The organic raw material is vaporized to generate the raw material gas in the vaporizing chamber. This raw material gas is mixed with the carrier gas, and transported to the chamber through the raw material gas transportation pipe. The substrate is held within the chamber while the organic film formation surface of the substrate does not face downward in a vertical direction straight up from the ground. The injector of the raw material gas is opposed to the substrate. The raw material gas is blasted from the direction orthogonal to the substrate. Particles fall without adhering to the substrate when holding the substrate in the vertical direction. The deformation of the substrate and the mask for separately painting pixels can be suppressed.