Organic electroluminescence device

1. An organic electroluminescence device having at least an anode, a light-emitting zone and a cathode, wherein the light-emitting zone comprises a mixture containing at least two mutually interdispersed compounds, and a spectrum of the luminescence from the light-emitting zone includes at least one peak at a wavelength which is different from a spectrum of any one of fluorescent peak positions of the at least two compounds included in the light-emitting zone,

wherein the light-emitting zone comprises a mixture containing at least one electroluminescent material represented by the following formula [1]

wherein Ar 1 designates a substituted or non-substituted arylene group having 5 to 42 carbon atoms, Ar 2 to Ar 5 designate, independently with one another, a substituted or non-substituted aryl group having 6 to 20 carbon atoms, and

wherein at least one of Ar 2 to Ar 5 of the compound represented by the formula [1] has a substituted or non-substituted styryl group as a substituent.

2. The organic electroluminescence device according to claim 1 therein the spectrum of the luminescence from the light-emitting zone includes at least one peak at a wavelength which is longer than any one of the fluorescent peak positions of the separate compounds included in the light-emitting zone.

3. The organic electroluminescence device according to claim 1 wherein the light-emitting zone comprises a mixture containing at least two electroluminescent materials.

4. The organic electroluminescence device according to claim 2 wherein the light-emitting zone comprises a mixture containing at least two electroluminescent materials.

5. The organic electroluminescence device according to claim 1 wherein the light-emitting zone comprises a mixture containing at least one electroluminescent material and one fluorescence material.

6. The organic electroluminescence device according to claim 2 wherein the light-emitting zone comprises a mixture containing at least one electroluminescent material and one fluorescence material.

7. The organic electroluminescence device according to claim 1 wherein the light-emitting zone comprises a mixture containing at least one of fluorescence materials such as a substituted or non-substituted aromatic hydrocarbon, a substituted or non-substituted fused polycyclic hydrocarbon, a substituted or non-substituted heterocyclic compound, and a substituted or non-substituted fused heterocyclic compound.

8. The organic electroluminescence device according to claim 2 wherein the light-emitting zone comprises a mixture containing at least one of fluorescence materials such as a substituted or non-substituted aromatic hydrocarbon, a substituted or non-substituted fused polycyclic hydrocarbon, a substituted or non-substituted heterocyclic compound, and a substituted or non-substituted fused heterocyclic compound.

9. The organic electroluminescence device according to claim 3 wherein the light-emitting zone comprises a mixture containing at least one of fluorescence materials such as a substituted or non-substituted aromatic hydrocarbon, a substituted or non-substituted fused polycyclic hydrocarbon, a substituted or non-substituted heterocyclic compound, and a substituted or non-substituted fused heterocyclic compound.

10. The organic electroluminescence device according to claim 4 wherein the light-emitting zone comprises a mixture containing at least one of fluorescence materials such as a substituted or non-substituted aromatic hydrocarbon, a substituted or non-substituted fused polycyclic hydrocarbon, a substituted or non-substituted heterocyclic compound, and a substituted or non-substituted fused heterocyclic compound.

11. The organic electroluminescence device according to claim 5 wherein the light-emitting zone comprises a mixture containing at least one of fluorescence materials such as a substituted or non-substituted aromatic hydrocarbon, a substituted or non-substituted fused polycyclic hydrocarbon, a substituted or non-substituted heterocyclic compound, and a substituted or non-substituted fused heterocyclic compound.

12. The organic electroluminescence device according to claim 6 wherein the light-emitting zone comprises a mixture containing at least one of fluorescence materials such as a substituted or non-substituted aromatic hydrocarbon, a substituted or non-substituted fused polycyclic hydrocarbon, a substituted or non-substituted heterocyclic compound, and a substituted or non-substituted fused heterocyclic compound.

13. The organic electroluminescence device according to claim 1 wherein the light-emitting zone is adjacent to the anode.

