Condensed-cyclic compound, organic light-emitting device comprising the same, and flat panel display apparatus including the device

1. A condensed-cyclic compound represented by Formula 1;

wherein X 1 is CR 1 R 2 , NR 3 , O, or S;

each of Ar 1 through Ar 12 is independently selected from the group consisting of hydrogen atoms, deuterium, halogen atoms, hydroxyl groups, cyano groups, nitro groups, carboxyl groups, substituted C 1 -C 30 alkyl groups, unsubstituted C 1 -C 30 alkyl groups, substituted C 2 -C 30 alkenyl groups, unsubstituted C 2 -C 30 alkenyl groups, substituted C 2 -C 30 alkynyl groups, unsubstituted C 2 -C 30 alkynyl groups, substituted C 1 -C 30 alkoxy groups, unsubstituted C 1 -C 30 alkoxy groups, substituted C 3 -C 30 cycloalkyl groups, unsubstituted C 3 -C 30 cycloalkyl groups, substituted C 3 -C 30 cycloalkenyl groups, unsubstituted C 3 -C 30 cycloalkenyl groups, substituted C 5 -C 30 aryl groups, unsubstituted C 5 -C 30 aryl groups, substituted C 5 -C 30 aryloxy groups, unsubstituted C 5 -C 30 aryloxy groups, substituted C 5 -C 30 arylthio groups, unsubstituted C 5 -C 30 arylthio groups, substituted C 2 -C 30 heterocyclic groups, unsubstituted C 2 -C 30 heterocyclic groups, groups represented by Formula 2, groups represented by N(Q 1 )(Q 2 ), and groups represented by Si(Q 3 )(Q 4 )(Q 5 );

wherein each of Q 1 through Q 5 is independently selected from the group consisting of hydrogen atoms, deuterium, halogen atoms, hydroxyl groups, cyano groups, amino groups, nitro groups, carboxyl groups, substituted C 1 -C 30 alkyl groups, unsubstituted C 1 -C 30 alkyl groups, substituted C 2 -C 30 alkenyl groups, unsubstituted C 2 -C 30 alkenyl group, substituted C 2 -C 30 alkynyl groups, unsubstituted C 2 -C 30 alkynyl groups, substituted C 1 -C 30 alkoxy groups, unsubstituted C 1 -C 30 alkoxy groups, substituted C 3 -C 30 cycloalkyl groups, unsubstituted C 3 -C 30 cycloalkyl groups, substituted C 3 -C 30 cycloalkenyl groups, unsubstituted C 3 -C 30 cycloalkenyl groups, substituted C 5 -C 30 aryl groups, unsubstituted C 5 -C 30 aryl groups, substituted C 5 -C 30 aryloxy groups, unsubstituted C 5 -C 30 aryloxy groups, substituted C 5 -C 30 arylthio groups, unsubstituted C 5 -C 30 arylthio groups, substituted C 2 -C 30 heterocyclic groups and unsubstituted C 2 -C 30 heterocyclic groups,

wherein at least one of Ar 1 through Ar 12 is a group represented by Formula 2;

wherein L 1 is a substituted or unsubstituted C 1 -C 30 alkylene group, a substituted or unsubstituted C 5 -C 30 arylene group, or a substituted or unsubstituted divalent C 2 -C 30 heterocyclic group;

a is an integer from 0 to 5;

each of R 1 through R 3 is independently a hydrogen atom, deuterium, a halogen atom, a hydroxyl group, a cyano group, an amino group, a nitro group, a carboxyl group, a substituted or unsubstituted C 1 -C 30 alkyl group, a substituted or unsubstituted C 2 -C 30 alkenyl group, a substituted or unsubstituted C 2 -C 30 alkynyl group, a substituted or unsubstituted C 1 -C 30 alkoxy group, a substituted or unsubstituted C 3 -C 30 cycloalkyl group, a substituted or unsubstituted C 3 -C 30 cycloalkenyl group, a substituted or unsubstituted C 5 -C 30 aryl group, a substituted or unsubstituted C 5 -C 30 aryloxy group, a substituted or unsubstituted C 5 -C 30 arylthio group, or a substituted or unsubstituted C 2 -C 30 heterocyclic group, and

