Light-Emitting Device, Light-Emitting Appliance, Display Device, Electronic Appliance, and Lighting Device
A light-emitting device with high emission efficiency and reliability is provided. The light-emitting device includes a fluorescent light-emitting layer and a phosphorescent light-emitting layer. A host material used in the fluorescent light-emitting layer has a function of converting triplet excita...
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Format: | Patent |
Sprache: | eng |
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