14. The organic electroluminescence device according to claim 2 wherein the light-emitting zone is adjacent to the anode.

15. The organic electroluminescence device according to claim 3 wherein the light-emitting zone is adjacent to the anode.

16. The organic electroluminescence device according to claim 4 wherein the light-emitting zone is adjacent to the anode.

17. The organic electroluminescence device according to claim 5 wherein the light-emitting zone is adjacent to the anode.

18. The organic electroluminescence device according to claim 6 wherein the light-emitting zone is adjacent to the anode.

19. The organic electroluminescence device according to claim 7 wherein the light-emitting zone is adjacent to the anode.

20. The organic electroluminescence device according to claim 8 wherein the light-emitting zone is adjacent to the anode.

21. The organic electroluminescence device according to claim 9 wherein the light-emitting zone is adjacent to the anode.

22. The organic electroluminescence device according to claim 10 wherein the light-emitting zone is adjacent to the anode.

23. The organic electroluminescence device according to claim 11 wherein the light-emitting zone is adjacent to the anode.

24. The organic electroluminescence device according to claim 12 wherein the light-emitting zone is adjacent to the anode.

25. An organic electroluminescence device having at least an anode, a light-emitting zone and a cathode, wherein the light-emitting zone comprises a mixture containing at least two mutually interdispersed compounds, and a spectrum of the luminescence from the light-emitting zone includes at least one peak at a wavelength which is different from a spectrum of any one of fluorescent peak positions of the at least two compounds included in the light-emitting zone,

wherein a hole-injecting zone is present between the anode and the light-emitting zone, and

wherein the light-emitting zone comprises a mixture containing at least one electroluminescent material represented by the following formula [1]

wherein Ar 1 designates a substituted or non-substituted arylene group having 5 to 42 carbon atoms, Ar 2 to Ar 5 designate, independently with one another, a substituted or non-substituted aryl group having 6 to 20 carbon atoms.

26. The organic electroluminescence device according to claim 25 wherein the spectrum of the luminescence from the light-emitting zone includes at least one peak at a wavelength which is longer than any one of the fluorescent peak positions of the separate compounds included in the light-emitting zone.

27. The organic electroluminescence device according to claim 25 wherein the light-emitting zone comprises a mixture containing at least two electroluminescent materials.

28. The organic electroluminescence device according to claim 26 wherein the light-emitting zone comprises a mixture containing at least two electroluminescent materials.

29. The organic electroluminescence device according to claim 25 wherein the light-emitting zone comprises a mixture containing at least one electroluminescent material and one fluorescence material.

30. The organic electroluminescence device according to claim 26 wherein the light-emitting zone comprises a mixture containing at least one electroluminescent material and one fluorescence material.

31. The organic electroluminescence device according to claim 1 wherein a hole-injecting zone is present between the anode and the light-emitting zone.

32. The organic electroluminescence device according to claim 2 wherein a hole-injecting zone is present between the anode and the light-emitting zone.

33. The organic electroluminescence device according to claim 3 wherein a hole-injecting zone is present between the anode and the light-emitting zone.

34. The organic electroluminescence device according to claim 4 wherein a hole-injecting zone is present between the anode and the light-emitting zone.

35. The organic electroluminescence device according to claim 5 wherein a hole-injecting zone is present between the anode and the light-emitting zone.

36. The organic electroluminescence device according to claim 6 wherein a hole-injecting zone is present between the anode and the light-emitting zone.

