An organometallic compound represented by Formula 1 emits deep blue light. A light-emitting device including the organometallic compound, and an electronic apparatus including the light-emitting device may have excellent or suitable driving voltage, luminescence efficiency, color conversion efficiency, and/or lifespan characteristics:

##STR00001##

In Formula 1, X.sub.1 to X.sub.4 are each independently C or N, Y.sub.11 is C(Z.sub.11) or N, and Y.sub.12 is C(Z.sub.12) or N.

An organic electroluminescence device of an embodiment includes a first electrode, a second electrode facing the first electrode, and organic layers disposed between the first electrode and the second electrode, wherein the organic layers include at least one organic layer that includes a fused polycyclic compound represented by Formula 1, thereby showing improved emission efficiency.

##STR00001##

An organic electroluminescence device of an embodiment includes a first electrode, a second electrode facing the first electrode, and organic layers disposed between the first electrode and the second electrode, wherein the organic layers include at least one organic layer that includes a fused polycyclic compound represented by Formula 1, thereby showing improved emission efficiency.

##STR00001##

The present invention relates to compounds of formula (1) which are suitable for use in electronic devices: ##STR00001##

The present specification provides a benzocarbazole-based compound of chemical formula 1 and an organic light-emitting device comprising same. The benzocarbazole-based compound as a material of an organic material layer of the organic light emitting device provides enhanced efficiency, low driving voltage and increased lifetime. ##STR00001##

The present specification provides a benzocarbazole-based compound of chemical formula 1 and an organic light-emitting device comprising same. The benzocarbazole-based compound as a material of an organic material layer of the organic light emitting device provides enhanced efficiency, low driving voltage and increased lifetime. ##STR00001##

Provided is an organic light emitting device, comprising: an anode; a cathode disposed opposite to the anode; and one or more organic material layers disposed between the anode and cathode, the organic material layer including a light emitting layer that includes a compound of Chemical Formula 1 and a compound Chemical Formula 2: ##STR00001## wherein: one of R.sub.21, R.sub.22, R.sub.23, and R.sub.24 is -L.sub.21-Ar.sub.1, and the remaining are hydrogen; and one of R.sub.31, R.sub.32, R.sub.33, and R.sub.34 is -L.sub.22-Ar.sub.2, and the remaining are hydrogen; excluding compounds where: R.sub.21 is -L.sub.21-Ar.sub.1 and R.sub.31 is -L.sub.22-Ar.sub.2, R.sub.22 is -L.sub.21-Ar.sub.1 and R.sub.32 is -L.sub.22-Ar.sub.2, R.sub.23 is -L.sub.21-Ar.sub.1 and R.sub.33 is -L.sub.22-Ar.sub.2, or R.sub.24 is -L.sub.21-Ar.sub.1 and R.sub.34 is -L.sub.22Ar.sub.2; L.sub.21 and L.sub.22 each is a single bond, or a substituted or unsubstituted C.sub.6-60 arylene; X.sub.2 is O or S; and Ar.sub.1 is Chemical Formula 3: ##STR00002##

Provided is an organic light emitting device, comprising: an anode; a cathode disposed opposite to the anode; and one or more organic material layers disposed between the anode and cathode, the organic material layer including a light emitting layer that includes a compound of Chemical Formula 1 and a compound Chemical Formula 2: ##STR00001## wherein: one of R.sub.21, R.sub.22, R.sub.23, and R.sub.24 is -L.sub.21-Ar.sub.1, and the remaining are hydrogen; and one of R.sub.31, R.sub.32, R.sub.33, and R.sub.34 is -L.sub.22-Ar.sub.2, and the remaining are hydrogen; excluding compounds where: R.sub.21 is -L.sub.21-Ar.sub.1 and R.sub.31 is -L.sub.22-Ar.sub.2, R.sub.22 is -L.sub.21-Ar.sub.1 and R.sub.32 is -L.sub.22-Ar.sub.2, R.sub.23 is -L.sub.21-Ar.sub.1 and R.sub.33 is -L.sub.22-Ar.sub.2, or R.sub.24 is -L.sub.21-Ar.sub.1 and R.sub.34 is -L.sub.22Ar.sub.2; L.sub.21 and L.sub.22 each is a single bond, or a substituted or unsubstituted C.sub.6-60 arylene; X.sub.2 is O or S; and Ar.sub.1 is Chemical Formula 3: ##STR00002##

The present invention relates to compounds, which are suitable for use in electronic devices, and to electronic devices, in particular organic electroluminescent devices, containing said compounds.

The present invention relates to compounds suitable for use in electronic devices, and to electronic devices, especially organic electroluminescent devices, comprising these compounds.