Patent ID: 8736161

Claim:
A light-emitting device comprising: an organic layer which is interposed between a first electrode and a second electrode and in which a first light-emitting layer and a second light-emitting layer emitting light of single colors or two or more different colors in a visible wavelength region are sequentially included at mutually separated positions in that order in a direction from the first electrode to the second electrode; a first reflective interface which is provided on the side of the first electrode so as to reflect light emitted from the first light-emitting layer and the second light-emitting layer; and a second reflective interface and a third reflective interface which are sequentially provided on the side of the second electrode at mutually separated positions in that order in a direction from the first electrode to the second electrode, wherein, an optical distance between the first reflective interface and the first light-emitting layer is set so that light having a central wavelength of an emission spectrum of the first light-emitting layer is reinforced through interference between the first reflective interface and the first light-emitting layer, and an optical distance between the first reflective interface and the second light-emitting layer is set so that light having a wavelength of an emission spectrum of the second light-emitting layer is reinforced through interference between the first reflective interface and the second light-emitting layer.