each of R 4 and R 5 is independently a substituted or unsubstituted C 1 -C 30 alkyl group, a substituted or unsubstituted C 2 -C 30 alkenyl group, a substituted or unsubstituted C 2 -C 30 alkenyl group, a substituted or unsubstituted C 1 -C 30 alkoxy group, a substituted or unsubstituted C 3 -C 30 cycloalkyl group, a substituted or unsubstituted C 3 -C 30 cycloalkenyl group, a substituted or unsubstituted C 5 -C 30 aryl group, a substituted or unsubstituted C 5 -C 30 aryloxy group, a substituted or unsubstituted C 5 -C 30 arylthio group, or a substituted or unsubstituted C 2 -C 30 heterocyclic group, wherein plural numbers in R 4 and R 5 are the same as each other or different from each other.

2. The condensed-cyclic compound of claim 1 , wherein X 1 is CR 1 R 2 .

3. The condensed-cyclic compound of claim 1 , wherein X 1 is C(CH 3 )(CH 3 ).

4. The condensed-cyclic compound of claim 1 , wherein each of R 1 through R 3 is independently a hydrogen atom, deuterium, a halogen atom, a hydroxyl group, a cyano group, an amino group, a nitro group, a carboxyl group, a substituted or unsubstituted methyl group, a substituted or unsubstituted ethyl group, a substituted or unsubstituted propyl group, a substituted or unsubstituted butyl group, a substituted or unsubstituted pentyl group, a substituted or unsubstituted phenyl group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted fluorenyl group, a substituted or unsubstituted spiro-fluorenyl group, a substituted or unsubstituted anthryl group, a substituted or unsubstituted pyrazolyl group, a substituted or unsubstituted pyridinyl group, a substituted or unsubstituted pyrazinyl group, a substituted or unsubstituted pyrimidinyl group, or a substituted or unsubstituted pyridazinyl group.

5. The condensed-cyclic compound of claim 1 , wherein at least one of Ar 1 , Ar 3 , Ar 4 , Ar 6 , and Ar 9 is a group represented by Formula 2.

6. The condensed-cyclic compound of claim 1 , wherein each of Ar 2 , Ar 5 , Ar 7 , Ar 8 , Ar 10 , Ar 11 , and Ar 12 is a hydrogen atom, and each of Ar t , Ar 3 , Ar 4 , Ar 6 , and Ar 9 is independently deuterium, a halogen atom, a hydroxyl group, a cyano group, a nitro group, a carboxyl group, a substituted or unsubstituted C 1 -C 30 alkyl group, a substituted or unsubstituted C 2 -C 30 alkenyl group, a substituted or unsubstituted C 2 -C 30 alkynyl group, a substituted or unsubstituted C 1 -C 30 alkoxy group, a substituted or unsubstituted C 3 -C 30 cycloalkyl group, a substituted or unsubstituted C 3 -C 30 cycloalkenyl group, a substituted or unsubstituted C 5 -C 30 aryl group, a substituted or unsubstituted C 5 -C 30 aryloxy group, a substituted or unsubstituted C 5 -C 30 arylthio group, a substituted or unsubstituted C 2 -C 30 heterocyclic group, a group represented by Formula 2 above, a group represented by N(Q 1 )(Q 2 ), or a group represented by Si(Q 3 )(Q 4 )(Q 5 ), wherein at least one of Ar t , Ar 3 , Ar 4 , Ar 6 , and Ar 9 is a group represented by Formula 2.

