Method and structure for improving light emitting rate of bottom-emission organic electroluminescent device

The invention discloses a method for improving the light emitting rate of a bottom-emission organic electroluminescent device. The method comprises the steps of step one, roughening the surface of a template; step two, coating materials for manufacturing a scattering film on the toughened surface of the template, curing an OLED (Organic Light Emitting Diode) to be the scattering film, and then separating the scattering film and the template; and the step three, attaching the scattering film on the outer surface of a substrate. A structure for improving the light emitting rate of the bottom-emission organic electroluminescent device comprises a metallic cathode, an electronic transmission layer, an organic light emitting layer, a hole transmission layer, an ITO (Indium-Tin-Oxide) cathode, the substrate and the scattering film, wherein the scattering film comprises a rough surface and a smooth surface, and the smooth surface is attached on the outer surface of the substrate. The invention relates to a technology for improving the light emitting rate of the organic light emitting device, and has the advantages that the scattering film can be changed conveniently, the manufacturing is simple, the standard volume production is easy, the light emitting rate is high, and the like.