Benzimidazole-substituted fluoranthene compound, and organic light emitting device including the same

1 . A compound of Chemical Formula 1:

wherein, in Chemical Formula 1:

L is a direct bond, a substituted or unsubstituted arylene group, or a substituted or unsubstituted heteroarylene group;

n is 1 or 2, and when n is 2, the Ls are the same as or different from each other;

R1 to R4 are the same as or different from each other, and are each independently hydrogen, deuterium, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group; or a substituted or unsubstituted heteroaryl group;

r2 is 4, and the R2s are the same as or different from each other;

r3 is 6, and 3s are the same as or different from each other; and

Ar1 and Ar2 are the same as or different from each other, and each independently is a substituted or unsubstituted aryl group.

2 . The compound of claim 1 , wherein L is a direct bond, a phenylene group, a naphthylene group, a biphenylylene group, a divalent phenanthrene group, a divalent phenalene group, a divalent pyrene group, a divalent fluoranthene group, a divalent dimethylfluorenyl group, a divalent spirocyclohexanefluorene group, a divalent pyridine group, a divalent pyridazine group, a divalent carbazole group, a divalent dibenzothiophene group, a divalent t-benzothiophene group, or a divalent quinazoline group.

3 . The compound of claim 1 , wherein R1 is an alkyl group having 2 to 10 carbon atoms.

4 . The compound of claim 1 , wherein Ar1 and Ar2 are the same as or different from each other, and are each independently an aryl group that is unsubstituted or substituted with one or more substituents selected from the group consisting of an alkyl group, an alkoxy group, an aryl group, and a heteroaryl group.

5 . The compound of claim 1 , wherein the compound of Chemical Formula 1 is any one compound selected from among the following compounds:

6 . An organic light emitting device comprising:

a first electrode;

a second electrode provided opposite to the first electrode; and

one or more organic material layers provided between the first electrode and the second electrode,

wherein at least one of the organic material layers includes the compound of claim 1 .

7 . The organic light emitting device of claim 6 , wherein:

the organic material layer includes a hole blocking layer, an electron injection layer, an electron transfer layer, or an electron injection and transfer layer; and

the hole blocking layer, the electron injection layer, the electron transfer layer, or the electron injection and transfer layer includes the compound.