| 摘要 |
PROBLEM TO BE SOLVED: To provide an organic EL element capable of preventing a short circuit between electrodes, and having good light extraction efficiency. SOLUTION: The organic electroluminescent element 1 comprises: a lower electrode 3 formed on a substrate 2; an organic layer 4 formed on the lower electrode 3; and a light-transmitting upper electrode 5 formed on the organic electrode 4. The organic electroluminescent element is characterized by that the lower electrode 3 comprises: a reflecting layer 3a formed of a metal material; and a buffer layer 3b on top of it; and the buffer layer 3b is formed of ITO, IZO, SnO<SB>2</SB>, ZnO, CdO, TiO<SB>2</SB>or a transparent conductive material similar to them. When the buffer layer is formed of ITO, its film thickness is set to 2 to 30 nm. The reflecting layer 3a is preferably formed of silver or an alloy containing silver as a main constituent. COPYRIGHT: (C)2004,JPO&NCIPI
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