Organic electroluminescent element, display device and lighting device

1. An organic electroluminescent element comprising a substrate having thereon at least an anode and a cathode, and a light emitting layer between the aforesaid anode and the aforesaid cathode, wherein at least one light emitting layer incorporates a compound represented by Formula (A):

wherein A1 represents a nitrogen-atom containing substituent and A2 represents a hydrogen atom or a substituent; X and Y each represents; L1, L2, and L3 each represents a divalent linking group; n represents an integer of 1 or more; n1 and n2 each represents an integer of 1 or more; and n3 and n4 each represents an integer of 0 or 1, provided that the following condition is satisfied, n1 +n2≧2.

2. The organic electroluminescent element of claim 1 , wherein the aforesaid L3 represents an arylene group, a heteroarylene group, a divalent heterocyclic group or an alkylene group.

3. The organic electroluminescent element of claim 1 , wherein the aforesaid L3 represents an arylene group.

4. The organic electroluminescent element of claim 1 , wherein the aforesaid L3 represents a m-phenylene group.

5. The organic electroluminescent element of claim 1 , wherein the aforesaid n1 represents 1 or 2.

6. The organic electroluminescent element of claim 1 , wherein the aforesaid n2 represents 1 or 2.

7. The organic electroluminescent element of claim 1 , wherein the aforesaid n represents 1 or 2.

8. The organic electroluminescent element of claim 1 , wherein the aforesaid nitrogen atom-containing substituent is a carbazolyl group.

9. The organic electroluminescent element of claim 1 , wherein the aforesaid nitrogen atom-containing substituent represents a carbolinyl group and the aforesaid carbolinyl group is the substituent which is derived from the carboline derivative represented by Formula (a):

wherein X 1 -X 8 each represents a nitrogen atom or —C(Ra)═; at least one of the aforesaid X 1 -X 8 represents a nitrogen atom; and Ra and Rb each represents a hydrogen atom or a substituent.

10. The organic electroluminescent element of claim 1 , wherein the aforesaid nitrogen atom-containing substituent is a diarylamino group.

11. The organic electroluminescent element of claim 1 , wherein the aforesaid light emitting layer incorporates a phosphorescence emitting metal complex.

12. The organic electroluminescent element of claim 11 , wherein the aforesaid phosphorescence emitting metal complex is an Ir complex.

13. The organic electroluminescent element of claim 11 , wherein the aforesaid phosphorescence emitting metal complex is represented by Formula (B):

wherein R 1 represents a substituent; Z represents a group of metal atoms necessary for forming a 5-7 membered ring; n 1 represents an integer of 0-5; B 1 -B 5 each represents a carbon atom, a nitrogen atom, an oxygen atom, or a sulfur atom and at least one represents a nitrogen atom; M 1 represents a metal of Groups 8-10 in the element periodic table; X 1 and X 2 each represents a carbon atom, a nitrogen atom, or an oxygen atom; L 1 represents a group of atoms which form a bidentate ligand with X 1 and X 2 ; m1 represents 1, 2, or 3; and m2 represents 0, 1, or 2, provided that a sum of m1 and m2 is 2 or 3.

14. The organic electroluminescent element of claim 1 , wherein m2 of the phosphorescence emitting metal complex represented by the aforesaid Formula (B) is 0.

15. The organic electroluminescent element of claim 13 , wherein a nitrogen-containing heterocyclic ring formed by phosphorescence emitting metal complexes B1-B5 represented by the aforesaid Formula (B) is an imidazole ring.

16. The organic electroluminescent element of claim 1 , emitting white light.

17. A display device provided with the organic electroluminescent element of claim 1 .

18. An illuminating device provided with the organic electroluminescent element of claim 1 .