| 摘要 |
<p>The present invention provides a light emitting diode using multiple light emitting dopants wherein the multiple light emitting dopants emits light harmoniously with high light emitting efficiency. Moreover, the present invention provides a light emitting device, a display device, an electronic device, and a lighting device with reduced power consumption by using the light emitting diode. The light emitting diode having a light emitting layer where multiple light emitting layers, which are including different light emitting materials, are stacked characterizes in that the light emitting layer including a light emitting material, which is indicating the light emitting of a long wave length, comprises two kinds of carrier transport compounds with different transport polarities and the triplet excitation energy of a host material included in the light emitting layer of a short wavelength is higher than the triplet excitation energy of one or all of the carrier transport compounds.</p> |
