| 摘要 |
PROBLEM TO BE SOLVED: To provide an organic electroluminescent element which has a high luminous efficiency (a low-drive voltage, low power consumption, or the like) and appropriate drive durability. SOLUTION: In the organic electroluminescent element which has at least one layer of an organic compound layer including a luminous layer between a pair of electrodes, at least a layer of the organic compound layer contains at least one type of 3,3'-bi-indole that has substituent or has been substituted and a 3,3'-bi-carbazole compound. COPYRIGHT: (C)2007,JPO&INPIT
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