| 摘要 |
PROBLEM TO BE SOLVED: To provide an organic EL element that can be driven at low voltage without impairing durability. SOLUTION: This is an organic EL element that comprises a plurality of film layers between a positive electrode 2 and a negative electrode 6. The film layers comprise at least a hole transporting layer 3, a luminous layer made of an organic substance, and an electron transporting layer 5. Each layer is formed of mutually different materials, and the luminous layer has at least a bilayer structure of a dope layer 8 in which a guest material carrying out light-emission is doped in a host material and a non-dope layer 7 which does not contain the guest material made of principally the above host material. COPYRIGHT: (C)2004,JPO&NCIPI
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