As illustrated in FIG. 10(a) and FIG. 10(b), each of the light-emitting elements 80R and 81R includes: the first electrode (the hole-injection layer: the HIL) 22; the second electrode (the electron-injection layer: the EIL) 25; and the light-emitting layer 24c, of the first wavelength range, provided between the first electrode 22 and the second electrode 25. Between the second electrode 25 and the light-emitting layer 24c of the first wavelength range, the oxide layer (the ETL) 74a; namely, an electron-transport layer, and the oxide layer 74b are stacked one another in the stated order from toward the second electrode 25. As will be described later, a density of oxygen atoms in the oxide layer (the ETL) 74a is lower than a density of oxygen atoms in the oxide layer 74b. Note that, between the light-emitting layer 24c of the first wavelength range and the first electrode 22, an oxide layer (an ETL) 24a is provided.
