeon

Classifications

• C09K2211/1044

  containing two nitrogen atoms as heteroatoms · CPC title

• C07D251/12 Primary

  having three double bonds between ring members or between ring members and non-ring members · CPC title

• C07D401/14

  containing three or more hetero rings · CPC title

• C07D403/14

  containing three or more hetero rings · CPC title

• C09K11/06

  containing organic luminescent materials · CPC title