| 摘要 |
In a method of manufacturing an organic EL device, when a light-emitting layer is formed, an ink composition for the organic EL device, including an organic light-emitting material and at least one type of a high boiling point solvent having a boiling point of 200° C. or more, is ejected onto a substrate having an electrode, or upon a hole injection/transport layer formed on the substrate having the electrode. Then, the ink composition is heat-treated while the residue of the high boiling point solvent remains. Hence, the method can provide an organic EL device that has a long lifetime and superior emissive properties, such as stability of emission luminance.
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