An organic electroluminescence device includes a first emitting layer and a second emitting layer provided between an anode and a cathode, in which the first emitting layer contains, as a first host material, a first compound represented by a formula (1) below and having at least one group represented by a formula (11) below, and the second emitting layer contains a second host material.

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The present disclosure relates to an organic electroluminescent compound represented by formula 1 and an organic electroluminescent device comprising the same. By comprising an organic electroluminescent compound according to the present disclosure, it is possible to produce an organic electroluminescent device having improved current efficiency and/or lifetime properties.

The present invention is directed to benzo diphenyl fluorene compound, represented by formula (I).

An organic electroluminescent device includes at least two light-emissive units provided between a cathode electrode and an anode electrode opposed to the cathode electrode, each of the light-emissive units including at least one light-emissive layer. The light-emissive units are partitioned from each other by at least one charge generation layer, the charge generation layer being an electrically insulating layer having a resistivity of not less than 1.0?10.sup.2 ? cm.

The present invention relates to a compound of the formula (I), to the use of this compound in an electronic device, and to an electronic device comprising one or more compounds of the formula (I). The invention furthermore relates to the preparation of the compound of the formula (I) and to a formulation comprising one or more compounds of the formula (I).

An organic electroluminescent device includes at least two light-emissive units provided between a cathode electrode and an anode electrode opposed to the cathode electrode, each of the light-emissive units including at least one light-emissive layer. The light-emissive units are partitioned from each other by at least one charge generation layer, the charge generation layer being an electrically insulating layer having a resistivity of not less than 1.0?10.sup.2 ?cm.

An organic electroluminescent device includes at least two light-emissive units provided between a cathode electrode and an anode electrode opposed to the cathode electrode, each of the light-emissive units including at least one light-emissive layer. The light-emissive units are partitioned from each other by at least one charge generation layer, the charge generation layer being an electrically insulating layer having a resistivity of not less than 1.0?10.sup.2 ?cm.

A light emitting element and an amine compound for the light emitting element are provided. The light emitting element includes a first electrode, a second electrode provided on the first electrode, and at least one functional layer provided between the first electrode and the second electrode and including an amine compound represented by a specific formula structure, and may thus have improved element service life (i.e., lifespan) and efficiency.

Provided are a compound of Chemical Formula 1, a coating composition including the compound, an organic light emitting device using the coating composition, and a manufacturing method thereof,

##STR00001## wherein all the variables are described herein.

The present specification provides a heterocyclic compound represented by Chemical Formula 1 and an organic light emitting device comprising the same.