37. An organic electroluminescence device having at least an anode, a light-emitting zone and a cathode, wherein the light-emitting zone comprises a mixture containing at least two mutually interdispersed compounds, and a spectrum of the luminescence from the light-emitting zone includes at least one peak at a wavelength which is different from a spectrum of any one of fluorescentpeak positions of the at least two compounds included in the light-emitting zone,

wherein a hole-injecting zone is present between the anode and the light-emitting zone, and

wherein the light-emitting zone comprises a mixture containing at least one electroluminescent material represented by the following formula [1]

wherein Ar 1 designates a substituted or non-substituted arylene group having 5 to 42 carbon atoms, Ar 2 to Ar 5 designate, independently with one another, a substituted or non-substituted aryl group having 6 to 20 carbon atoms, and

wherein the light-emitting zone comprises a mixture containing at least one of fluorescence materials such as a substituted or non-substituted aromatic hydrocarbon, a substituted or non-substituted fused polycyclic hydrocarbon, a substituted or non-substituted heterocyclic compound, and a substituted or non-substituted fused heterocyclic compound.

38. The organic electroluminescence device according to claim 26 wherein the light-emitting zone comprises a mixture containing at least one of fluorescence materials such as a substituted or non-substituted aromatic hydrocarbon, a substituted or non-substituted fused polycyclic hydrocarbon, a substituted or non-substituted heterocyclic compound, and a substituted or non-substituted fused heterocyclic compound.

39. The organic electroluminescence device according to claim 29 wherein the light-emitting zone comprises a mixture containing at least one of fluorescence materials such as a substituted or non-substituted aromatic hydrocarbon, a substituted or non-substituted fused polycyclic hydrocarbon, a substituted or non-substituted heterocyclic compound, and a substituted or non-substituted fused heterocyclic compound.

40. The organic electroluminescence device according to claim 30 wherein the light-emitting zone comprises a mixture containing at least one of fluorescence materials such as a substituted or non-substituted aromatic hydrocarbon, a substituted or non-substituted fused polycyclic hydrocarbon, a substituted or non-substituted heterocyclic compound, and a substituted or non-substituted fused heterocyclic compound.

41. The organic electroluminescence device according to claim 31 wherein the light-emitting zone comprises a mixture containing at least one of fluorescence materials such as a substituted or non-substituted aromatic hydrocarbon, a substituted or non-substituted fused polycyclic hydrocarbon, a substituted or non-substituted heterocyclic compound, and a substituted or non-substituted fused heterocyclic compound.

42. The organic electroluminescence device according to claim 32 wherein the light-emitting zone comprises a mixture containing at least one of fluorescence materials such as a substituted or non-substituted aromatic hydrocarbon, a substituted or non-substituted fused polycyclic hydrocarbon, a substituted or non-substituted heterocyclic compound, and a substituted or non-substituted fused heterocyclic compound.

43. The organic electroluminescence device according to claim 33 wherein the light-emitting zone comprises a mixture containing at least one of fluorescence materials such as a substituted or non-substituted aromatic hydrocarbon, a substituted or non-substituted fused polycyclic hydrocarbon, a substituted or non-substituted heterocyclic compound, and a substituted or non-substituted fused heterocyclic compound.

44. The organic electroluminescence device according to claim 34 wherein the light-emitting zone comprises a mixture containing at least one of fluorescence materials such as a substituted or non-substituted aromatic hydrocarbon, a substituted or non-substituted fused polycyclic hydrocarbon, a substituted or non-substituted heterocyclic compound, and a substituted or non-substituted fused heterocyclic compound.

45. The organic electroluminescence device according to claim 35 wherein the light-emitting zone comprises a mixture containing at least one of fluorescence materials such as a substituted or non-substituted aromatic hydrocarbon, a substituted or non-substituted fused polycyclic hydrocarbon, a substituted or non-substituted heterocyclic compound, and a substituted or non-substituted fused heterocyclic compound.

46. The organic electroluminescence device according to claim 12 wherein a hole-injecting zone is present between the anode and the light-emitting zone.

47. The organic electroluminescence device according to any one of claims 13 to 18 , 19 - 30 , 31 - 40 , and 41 - 46 wherein an electron-injecting zone is present between the cathode and the light-emitting zone.

48. An organic electroluminescence device having at least an anode, a light-emitting zone and a cathode, wherein the light-emitting zone comprises a mixture containing at least two mutually interdispersed compounds, and a spectrum of the luminescence from the light-emitting zone includes at least one peak at a wavelength which is different from a spectrum of any one of fluorescent peak positions of the at least two compounds included in the light-emitting zone,

wherein the light-emitting zone is adjacent to the anode;

wherein an electron-injecting zone is present between the cathode and the light-emitting zone; and

wherein the light-emitting zone comprises a mixture containing at least one electroluminescent material represented by the following formula [1]

wherein Ar1 designates a substituted or non-substituted arylene group having 5 to 42 carbon atoms, Ar2 to Ar5 designate, independently with one another, a substituted or non-substituted aryl group having 6 to 20 carbon atoms.

49. An organic electroluminescence device having at least an anode, a light-emitting zone and a cathode, wherein the light-emitting zone comprises a mixture containing at least two mutually interdispersed compounds, and a spectrum of the luminescence from the light-emitting zone includes at least one peak at a wavelength which is different from a spectrum of any one of fluorescent peak positions of the at least two compounds included in the light-emitting zone,

wherein the light-emitting zone is adjacent to the anode;

wherein an electron-injecting zone is present between the cathode and the light-emitting zone, wherein the spectrum of the luminescence from the light-emitting zone includes at least one peak at a wavelength which is longer than any one of the fluorescent peak positions of the separate compounds included in the light-emitting zone; and

wherein the light-emitting zone comprises a mixture containing at least one electroluminescent material represented by the following formula [1]

wherein Ar1 designates a substituted or non-substituted arylene group having 5 to 42 carbon atoms, Ar2 to Ar5 designate, independently with one another, a substituted or non-substituted aryl group having 6 to 20 carbon atoms.

50. An organic electroluminescence device having at least an anode, a light-emitting zone and a cathode, wherein the light-emitting zone comprises a mixture containing at least two mutually interdispersed compounds, and a spectrum of the luminescence from the light-emitting zone includes at least one peak at a wavelength which is different from a spectrum of any one of fluorescent peak positions of the at least two compounds included in the light-emitting zone;

wherein the light-emitting zone is adjacent to the anode; and

wherein an electron-injecting zone is present between the cathode and the light-emitting zone, wherein the light-emitting zone comprises a mixture containing at least two electroluminescent materials,

wherein at least one electroluminescent material is represented by the following formula [1]

wherein Ar1 designates a substituted or non-substituted arylene group having 5 to 42 carbon atoms, Ar2 to Ar5 designate, independently with one another, a substituted or non-substituted aryl group having 6 to 20 carbon atoms.

51. An organic electroluminescence device having at least an anode, a light-emitting zone and a cathode, wherein the light-emitting zone comprises a mixture containing at least two mutually interdispersed compounds, and a spectrum of the luminescence from the light-emitting zone includes at least one peak at a wavelength which is different from a spectrum of any one of fluorescent peak positions of the at least two compounds included in the light-emitting zone;

wherein the light-emitting zone is adjacent to the anode;

wherein an electron-injecting zone is present between the cathode and the light-emitting zone, the spectrum of the luminescence from the light-emitting zone includes at least one peak at a wavelength which is longer than any one of the fluorescent peak positions of the separate compounds included in the light-emitting zone; and

wherein the light-emitting zone comprises a mixture containing at least two electroluminescent materials, wherein

at least one electroluminescent material is represented by the following formula [1]

wherein Ar1 designates a substituted or non-substituted arylene group having 5 to 42 carbon atoms, Ar2 to Ar5 designate, independently with one another, a substituted or non-substituted aryl group having 6 to 20 carbon atoms.