7. The condensed-cyclic compound of claim 1 , wherein each of Ar 2 , Ar 5 , Ar 7 , Ar 8 , Ar 10 , Ar 11 , and Ar 12 is a hydrogen atom, and each of Ar 1 , Ar 3 , Ar 4 , Ar 6 , and Ar 9 is independently a hydrogen atom, deuterium, a halogen atom, a hydroxyl group, a cyano group, a nitro group, a carboxyl group, a substituted or unsubstituted methyl group, a substituted or unsubstituted ethyl group, a substituted or unsubstituted propyl group, a substituted or unsubstituted butyl group, a substituted or unsubstituted pentyl group, a substituted or unsubstituted phenyl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted pentalenyl group, a substituted or unsubstituted indenyl group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted azulenyl group, a substituted or unsubstituted heptalenyl group, a substituted or unsubstituted indacenyl group, a substituted or unsubstituted acenaphthyl group, a substituted or unsubstituted fluorenyl group, a substituted or unsubstituted spiro-fluorenyl group, a substituted or unsubstituted phenalenyl group, a substituted or unsubstituted phenanthrenyl group, a substituted or unsubstituted anthryl group, a substituted or unsubstituted fluoranthenyl group, a substituted or unsubstituted triphenylenyl group, a substituted or unsubstituted pyrenyl group, a substituted or unsubstituted chrysenyl group, a substituted or unsubstituted naphthacenyl group, a substituted or unsubstituted picenyl group, a substituted or unsubstituted perylenyl group, a substituted or unsubstituted pentaphenyl group, a substituted or unsubstituted hexacenyl group, a substituted or unsubstituted pyrrolyl group, a substituted or unsubstituted imidazolyl group, a substituted or unsubstituted pyrazolyl group, a substituted or unsubstituted pyridinyl group, a substituted or unsubstituted pyrazinyl group, a substituted or unsubstituted pyrimidinyl group, a substituted or unsubstituted pyridazinyl group, a substituted or unsubstituted isoindolyl group, a substituted or unsubstituted indolyl group, a substituted or unsubstituted indazolyl group, a substituted or unsubstituted purinyl group, a substituted or unsubstituted quinolinyl group, a substituted or unsubstituted benzoquinolinyl group, a substituted or unsubstituted phthalazinyl group, a substituted or unsubstituted naphthyridinyl group, a substituted or unsubstituted quinoxalinyl group, a substituted or unsubstituted quinazolinyl group, a substituted or unsubstituted cinnolinyl group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted phenanthridinyl group, a substituted or unsubstituted acridinyl group, a substituted or unsubstituted phenanthrolinyl group, a substituted or unsubstituted phenazinyl group, a substituted or unsubstituted benzooxazolyl group, a substituted or unsubstituted benzoimidazolyl group, a substituted or unsubstituted furanyl, a substituted or unsubstituted benzofuranyl group, a substituted or unsubstituted thiophenyl group, a substituted or unsubstituted benzothiophenyl group, a substituted or unsubstituted thiazolyl group, a substituted or unsubstituted isothiazolyl group, a substituted or unsubstituted benzothiazolyl group, a substituted or unsubstituted isoxazolyl group, a substituted or unsubstituted oxazolyl group, a substituted or unsubstituted triazolyl group, a substituted or unsubstituted tetrazolyl group, a substituted or unsubstituted oxadiazolyl group, a substituted or unsubstituted triazinyl group, a substituted or unsubstituted benzooxazolyl group, a substituted or unsubstituted dibenzofuranyl group, a substituted or unsubstituted dibenzothiophenyl group, or a group represented by Formula 2 above, wherein at least one of Ar 1 , Ar 3 , Ar 4 , Ar 6 , and Ar 9 is a group represented by Formula 2.

8. The condensed-cyclic compound of claim 1 , wherein L 1 in Formula 2 is a substituted or unsubstituted phenylene group, a substituted or unsubstituted pentalenylene group, a substituted or unsubstituted indenylene group, a substituted or unsubstituted naphthylene group, a substituted or unsubstituted azulenylene group, a substituted or unsubstituted heptalenylene group, a substituted or unsubstituted indacenylene group, a substituted or unsubstituted acenaphthylene group, a substituted or unsubstituted fluorenylene group, a substituted or unsubstituted spiro-fluorenyl group, a substituted or unsubstituted phenalenylene group, a substituted or unsubstituted phenanthrenylene group, a substituted or unsubstituted anthrylene group, a substituted or unsubstituted fluoranthenylene group, a substituted or unsubstituted triphenylenylene group, a substituted or unsubstituted pyrenylene group, a substituted or unsubstituted chrysenyl group, a substituted or unsubstituted naphthacenyl group, a substituted or unsubstituted picenyl group, a substituted or unsubstituted perylenylene group, a substituted or unsubstituted pentaphenylene group, or a substituted or unsubstituted hexalenylene group.

