Illuminated glazing element with a coated reflective structure for light coupling

An illuminated glazing element, comprising a transparent layer having a first surface and a second surface and a light source for generating light, which is arranged in such a way that the light is radiated into the transparent layer via the second surface,

• wherein a reflective structure having a reflective surface is formed in the first surface or is fastened to the first surface, wherein the reflective surface has a plurality of portions inclined to the second surface and is configured in such a way that the light radiated into the transparent layer is reflected at the reflective surface and is at least partially coupled back into the transparent layer at an angle of coupling that is suitable for the coupled light to propagate in the transparent layer,
• and wherein the reflective surface is provided with a reflective coating that comprises, starting from the reflective surface, in the following order:
• a primer layer and
• a reflective layer based on a metal or a metal alloy.