Patent ID: 8618536

Claim:
An organic light-emitting element, comprising: an organic electroluminescence layer including a pair of electrodes and an organic light-emitting layer disposed between the pair of electrodes; a thin-film transistor layer formed below the organic electroluminescence layer, being electrically connected to one electrode of the pair of electrodes, and causing the organic electroluminescence layer to emit light; and a planarization film disposed between the organic electroluminescence layer and the thin-film transistor layer, planarizing irregularities in an upper portion of the thin-film transistor layer such that the organic electroluminescence layer is formed over a planarised surface, wherein the planarization film is made up of a silicon oxide monolayer, and the planarization film made up of the silicon oxide monolayer is formed through: using a predetermined liquid phase film formation method to apply a silicon-bearing organic solvent to the upper portion of the thin-film transistor layer and to planarize an upper surface of the silicon-bearing organic solvent, thus forming a silicon-bearing organic solvent film; heating a predetermined solvent that includes a material having heat-increased oxidizing power to obtain a heated solvent; and discharging the heated solvent onto the silicon-bearing organic solvent film having a planarised upper surface, wherein the heated solvent dissolves organic components in the silicon-bearing organic solvent film while at least silicon in the silicon-bearing organic solvent film remains, and the silicon that remains undergoes liquid phase oxidation by the heated solvent.