An electronic apparatus including a substrate; an organic light-emitting device disposed on the substrate; and a thin film encapsulation portion sealing the organic light-emitting device and including at least one organic film is presented. The organic film includes a cured product of a composition for forming an organic film, the composition including a curable material and an ultraviolet (UV) absorber, wherein the curable material includes at least one selected from an acryl-based material, a methacryl-based material, an acrylate-based material, a methacrylate-based material, a vinyl-based material, an epoxy-based material, a urethane-based material, and a cellulose-based material, and the organic light-emitting device includes a first electrode, a second electrode, an emission layer between the first electrode and the second electrode, and a hole transport region between the first electrode and the emission layer. The emission layer includes a compound shown below, and the hole transport region includes a diamine compound: