Organic compound, and organic light emitting diode and organic light emitting display device including the same

An organic light emitting diode, comprising:

• first and second electrodes facing each other;
• a first emitting material layer between the first and second electrodes;
• a first hole auxiliary layer between the first electrode and the first emitting material layer;
• and
• a first electron auxiliary layer between the first emitting material layer and the second electrode,
• wherein the first hole auxiliary layer comprises a first host and a first dopant including an organic compound represented by the following Formula 1:
• wherein:
• each of X1, X2 and X3 is independently selected from carbon (C) and nitrogen (N),
• provided that at least one of X1 to X3 is N, and
• each of Z1, Z2 and Z3 is independently selected from a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C5 to C30 heteroaryl group, a substituted or unsubstituted C1 to C12 alkyl group, a substituted or unsubstituted C1 to C12 alkoxy group, a substituted or unsubstituted C1 to C12 ether group, halogen, cyano (CN), trimethylsilyl, Formula 2, Formula 3 and Formula 4, provided that at least one of Z1 to Z3 is represented by one of the following Formulas 2 to 4,
• wherein in Formula 2,
• each of X11 and X12 is independently selected from C and N, provided that at least one of X11 and X12 is N,
• each of X13 to X16 is independently selected from C and N,
• R1 is selected from a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C5 to C30 heteroaryl group, a substituted or unsubstituted C1 to C12 alkyl group, a substituted or unsubstituted C1 to C12 alkoxy group, cyano, halogen and trifluoromethyl, and
• m1 is an integer of 0 to 4,
• wherein in Formula 3,
• each of X21 and X22 is independently selected from C and N, provided that at least one of X21 and X22 is N,
• R2 is selected from cyano and phenyl,
• R3 is selected from a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C5 to C30 heteroaryl group, a substituted or unsubstituted C1 to C12 alkyl group, a substituted or unsubstituted C1 to C12 alkoxy group, cyano, halogen and trifluoromethyl, and m2 is an integer of 0 to 3,
• wherein in Formula 4,
• each of X31 and X32 is independently selected from N and oxygen (O), provided that when one of X31 and X32 is N, then the other one of X31 and X32 is O,
• each of X33 to X36 is independently selected from C and N,
• R4 is selected from a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C5 to C30 heteroaryl group, a substituted or unsubstituted C1 to C12 alkyl group, a substituted or unsubstituted C1 to C12 alkoxy group, cyano, halogen and trifluoromethyl, and
• m3 is an integer of 0 to 4.

An organic light emitting diode, comprising:

• first and second electrodes facing each other;
• a first charge generation layer between the first and second electrodes and including a first N-type charge generation layer and a first P-type charge generation layer;
• a first emitting stack including a first emitting material layer between the first electrode and the first N-type charge generation layer, a first hole auxiliary layer between the first electrode and the first emitting material layer, and a first electron auxiliary layer between the first emitting material layer and the first N-type charge generation layer;
• and
• a second emitting stack including a second emitting material layer between the first P-type charge generation layer and the second electrode, a second hole auxiliary layer between the first P-type charge generation layer and the second emitting material layer, and a second electron auxiliary layer between the second emitting material layer and the second electrode,
• wherein the first P-type charge generation layer comprises a first host and a first dopant including an organic compound represented by the following Formula 1:
• wherein:
• each of X1, X2 and X3 is independently selected from carbon (C) and nitrogen (N), provided that at least one of X1 to X3 is N, and
• each of Z1, Z2 and Z3 is independently selected from a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C5 to C30 heteroaryl group, a substituted or unsubstituted C1 to C12 alkyl group, a substituted or unsubstituted C1 to C12 alkoxy group, a substituted or unsubstituted C1 to C12 ether group, halogen, cyano (CN), trimethylsilyl, Formula 2, Formula 3 and Formula 4, provided that at least one of Z1 to Z3 is represented by one of the following Formulas 2 to 4,
• wherein in Formula 2,
• each of X11 and X12 is independently selected from C and N, provided that at least one of X11 and X12 is N,
• each of X13 to X16 is independently selected from C and N,
• R1 is selected from a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C5 to C30 heteroaryl group, a substituted or unsubstituted C1 to C12 alkyl group, a substituted or unsubstituted C1 to C12 alkoxy group, cyano, halogen and trifluoromethyl, and
• m1 is an integer of 0 to 4,
• wherein in Formula 3,
• each of X21 and X22 is independently selected from C and N, provided that at least one of X21 and X22 is N,
• R2 is selected from cyano and phenyl,
• R3 is selected from a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C5 to C30 heteroaryl group, a substituted or unsubstituted C1 to C12 alkyl group, a substituted or unsubstituted C1 to C12 alkoxy group, cyano, halogen and trifluoromethyl, and m2 is an integer of 0 to 3,
• wherein in Formula 4,
• each of X31 and X32 is independently selected from N and oxygen (O), provided that when one of X31 and X32 is N, then the other one of X31 and X32 is O,
• each of X33 to X36 is independently selected from C and N,
• R4 is selected from a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C5 to C30 heteroaryl group, a substituted or unsubstituted C1 to C12 alkyl group, a substituted or unsubstituted C1 to C12 alkoxy group, cyano, halogen and trifluoromethyl, and
• m3 is an integer of 0 to 4.