the present invention provides a method which can form a uniform amorphous film using an organic low molecular weight material which is refined by distillation or sublimation . the viscosity of ink is regulated by mixing two kinds of solvents so as to increase a surface tension of the ink and the solubility of the organic material in a drying step whereby an amorphous film made of an organic material is selectively formed in a recessed region defined by a partition wall layer using an ink jet method .