| 摘要 |
An organic electroluminescent device is provided to ensure high brightness and excellent stability and durability, to enable size enlargement, to be easily manufactured, and to create fewer defects during the production of the device. An organic electroluminescent device has a pair of positive and negative electrodes of which at least one electrode is transparent or translucent, and an organic compound layer interposed between the positive and negative electrodes. The organic compound layer comprises at least two layers including at least a buffer layer and an electroluminescent layer. At least one layer except the buffer layer of the organic compound layer contains at least one charge-transporting polyester represented by the following formula (I-1) and formula (I-2). The buffer layer is provided to contact the positive electrode, and contains a crosslinkable compound formed by using at least one charge injection material having a substituted silicon group represented by the following formula (III).
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