Aromatic condensed-ring compound, light emitting device material and light emitting device using the same

1. A light emitting device comprising at least one organic layer including a light emitting layer between a pair of electrodes, wherein said at least one organic layer comprises at least one compound represented by formula (1):

wherein Ar represents a heteroarene-triyl which can be substituted by a substituent group, and Ar 11 , Ar 21 and Ar 31 each represents an arylene group provided that at least one of Ar 11 , Ar 21 and Ar 31 each independently represents a fused arylene group, wherein the at least one of Ar 11 , Ar 21 and Ar 31 each represents a phenanthrenylene group, a pyrenylene group, a fluorenylene group, a chrysenylene group or a triphenylene group and Ar 21 , Ar 22 and Ar 32 each represents a substituent group.

2. The light emitting device of claim 1 , wherein the fused arylene group is a fused arylene group having at least four rings.

3. The light emitting device of claim 2 , wherein Ar 11 , Ar 21 and Ar 31 each represents the fused arylene group having at least four rings.

4. A light emitting device comprising at least one organic layer including a light emitting layer between a pair of electrodes, wherein said at least one organic layer comprises at least one compound represented by formula (1):

wherein Ar represents a heteroarene-triyl which can be substituted by a substituent group, and Ar 11 , Ar 21 and Ar 31 each represents an arylene group, provided that at least one of Ar 11 , Ar 21 Ar 31 is a fused arylene group, wherein the at least one of Ar 11 , Ar 21 and Ar 31 each represents a phenanthrenylene group, a pyrenylene group, a fluorenylene group, a chrysenylene group or a triphenylene group and wherein Ar 12 , Ar 22 and Ar 32 each represents a fused aryl group.

5. The light emitting device of claim 4 , wherein Ar 11 , Ar 21 and Ar 31 each represents a fused arylene group.

6. A light emitting device comprising at least one organic layer including a light emitting layer between a pair of electrodes, wherein said at least one organic layer comprises at least one compound represented by formula (1):

wherein Ar represents a heteroarene-triyl which can be substituted by a substituent group, and Ar 11 , Ar 21 and Ar 31 each represents an arylene group, provided that at least one of Ar 11 , Ar 21 and Ar 31 is a fused arylene group, and wherein Ar 12 , Ar 22 and Ar 32 each represents a phenanthrenyl group or a fused aryl group having at least four rings.

7. The light emitting device of claim 6 , wherein Ar 12 , Ar 22 and Ar 32 each represents a fused aryl group having at least four rings.

8. The light emitting device of claim 7 , wherein the fused aryl group having at least four rings is a pyrenyl group, a perylenyl group, a chrysenyl group or a triphenyl group.

9. A light emitting device comprising at least one organic layer including a light emitting layer between a pair of electrodes, wherein said at least one organic layer comprises at least one compound represented by formula (1):

wherein Ar represents a heteroarene-triyl which can be substituted by a substituent group, Ar 11 , Ar 21 and Ar 31 each represents an arylene group, provided that at least one of Ar 11 , Ar 21 Ar 31 , is a fused arylene group, and Ar 12 , Ar 22 and Ar 32 each represents a pyrenyl group.

10. A light emitting device comprising at least one organic layer including a light emitting layer between a pair of electrodes, wherein said at least one organic layer comprises at least one compound represented by formula (1):

wherein Ar represents a pyridine-triyl, a pyrazine-triyl, a quinoline-triyl or a quinoxaline-triyl group, each of which can be substituted by a substituent group, and Ar 11 , Ar 21 and Ar 31 each represents an arylene group provided that at least one of Ar 11 , Ar 21 and Ar 31 each independently represents a fused arylene group, and Ar 12 , Ar 22 and Ar 32 each represents a substituent group.

11. A light emitting device comprising at least one organic layer including a light emitting layer between a pair of electrodes, wherein said at least one organic layer comprises at least one compound represented by formula (1):

wherein Ar represents a heteroarene-triyl which can be substituted by a substituent group, Ar 11 , Ar 21 and Ar 31 each represents an arylene group which is a phenanthrenylene group or a fused arylene group having at least four rings, and Ar 12 , Ar 22 and Ar 32 each represents a phenanthrenyl group or a fused aryl group having at least four rings.

12. A light emitting device comprising at least one organic layer including a light emitting layer between a pair of electrodes, wherein said at least one organic layer comprises at least one compound represented by formula (1):

wherein Ar represents a heteroarene-triyl which can be substituted by a substituent group, and Ar 11 , Ar 21 and Ar 31 each represents an arylene group which is a phenanthrenylene group or a fused arylene group having at least four rings, and Ar 12 , Ar 22 and Ar 32 each represents a fused aryl group having at least four rings.

13. The light emitting device of claim 12 , wherein the fused aryl group having at least four rings represented by Ar 12 , Ar 22 and Ar 32 is a pyrenyl group, a perylenyl group, a chrysenyl group or a triphenyl group.

14. A light emitting device comprising at least one organic layer including a light emitting layer between a pair of electrodes, wherein said at least one organic layer comprises at least one compound represented by formula (1):

wherein Ar represents a heteroarene-triyl which can be substituted by a substituent group, and Ar 11 , Ar 21 and Ar 31 each represents an arylene group which is a phenanthrenylene group or a fused arylene group having at least four rings, and Ar 12 , Ar 22 and Ar 32 each represents a pyrenyl group.