Organic electroluminescent device

Abstract

An organic electroluminescent device comprises: a pair of electrodes; and at least one organic compound layer therebetween, the at least one organic compound layer comprises at least a light-emitting layer, wherein at least one of the at least one organic compound layer comprises at least one compound represented by formula (1):

Description

Claims

1. An organic electroluminescent device, which comprises: a pair of electrodes; andat least one organic compound layer between the pair of electrodes, the at least one organic compound layer comprises at least a light-emitting layer,wherein at least one of the at least one organic compound layer comprises at least one compound represented by formula (1):

2. The organic electroluminescent device according to claim 1, wherein the at least one compound represented by formula (1) has a glass transition temperature of from 130 to 450° C.

3. The organic electroluminescent device according to claim 1, wherein the at least one compound represented by formula (1) has the lowest excited triplet energy level of from 63 kcal/mol (263.97 kJ/mol) to 95 kcal/mol (398.05 kJ/mol).

4. The organic electroluminescent device according to claim 1, wherein the light-emitting layer comprises a light-emitting material, andwherein the light-emitting material comprises at least a phosphorescent material.

5. The organic electroluminescent device according to claim 4, wherein the phosphorescent material is an iridium complex or a platinum complex.

6. The organic electroluminescent device according to claim 1, wherein the light-emitting layer comprises the at least one compound represented by formula (1).

7. The organic electroluminescent device according to claim 1, wherein the at least one compound represented by formula (1) is represented by formula (2):

8. The organic electroluminescent device according to claim 7, wherein the at least one compound represented by formula (2) is represented by formula (3):

9. The organic electroluminescent device according to claim 8, wherein the at least one compound represented by formula (3) is represented by formula (4):

10. The organic electroluminescent device according to claim 9, wherein the at least one compound represented by formula (4) is represented by formula (5):

11. The organic electroluminescent device according to claim 4, wherein the phosphorescent material is a platinum complex of a tetradentate ligand.

12. The organic electroluminescent device according to claim 4, wherein the phosphorescent material is an iridium complex having a fluorine-substituted phenyl group in a ligand.