ORGANIC LIGHT-EMITTING DIODE WITH OUTPUT OPTIMISED BY CONFINEMENT OF PLASMONS AND DISPLAY DEVICE COMPRISING A PLURALITY OF SUCH DIODES

An organic light-emitting diode includes a first electrode, a stack of semiconductor organic layers comprising at least one electroluminescent organic layer, the stack being deposited above the first electrode, and a second electrode deposited on a surface of the stack, the surface being opposite the first electrode, wherein the first electrode comprises at least one region, making electrical contact with the stack of semiconductor organic layers, having a geometry suitable for allowing the excitation of a localized plasmon mode at the emission wavelength of the electroluminescent organic layer. Display device comprising a plurality of such diodes sharing a stack of semiconductor organic layers. Process for manufacturing such a diode and such a display device is also provided.