Method for preparing OLED display device

The invention belongs to the technical field of novel flat panel display, and particularly relates to a method for preparing an OLED display device. The method comprises the following steps of: (1) preparing an OLED display device substrate; (2) preparing a TiNx thin film anode layer by employing a magnetron sputtering method, and covering the substrate with the anode layer; (3) preparing an organic light-emitting layer on the surface of the anode layer, and preparing a transparent cathode layer on the surface of the organic light-emitting layer; (4) forming a polymer nano-spinning pattern byelectrostatic spinning in a polymer solution, coating a transparent adhesive on the polymer nano-spinning pattern to form a composite film scattering layer, and attaching the composite film scatteringlayer to one side of the transparent cathode layer; and (5) forming a hydrophobic layer selectively coating the surface of the composite film scattering layer on the surface of the composite film scattering layer in an inkjet