Phosphorescent compounds and organic light emitting diode devices using the same

Patent metadata

Field	Value
Publication number	US-9373794-B2
Application number	US-201314100852-A
Country	US
Kind code	B2
Filing date	Dec 9, 2013
Priority date	Dec 26, 2012
Publication date	Jun 21, 2016
Grant date	Jun 21, 2016

Abstract

A phosphorescent compound is disclosed. The phosphorescent compound represented by the following Chemical Formula 1,

where X, Y, and Z are each selected from the group consisting of carbon and nitrogen, and when x, y, and z are all carbon, R is any one selected from the group consisting of carbazole, α-carboline, β-carboline, γ-carboline, fluorine, dibenzothiophene, dibenzofuran, triphenylsilane, tetraphenylsilane, pyridine, quinoline, isoquinoline, pyrimidine, diphenylphosphineoxide, and substituents thereof.

First claim

What is claimed is:

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

where X, Y, and Z are each selected from the group consisting of carbon and nitrogen, and R is any one selected from the group consisting of H, carbazole, α-carboline, β-carboline, γ-carboline, fluorine, dibenzothiophene, dibenzofuran, triphenylsilane, tetraphenylsilane, pyridine, quinoline, isoquinoline, pyrimidine, diphenylphosphineoxide, and substituents thereof.

2. The phosphorescent compound of claim 1 , wherein carboline comprising X, Y, and Z is any one selected from the group consisting of α-carboline where X is nitrogen and Y and Z are carbon, β-carboline where Y is nitrogen and X and Z are carbon, and γ-carboline where Z is nitrogen and X and Y are carbon.

3. The phosphorescent compound of claim 1 , wherein R is any one selected from the group consisting of compounds represented by the following Chemical Formula 2:

4. The phosphorescent compound of claim 1 , wherein the phosphorescent compound is any one selected from the compounds set forth below:

5. An organic light emitting diode device comprising an organic film formed between an anode and a cathode, the organic film comprising the phosphorescent compound of claim 1 .

6. The organic light emitting diode device of claim 5 , wherein the organic film is an emission layer.

7. The organic light emitting diode device of claim 5 , wherein the emission layer emits green light or blue light.

8. The organic light emitting diode device of claim 5 , wherein the compound is used as the host of the emission layer.

9. The organic light emitting diode device of claim 5 , further comprising one or more selected from the group consisting of a hole injection layer, a hole transport layer, an electron transport layer, and an electron injection layer between the anode and the cathode.

Assignees

• Lg Display Co Ltd

Inventors

• Lee Bangsook
• Bin Jongkwan
• Seo Bomin

Classifications

• C07F9/6561

  containing systems of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring or ring system, with or without other non-condensed hetero rings · CPC title

• C07F7/0812

  comprising a heterocyclic ring · CPC title

• C09K2211/1007

  Non-condensed systems · CPC title

• C07D409/14

  containing three or more hetero rings · CPC title

• C09K11/06

  containing organic luminescent materials · CPC title