Compound for an organic photoelectric device, organic photoelectric device including the same, and display device including the organic photoelectric device

A compound for an organic photoelectric device, the compound being represented by Chemical Formula 1 or 2:

• wherein, in Chemical Formulae 1 and 2,
• X1 to X9 are each independently a heteroatom or CR, wherein R is selected from the group of hydrogen, a C1 to C30 alkyl group, and a C6 to C30 aryl group, and
• at least two of X1 to X3 are a heteroatom, at least one of X4 to X6 is a heteroatom, and at least one of X7 to X9 is a heteroatom;
• wherein, in Chemical Formula 1,
• Ar1 to Ar6 are each independently selected from the group of a substituted or unsubstituted C6 to C30 arylene group, a substituted or unsubstituted C3 to C30 heteroarylene group, a substituted or unsubstituted C6 to C30 arylaminylene group, a substituted or unsubstituted carbazolylene group, and a substituted or unsubstituted fluorenylene group,
• Ar7 to Ar12 are each independently selected from the group of a substituted or unsubstituted C6 to C30 aryl group, and a substituted or unsubstituted C3 to C30 heteroaryl group, and
• a, b, c, d, e, and f are each independently an integer ranging from 1 to 2;
• and
• wherein, in Chemical Formula 2,
• Ar13 to Ar18 are each independently selected from the group of a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C3 to C30 heteroaryl group, a substituted or unsubstituted C6 to C30 arylamine group, a substituted or unsubstituted carbazolyl group, and a substituted or unsubstituted fluorenyl group.