| 摘要 |
PROBLEM TO BE SOLVED: To provide a functional layer for protecting a light-emitting element from deteriorating due to physical or chemical influences, when the light emitting element is manufactured or driven, and to attain prolongation of the lifetime of the element and improvement in the element characteristics, without increasing the drive voltage, or degrading transmittance and color purity by providing such a functional layer. SOLUTION: In the light emitting element formed by interposing a light-emitting substance containing layer between a pair of electrodes, a buffer layer made of a composite material for a light-emitting element, including aromatic hydrocarbon containing at least one vinyl skeleton and metal oxide in part of the light-emitting substance containing layer is provided. The composite material for a light-emitting element, containing aromatic hydrocarbon and metal oxide containing at least a vinyl skeleton, has high conductivity and is superior also in transparency. COPYRIGHT: (C)2007,JPO&INPIT
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