An extended-height DIMM for use in a memory system having slots designed to receive DIMMs that comply with a JEDEC standard that specifies a maximum height for the DIMM and a maximum number of devices allowed to reside on the DIMM. The method includes the use of a bicontinuous lipidic phase. The light emitting structure includes a first conductive type semiconductor layer, an active layer, and a second conductive type semiconductor layer that are disposed on a top surface of the substrate. According to the invention, to characterize the distortions created by the high-voltage supply circuit, a model capable of delivering, as a function of the video signal of the images to be displayed, a signal representative of the variations in the output voltage of the high-voltage supply circuit while these images are being displayed.