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

• Main Authors: VERMERSCH FRANCOIS JULIEN, NGHIEM BERNARD, LE BELLAC DAVID
• Format: Patent
• Language: English; Korean
• Published: 25.01.2012
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; SEMICONDUCTOR DEVICES

A process for manufacturing an organic light-emitting diode device bearing a structure having a textured outer surface including a substrate made of inorganic glass that forms the support of the organic light-emitting diode device, includes: manufacturing the structure having a textured outer surface including: vapor depositing, onto the substrate made of inorganic glass, a first dielectric layer of at least 300 nm in thickness at a temperature greater than or equal to 100° C. so as to form protrusions, depositing onto the first layer a second smoothing dielectric layer, having a refractive index greater than or equal to that of the first layer, and made of an essentially amorphous material so as to sufficiently smooth the protrusions and to form the textured outer surface, and depositing, directly onto the smoothing layer, an electrode in the form of layer(s), so as to form a surface that conforms substantially to the smoothed outer surface.