TRANSPARENT SUPPORTED ELECTRODE FOR AN OLED

摘要

An OLED electrode includes a transparent or translucent non-conductive substrate, with a refractive index between 1.3 and 1.6. A continuous network of lines of a metal or alloy with electrical conductivity at least 5·106 S·m−1 is on a substrate surface. The metal lines have an average width between 0.05 and 3μm. These metal lines delimit non-metalized fields of average equivalent diameter between 0.1 and 7.0μm. At least 20% of the metal lines' surface has a tangent forming an angle between 15 and 75° relative to a substrate-electrode plane. A transparent or translucent layer completely covers the metal lines and non-metalized fields. The layer has refractive index between 1.6 and 2.4 and resistivity greater than that of the metal lines and less than 104Ω·cm. The metal lines and the transparent or translucent layer form a composite layer called an electrode layer.