| 摘要 |
This invention provides an organic electroluminescent element comprising two opposed electrodes connected to an external circuit for applying electrical energy, at least one of the electrodes being transparent or semitransparent, and provided between the electrodes, a plurality of luminescent units, for emitting light through recombination of holes with electrons, each comprising one or more organic layers, one of the organic layers being a luminescent layer, and a charge generation layer held between two of the plurality of luminescent units, characterized in that each two adjacent luminescent units in the plurality of luminescent units are partitioned by the charge generation layer, the charge generation layer comprises at least one metal or its compound (A) having a work function of not more than 3.0 eV and at least one compound (B) having a work function of not less than 4.0 eV, and in at least one of the plurality of luminescent units, the luminescent layer contains a polymeric luminescent material.
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