Hetero-cyclic compound and organic light emitting device comprising the same

Patent metadata

Field	Value
Publication number	US-9954181-B2
Application number	US-201415022849-A
Country	US
Kind code	B2
Filing date	Sep 22, 2014
Priority date	Sep 24, 2013
Publication date	Apr 24, 2018
Grant date	Apr 24, 2018

Abstract

The present specification provides a hetero-cyclic compound and an organic light emitting device including the hetero-cyclic compound.

First claim

The invention claimed is:

1. A hetero-cyclic compound represented by the following Chemical Formula 1:

in Chemical Formula 1,
X1 to X6 are the same as or different from each other, and are each independently a trivalent hetero atom or CH,
at least one of X1 to X3 is CH or at least one of X4 to X6 is CH,
at least one of X1 to X3 is N or at least one of X4 to X6 is N,
L1 and L2 are the same as each other, and are a direct bond; or a phenylene group,
Ar1 to Ar4 are the same as or different from each other, and are each independently an unsubstituted phenyl group, a phenyl group substituted by a nitrile group, a biphenyl group, a terphenyl group, a naphthyl group, a fluorenyl group substituted by a methyl group or a phenyl group, a phenanthryl group, a pyridine group, or a thiophene group, and

 are the same as each other.

2. The hetero-cyclic compound of claim 1 , wherein the compound represented by Chemical Formula 1 is represented by any one of the following Chemical Formulas 1-1 to 1-50:

3. The hetero-cyclic compound of claim 1 , wherein the compound represented by Chemical Formula 1 is represented by any one of the following Chemical Formulas 2-1 to 2-50:

4. An organic light emitting device comprising:
a first electrode;
a second electrode provided to face the first electrode; and
one or more organic material layers including a light emitting layer provided between the first electrode and the second electrode,
wherein one or more layers of the organic material layers include the hetero-cyclic compound according to claim 1 .

5. The organic light emitting device of claim 4 , wherein the organic material layer includes a hole injection layer or a hole transport layer, and the hole injection layer or the hole transport layer includes the hetero-cyclic compound.

6. The organic light emitting device of claim 4 , wherein the light emitting layer includes the hetero-cyclic compound as a host of the light emitting layer.

7. The organic light emitting device of claim 4 , wherein the organic material layer includes an electron transport layer or an electron injection layer, and the electron transport layer or the electron injection layer includes the hetero-cyclic compound.

8. The organic light emitting device of claim 4 ,
wherein the organic material layer including the hetero-cyclic compound includes the hetero-cyclic compound as a host, and includes another organic compound, a metal, or a metal compound as a dopant.

9. The organic light emitting device of claim 4 , further comprising:
one layer or two or more layers selected from the group consisting of a hole injection layer, a hole transport layer, an electron transport layer, an electron injection layer, an electron blocking layer, and a hole blocking layer.

10. An organic light emitting device comprising:
a first electrode;
a second electrode provided to face the first electrode;
a light emitting layer provided between the first electrode and the second electrode; and
two or more organic material layers provided between the light emitting layer and the first electrode or between the light emitting layer and the second electrode,
wherein at least one of the two or more organic material layers includes the hetero-cyclic compound according to claim 1 , and the two or more organic material layers include two or more selected from the group consisting of an electron transport layer, an electron injection layer, a layer simultaneously transporting and injecting electrons, and a hole blocking layer.

11. An organic light emitting device comprising:
a first electrode;
a second electrode provided to face the first electrode; and
one or more organic material layers including a light emitting layer provided between the first electrode and the second electrode,
wherein one or more layers of the organic material layers include the hetero-cyclic compound according to claim 2 .

12. An organic light emitting device comprising:
a first electrode;
a second electrode provided to face the first electrode; and
one or more organic material layers including a light emitting layer provided between the first electrode and the second electrode,
wherein one or more layers of the organic material layers include the hetero-cyclic compound according to claim 3 .

13. An organic light emitting device comprising:
a first electrode;
a second electrode provided to face the first electrode;
a light emitting layer provided between the first electrode and the second electrode; and
two or more organic material layers provided between the light emitting layer and the

Assignees

• Lg Chemical Ltd

Inventors

• Heo Dong Uk
• Lee Dong Hoon
• Lee Sangbin
• Jang Jungi
• Kim Seong So

Classifications

• C07D409/14

  containing three or more hetero rings · CPC title

• C09K11/025

  non-luminescent particle coatings or suspension media · CPC title

• C07F13/00

  Compounds containing elements of Groups 7 or 17 of the Periodic Table · CPC title

• C07D403/10 Primary

  linked by a carbon chain containing aromatic rings · CPC title

• C07D471/04

  Ortho-condensed systems · CPC title