| 摘要 |
PROBLEM TO BE SOLVED: To provide a white organic light-emitting device with high efficiency having a structure to suppress energy transfer, allowing diffusion of triplet energy from a fluorescent light-emitting layer to a phosphorescent light-emitting layer. SOLUTION: The white organic light-emitting device is provided with an anode electrode, a first phosphorescent light-emitting layer formed on the anode electrode, a blue fluorescent light-emitting layer formed on the first phosphorescent light-emitting layer, and a second phosphorescent light-emitting layer formed on the blue fluorescent light-emitting layer, and has a triplet energy of a host of the blue fluorescent light-emitting layer to be higher than the triplet energy the of dopants of the first and the second phosphorescent light-emitting layers. COPYRIGHT: (C)2009,JPO&INPIT
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