Heterocyclic compound and organic light-emitting element comprising same

1. A compound represented by the following Formulae 6 or 7:

in Formulae 6 and 7,

Ar1 and Ar2 are the same as each other, and a phenyl group, which is unsubstituted or substituted with one or more substituents selected from the group consisting of deuterium, a halogen group, a nitrile group, a nitro group, a hydroxy group, a carbonyl group, an ester group, an imide group, an amino group, a phosphineoxide group, an alkoxy group, an aryloxy group, an alkylthioxy group, an arylthioxy group, an alkylsulfoxy group, an arylsulfoxy group, a silyl group, a boron group, an alkyl group, a cycloalkyl group, an alkenyl group, an aralkyl group, an aralkenyl group, an alkylaryl group, an alkylamine group, an aralkylamine group, a heteroarylamine group, an arylamine group, an arylphosphine group, and a hetero-cyclic group; a biphenyl group, which is unsubstituted or substituted with one or more substituents selected from the group consisting of deuterium, a halogen group, a nitrile group, a nitro group, a hydroxy group, a carbonyl group, an ester group, an imide group, an amino group, a phosphineoxide group, an alkoxy group, an aryloxy group, an alkylthioxy group, an arylthioxy group, an alkylsulfoxy group, an arylsulfoxy group, a silyl group, a boron group, an alkyl group, a cycloalkyl group, an alkenyl group, an aryl group, an aralkyl group, an aralkenyl group, an alkylaryl group, an alkylamine group, an aralkylamine group, a heteroarylamine group, an arylamine group, an arylphosphine group, and a hetero-cyclic group; a naphthyl group, which is unsubstituted or substituted with one or more substituents selected from the group consisting of deuterium, a halogen group, a nitrile group, a nitro group, a hydroxy group, a carbonyl group, an ester group, an imide group, an amino group, a phosphineoxide group, an alkoxy group, an aryloxy group, an alkylthioxy group, an arylthioxy group, an alkylsulfoxy group, an arylsulfoxy group, a silyl group, a boron group, an alkyl group, a cycloalkyl group, an alkenyl group, an aryl group, an aralkyl group, an aralkenyl group, an alkylaryl group, an alkylamine group, an aralkylamine group, a heteroarylamine group, an arylamine group, an arylphosphine group, and a hetero-cyclic group; or a phenanthryl group, which is unsubstituted or substituted with one or more substituents selected from the group consisting of deuterium, a halogen group, a nitrile group, a nitro group, a hydroxy group, a carbonyl group, an ester group, an imide group, an amino group, a phosphineoxide group, an alkoxy group, an aryloxy group, an alkylthioxy group, an arylthioxy group, an alkylsulfoxy group, an arylsulfoxy group, a silyl group, a boron group, an alkyl group, a cycloalkyl group, an alkenyl group, an aryl group, an aralkyl group, an aralkenyl group, an alkylaryl group, an alkylamine group, an aralkylamine group, a heteroarylamine group, an arylamine group, an arylphosphine group, and a hetero-cyclic group,

L is a substituted or unsubstituted phenylene; or a substituted or unsubstituted biphenylylene,

R3 and R4 are the same as or different from each other, and each independently hydrogen; deuterium; a halogen group; a nitrile group; a nitro group; a hydroxy group; a carbonyl group; an ester group; an imide group; an amino group; a substituted or unsubstituted silyl group; a substituted or unsubstituted boron group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted aryloxy group; a substituted or unsubstituted alkylthioxy group; a substituted or unsubstituted arylthioxy group; a substituted or unsubstituted alkylsulfoxy group; a substituted or unsubstituted arylsulfoxy group; a substituted or unsubstituted alkenyl group; a substituted or unsubstituted aralkyl group; a substituted or unsubstituted aralkenyl group; a substituted or unsubstituted alkylaryl group; a substituted or unsubstituted alkylamine group; a substituted or unsubstituted aralkylamine group; a substituted or unsubstituted arylphosphine group; or a substituted or unsubstituted phosphineoxide group,

m is an integer of 1 to 5,

a is an integer of 0 to 3, and

b is an integer of 0 to 4, and

when m, a, and b are each 2 or more, the structures in the parenthesis are the same as or different from each other.

2. The compound of claim 1 , wherein L is any one selected from the following structures:

the structures are optionally unsubstituted or substituted with one or more substituents selected from the group consisting of deuterium; a halogen group; a nitrile group; a nitro group; a hydroxy group; a carbonyl group; an ester group; an imide group; an amino group; a phosphineoxide group, an alkoxy group; an aryloxy group; an alkylthioxy group; an arylthioxy group; an alkylsulfoxy group; an arylsulfoxy group; a silyl group; a boron group; an alkyl group; a cycloalkyl group; an alkenyl group; an aryl group; an aralkyl group; an aralkenyl group; an alkylaryl group; an alkylamine group; an aralkylamine group; a heteroarylamine group; an arylamine group; an arylphosphine group; and a hetero-cyclic group.

3. The compound of claim 1 , wherein L is phenylene; or biphenylylene.

4. The compound of claim 1 , wherein Ar1 and Ar2 are the same as each other, and a phenyl group, which is unsubstituted or substituted with one or more substituents selected from the group consisting of deuterium and an alkyl group; a biphenyl group, which is unsubstituted or substituted with one or more substituents selected from the group consisting of deuterium, an alkyl group, and an aryl group; a naphthyl group, which is unsubstituted or substituted with one or more substituents selected from the group consisting of deuterium, an alkyl group, and an aryl group; or a phenanthryl group, which is unsubstituted or substituted with one or more substituents selected from the group consisting of deuterium, an alkyl group, and an aryl group.

5. The compound of claim 1 , wherein R3 and R4 are hydrogen.

6. The compound of claim 1 , wherein the compound of Formulae 6 or 7 is any one selected from the following compounds:

7. An organic light emitting device, comprising:

a first electrode;

a second electrode provided to face the first electrode; and

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

wherein one or more layers of the organic material layers comprise the compound of claim 1 .

8. The organic light emitting device of claim 7 , wherein the organic material layer comprising the compound is a hole injection layer, a hole transporting layer, or a layer which simultaneously injects and transports holes.

9. The organic light emitting device of claim 7 , wherein the organic material layer comprising the compound is an electron injection layer, an electron transporting layer, or a layer which simultaneously injects and transports electrons.

10. The organic light emitting device of claim 7 , wherein the organic material layer comprising the compound is a light emitting layer.