| 摘要 |
PROBLEM TO BE SOLVED: To realize an organic electroluminescent element having improved driving durability by changing the element composition. SOLUTION: For the organic electroluminescent element comprising a pair of electrodes composed of a positive electrode 2 and a negative electrode 7 and at least more than one layer of organic layers 4, 5, 6 laid between the above, a positive electrode interface thin film layer 3 made of a specific compound or a material having a specific nature is formed between the positive electrode 2 and the organic layer. By the above, the organic electroluminescent element having improved driving durability in comparison with a previous element, concretely, the electroluminescent element restrained from the lowering of brightness and the increase of driving voltage at the continuous driving, is obtained. COPYRIGHT: (C)2003,JPO
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