| 摘要 |
Provided is an organic EL device capable of maintaining an excellent luminous efficiency over an extended period of time, particularly in a top emission-type EL device. The organic EL device of the invention includes a substrate and an organic EL element formed on the substrate. The organic EL element is composed of a bottom electrode, an organic EL layer, a top electrode and a protective layer. The protective layer is composed of one or a plurality of inorganic films, and at least one of the one or plurality of inorganic films is an SiON:H film having stretching-mode peak area ratios, as determined by infrared absorption spectroscopy, that include an absorption area ratio of N-H bonds to Si-N bonds in the SiON:H film which is not less than 0.04 but not more than 0.07 and an absorption area ratio of Si-H bonds to Si-N bonds which is not more than 0.15.
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