Patent ID: 8766241

Claim:
An organic light-emitting device comprising: a substrate having an emission region in which pixels are arranged and a peripheral region which surrounds the emission region, thin film transistors arranged in the emission region of the substrate, a planarization film which is composed of a resin and which planarizes the thin film transistors, an element separation film which defines pixels formed on the planarization film, and an organic EL element including at least a first electrode, a light-emitting layer, a charge transport layer containing any one of alkali metals and alkaline-earth metals, and a second electrode, which are disposed on the planarization film within each of the pixels, wherein the charge transport layer extends to outside of the emission region so as to cover the side surface of a peripheral portion of the planarization film, which is disposed in the peripheral region, the planarization film being formed in the emission region, wherein the planarization film is divided by a dividing region provided in the peripheral region, and wherein the charge transport layer extends to the peripheral region so as to cover the dividing region of the substrate and a side surface of the planarization film on the drive circuit, the side surface being disposed in the dividing region.