ORGANIC ELECTROLUMINESCENT ELEMENT, ORGANIC EL ILLUMINATION, AND ORGANIC EL DISPLAY DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a white light emitting organic electroluminescent element including a emissive layer that comprises two or more layers containing different luminescent materials respectively and is formed by a wet film-forming method, and furthermore to provide a white light emitting organic electroluminescent element low in a driving voltage and high in current efficiency.

SOLUTION: In an organic electroluminescent element including an anode, a cathode, and a emissive layer between the anode and the cathode, the emissive layer includes adjacent two layers formed using a composition containing a luminescent material and a solvent by means of a wet film-forming method. Each of the adjacent two layers contains a different luminescent material with each other and satisfies a specified parameter.

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