OPTOELECTRONIC DEVICE COMPRISING PIXELS WITH IMPROVED CONTRAST AND BRIGHTNESS

摘要

The invention relates to an optoelectronic device (10) comprising a substrate (12) having first and second opposite faces (14, 16) and lateral electrical insulation elements (18) extending into the substrate and delimiting electrically insulated first semiconducting or conducting portions (20). The optoelectronic device comprises, for each first portion, an assembly (D) of light-emitting diodes electrically connected to the first portion. The optoelectronic device comprises an electrode layer (36) covering all the light-emitting diodes, a protective layer (40) covering the electrode layer, and walls (42) extending into the protective layer and delimiting the second portions surrounding or facing the assemblies (D) of light-emitting diodes. The walls contain at least one material included in the group comprising: air, a metal, a semiconductor material, a metal alloy and a partially transparent material, and a core made from at least partially transparent material covered by an opaque or reflective layer.