Heterocyclic compound and organic light-emitting element comprising same

1. A compound represented by the following Formula 1:

in Formula 1,

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,

L is an unsubstituted phenylene; or an unsubstituted biphenylylene,

R1 and R2 are the same as or different from each other, and each independently an alkyl group; or an aryl group, which is unsubstituted or substituted with one or more substituents selected from the group consisting of deuterium, a halogen group, an alkyl group, and an alkoxy group,

R3 and R4 are the same as or different from each other, and each independently hydrogen; deuterium; or one or two separate fused benzene rings provided that two or more R3s or R4s combine with each other,

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

provided that 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 Formula 1 is represented by any one of the following Formulae 2 and 4:

in Formulae 2 to 4,

the definition of Ar1, Ar2, L, R3, R4, a, b, and m is the same as defined in Formula 1,

R11 and R12 are the same as or different from each other, and each independently deuterium, a halogen group, an alkyl group, an alkoxy group, or an aryl group,

X1 and X2 are the same as or different from each other, and each independently an alkyl group;

r11 and r12 are the same as or different from each other, and each independently an integer of 0 to 5, and

provided that r11 and r12 are each 2 or more, the structures in the parenthesis are the same as or different from each other.

3. The compound of claim 1 , wherein Formula 1 is represented by any one of the following Formulae 5 to 8:

in Formulae 5 to 8,

the definition of Ar1, Ar2, L, R1 to R4, m, a, and b is the same as defined in Formula 1.

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

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

6. The compound of claim 1 , wherein the

moiety is any one selected from the following structures:

in the structures,

the definition of R1 and R2 is the same as defined in Formula 1, and

the structures may be unsubstituted or substituted with deuterium.

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

8. 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 .

9. The organic light emitting device of claim 8 , 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.

10. The organic light emitting device of claim 8 , 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.

11. The organic light emitting device of claim 8 , wherein the organic material layer comprising the compound is a light emitting layer.