A sealing structure (200) seals a light emitting unit (140) and includes a first inorganic film (210), a second inorganic film (220), a first resin-containing film (230), and a second resin-containing film (240). The film thickness of the first inorganic film (210) is equal to or greater than 1 nm and equal to or less than 300 nm. The first resin-containing film (230) is in contact with the first inorganic film (210) and includes a first resin. The second inorganic film (220) is positioned on an opposite side of the first inorganic film (210) with the first resin-containing film (230) interposed between the first and second inorganic films. The second resin-containing film (240) is positioned between the first resin-containing film (230) and the second inorganic film (220) and is in contact with the second inorganic film (220). The second resin-containing film (240) includes a second resin.