METHOD FOR PRODUCING AN ORGANIC LIGHT-EMITTING DIODE DEVICE HAVING A STRUCTURE WITH A TEXTURED SURFACE AND RESULTING OLED HAVING A STRUCTURE WITH A TEXTURED SURFACE

摘要

The invention relates to a method for producing an organic light-emitting diode device bearing a structure with a textured external surface (20, 30) and comprising a mineral glass substrate (10) forming the base of the organic light-emitting diode device. The method for the production of the structure with the textured external surface comprises the following steps: the vapour deposition on the mineral glass substrate (10) of a first dielectric layer (2) with a thickness of at least 300 nm and at a temperature greater than or equal to 100ºC, such as to form protrusions (20); the deposition on the first layer of a second dielectric smoothing layer (3) having a refractive index greater than or equal to that of the first layer (2) and made from an essentially amorphous material, such as to smooth the protrusions sufficiently and form the textured external surface (30); and the deposition directly on the smoothing layer of an electrode in the form of layer(s), such as to form a surface that substantially matches the smoothed external surface (30).