Patent ID: 8841151

Claim:
A method of manufacturing a light emission device based on light emitting diodes, the method comprising: forming a support in the form of a heat exchanger, the support having an electrically insulating face; forming a first electrode on the electrically insulating face of the support; growing semiconducting light-emitting nanowires on the first electrode; encapsulating the semiconducting light-emitting nanowires in a planarising material; forming, on the planarising material, a second electrode configured to at least partially transmit the light emitted by the semiconducting light-emitting nanowires; forming, on the second electrode, electrical contact areas for taking up electrical contact; forming the light emitting diodes by: releasing bands of the first electrode around each electrical contact area, including: forming a mask defining the bands on the surface of the second electrode; conducting a first chemical etching of the planarising material, and then stopping the first chemical etching so as to preserve planarising material on the first electrode; conducting a second chemical etching of a portion of the semiconducting light-emitting nanowires released from the planarising material during the first chemical etching; and then conducting a third chemical etching of the planarising material remaining at the end of the first chemical etching, forming a trench along each of the bands as far as the electrically insulating face of the support; and then placing the light emitting diodes in series by electrically connecting the electrical contact areas and the bands of the first electrode.