9. The condensed-cyclic compound of claim 1 , wherein a in Formula 2 is 0 or 1.

10. The condensed-cyclic compound of claim 1 , wherein each of R 4 and R 5 in Formula 2 is independently a substituted or unsubstituted methyl group, a substituted or unsubstituted ethyl group, a substituted or unsubstituted propyl group, a substituted or unsubstituted butyl group, a substituted or unsubstituted pentyl group, a substituted or unsubstituted phenyl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted fluorenyl group, a substituted or unsubstituted spiro-fluorenyl group, a substituted or unsubstituted anthryl group, a substituted or unsubstituted indenoanthracenyl group, a substituted or unsubstituted pyrazolyl group, a substituted or unsubstituted pyridinyl group, a substituted or unsubstituted bipyridinyl group, a substituted or unsubstituted pyridazinyl group, a substituted or unsubstituted pyrimidinyl group, a substituted or unsubstituted pyrazinyl group, a substituted or unsubstituted quinolinyl group, or a substituted or unsubstituted phenanthrolinyl group.

11. The condensed-cyclic compound of claim 1 , wherein R 4 and R 5 are the same as each other and each of R 4 and R 5 is a substituted or unsubstituted methyl group, a substituted or unsubstituted ethyl group, a substituted or unsubstituted propyl group, a substituted or unsubstituted butyl group, a substituted or unsubstituted pentyl group, a substituted or unsubstituted phenyl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted fluorenyl group, a substituted or unsubstituted spiro-fluorenyl group, a substituted or unsubstituted anthryl group, a substituted or unsubstituted indenoanthracenyl group, a substituted or unsubstituted pyrazolyl group, a substituted or unsubstituted pyridinyl group, a substituted or unsubstituted bipyridinyl group, a substituted or unsubstituted pyridazinyl group, a substituted or unsubstituted pyrimidinyl group, a substituted or unsubstituted pyrazinyl group, a substituted or unsubstituted quinolinyl group, or a substituted or unsubstituted phenanthrolinyl group.

12. The condensed-cyclic compound of claim 1 , wherein the group represented by Formula 2 is selected from the group consisting of groups represented by Formulas 2A through 2U:

13. The condensed-cyclic compound of claim 1 , wherein the condensed-cyclic compound represented by Formula 1 is selected from the group consisting of compounds represented by Compounds 1 through 40:

14. An organic light-emitting device comprising:

a first electrode;

a second electrode facing the first electrode; and

an organic light-emitting device comprising at least one organic layer between the first electrode and the second electrode, wherein the at least one organic layer comprises the condensed-cyclic compound of claim 1 .

15. The organic light-emitting device of claim 14 , wherein the organic layer comprises an electron injection layer, an electron transport layer, or a single layer having both electron injection and electron transport functions.

16. The organic light-emitting device of claim 14 , wherein the at least one organic layer is an emission layer.

17. The organic light-emitting device of claim 14 , wherein the at least one organic layer is an emission layer, the condensed-cyclic compound is a fluorescent host or a phosphorescent host, and the emission layer further comprises a fluorescent dopant or a phosphorescent dopant.

18. The organic light-emitting device of claim 14 , further comprising at least one layer selected from the group consisting of a hole injection layer, a hole transport layer, an electron blocking layer, a hole blocking layer, an electron transport layer, and an electron injection layer between the first electrode and the second electrode.

19. The organic light-emitting device of claim 14 , wherein the organic light-emitting device has a first electrode/hole injection layer/emission layer/electron transport layer/electron injection layer/second electrode structure, a first electrode/hole injection layer/hole transport layer/emission layer/electron transport layer/electron injection layer/second electrode structure, or a first electrode/hole injection layer/hole transport layer/emission layer/hole blocking layer/electron transport layer/electron injection layer/second electrode structure.

20. A flat panel display apparatus comprising:

a transistor comprising a source electrode, a drain electrode, a gate, and an active layer, and

the organic light-emitting device of claim 14 ,

wherein the first electrode of the organic light-emitting device is electrically connected to the source electrode or the drain electrode of the transistor.