Method for transferring light-emitting structures

Method for transferring electroluminescent structures formed on a face, referred to as the front face, of a supporting substrate and separated from each other by tracks, the method comprising the following successive steps:

• a) formation of an intermediate layer provided with first regions, made from a first material covering a face, referred to as the electroluminescent face, of the electroluminescent structures, and reflective walls formed in trenches above the tracks and separating said first regions, said walls comprising a metal film covering at least the sides of the trenches as well as a second material covering the metal film and filling in said trenches;
• b) assembling the intermediate layer and a face, referred to as the temporary face, of a temporary substrate;
• c) at least partial removal of the supporting substrate;
• d) transfer of the electroluminescent structures onto a face, referred to as the accommodating face, of the accommodating substrate,
• at least one of the first and second materials being intended to provide adhesion between the intermediate layer and the temporary face.