52. An organic electroluminescence device having at least an anode, a light-emitting zone and a cathode, wherein the light-emitting zone comprises a mixture containing at least two mutually interdispersed compounds, and a spectrum of the luminescence from the light-emitting zone includes at least one peak at a wavelength which is different from a spectrum of any one of fluorescent peak positions of the at least two compounds included in the light-emitting zone;

wherein the light-emitting zone is adjacent to the anode;

wherein an electron-injecting zone is present between the cathode and the light-emitting zone, and wherein the light-emitting zone comprises a mixture containing at least one electroluminescent material and one fluorescence material,

wherein the at least one electroluminescent material is represented by the following formula [1]

wherein Ar1 designates a substituted or non-substituted arylene group having 5 to 42 carbon atoms, Ar2 to Ar5 designate, independently with one another, a substituted or non-substituted aryl group having 6 to 20 carbon atoms.

53. An organic electroluminescence device having at least an anode, a light-emitting zone and a cathode, wherein the light-emitting zone comprises a mixture containing at least two mutually interdispersed compounds, and a spectrum of the luminescence from the light-emitting zone includes at least one peak at a wavelength which is different from a spectrum of any one of fluorescent peak positions of the at least two compounds included in the light-emitting zone;

wherein the light-emitting zone is adjacent to the anode;

wherein an electron-injecting zone is present between the cathode and the light-emitting zone;

wherein the spectrum of the luminescence from the light-emitting zone includes at least one peak at a wavelength which is longer than any one of the fluorescent peak positions of the separate compounds included in the light-emitting zone; and

wherein the light-emitting zone comprises a mixture containing at least one electroluminescent material and one fluorescence material, and the

the at least one electroluminescent material is represented by the following formula [1]

wherein Ar1 designates a substituted or non-substituted arylene group having 5 to 42 carbon atoms, Ar2 to Ar5 designate, independently with one another, a substituted or non-substituted aryl group having 6 to 20 carbon atoms.

54. The organic electroluminescence device according to claim 48 wherein the light-emitting zone comprises a mixture containing at least one of fluorescence materials such as a substituted or non-substituted aromatic hydrocarbon, a substituted or non-substituted fused polycyclic hydrocarbon, a substituted or non-substituted heterocyclic compound, and a substituted or non-substituted fused heterocyclic compound.

55. The organic electroluminescence device according to claim 49 wherein the light-emitting zone comprises a mixture containing at least one of fluorescence materials such as a substituted or non-substituted aromatic hydrocarbon, a substituted or non-substituted fused polycyclic hydrocarbon, a substituted or non-substituted heterocyclic compound, and a substituted or non-substituted fused heterocyclic compound.

56. The organic electroluminescence device according to claim 50 wherein the light-emitting zone comprises a mixture containing at least one of fluorescence materials such as a substituted or non-substituted aromatic hydrocarbon, a substituted or non-substituted fused polycyclic hydrocarbon, a substituted or non-substituted heterocyclic compound, and a substituted or non-substituted fused heterocyclic compound.

57. The organic electroluminescence device according to claim 51 wherein the light-emitting zone comprises a mixture containing at least one of fluorescence materials such as a substituted or non-substituted aromatic hydrocarbon, a substituted or non-substituted fused polycyclic hydrocarbon, a substituted or non-substituted heterocyclic compound, and a substituted or non-substituted fused heterocyclic compound.

58. The organic electroluminescence device according to claim 52 wherein the light-emitting zone comprises a mixture containing at least one of fluorescence materials such as a substituted or non-substituted aromatic hydrocarbon, a substituted or non-substituted fused polycyclic hydrocarbon, a substituted or non-substituted heterocyclic compound, and a substituted or non-substituted fused heterocyclic compound.

59. The organic electroluminescence device according to claim 53 wherein the light-emitting zone comprises a mixture containing at least one of fluorescence materials such as a substituted or non-substituted aromatic hydrocarbon, a substituted or non-substituted fused polycyclic hydrocarbon, a substituted or non-substituted heterocyclic compound, and a substituted or non-substituted fused heterocyclic compound.