An organic light-emitting device includes, on an insulating layer (101), a first lower electrode (102), an upper electrode (110), and an organic compound layer (104) between the first lower electrode and the upper electrode, wherein the organic compound layer includes a first light-emitting layer, a second light-emitting layer between the first light-emitting layer and the upper electrode, and a first organic compound layer between the first light-emitting layer and the second light-emitting layer, the first organic compound layer includes a second organic compound layer containing an alkali metal, and a third organic compound layer disposed between the second organic compound layer and the upper electrode and containing a compound having a lowest unoccupied molecular orbital level energy of -5.0 eV or less, and an orthogonal projection of the first organic compound layer onto the insulating layer is smaller than that of the first light-emitting layer onto the insulating layer.