CROSS-REFERENCE TO RELATED APPLICATION(S)

This application claims the benefit of priority from Korean Patent Application No. 10-2017-0063092, filed May 22, 2017, the full disclosure of which is incorporated herein by reference.

TECHNICAL FIELD

The present disclosure relates to a novel compound and an organic light emitting device comprising the same.

BACKGROUND ART

In general, an organic light emitting phenomenon refers to a phenomenon where electric energy is converted into light energy by using an organic material. The organic light emitting device using the organic light emitting phenomenon has characteristics such as a wide viewing angle, an excellent contrast, a fast response time, an excellent luminance, driving voltage and response speed, and thus many studies have proceeded.

The organic light emitting device generally has a structure which comprises an anode, a cathode, and an organic material layer interposed between the anode and the cathode. The organic material layer frequently have a multilayered structure that comprises different materials in order to enhance efficiency and stability of the organic light emitting device, and for example, the organic material layer may be formed of a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, an electron injection layer and the like. In the structure of the organic light emitting device, if a voltage is applied between two electrodes, the holes are injected from an anode into the organic material layer and the electrons are injected from the cathode into the organic material layer, and when the injected holes and the electrons meet each other, an exciton is formed, and light is emitted when the exciton falls to a ground state again.

There is a continuing need for the development of new materials for the organic materials used in such organic light emitting devices,

RELATED ART

Patent Literature

(Patent Literature 0001) Korean Patent Laid-open Publication No. 10-2000-0051826

DETAILED DESCRIPTION OF THE DISCLOSURE

Technical Problem

It is an object of the present disclosure to provide a novel compound and an organic light emitting device comprising the same.

Technical Solution

In order to achieve the above objects, the present disclosure provides a compound represented by Chemical Formula 1 below:



wherein, in Chemical Formula 1,

X1to X3is each independently N, or CH, and at least one of X1to X3is N,

Ar1and Ar2are each independently a substituted or unsubstituted C6-60aryl; or a substituted or unsubstituted C2-60heteroaryl containing one or more heteroatoms selected from the group consisting of N, O and S;

L is a bond; or a substituted or unsubstituted C6-60arylene, and

Ar3is a substituted or unsubstituted C6-60aryl; or a substituted or unsubstituted C2-60heteroaryl containing one or more heteroatoms selected from the group consisting of N, O and S.

The present disclosure also provides an organic light emitting device comprising a first electrode; a second electrode provided at a side opposite to the first electrode; and at least one layer of the organic material layers provided between the first electrode and the second electrode, wherein the at least one layer of the organic material layers includes a compound represented by Chemical Formula 1.

Advantageous Effects

The compound represented by the Chemical Formula 1 can be used as a material of an organic material layer of an organic light emitting element, and can achieve an improvement of the efficiency, a low driving voltage and/or an improvement of the lifetime characteristic when applied to the organic light emitting device.

