Device for improving the quality of an image covered with a semitransparent photovoltaic film

A device comprising:

• an image configured to be illuminated by incident light and to reflect at least a part of said light;
• and
• a photovoltaic sheet arranged adjacent to a surface of the image that receives the incident light, said photovoltaic sheet being arranged at a non-zero distance above the surface of the image and including (i) luminous transparent areas and (ii) areas covered with photovoltaic cells, one side of the photovoltaic cells being oriented toward the image and configured to receive the part of said light reflected by said image,
• wherein the entire non-zero distance between the photovoltaic sheet and the surface of the image consists of one of (i) only air and (ii) only a transparent solid material, and
• wherein said one side of the photovoltaic cells oriented toward the image (i) is white in color, and (ii) increases a luminosity of said image seen by an observer through the transparent areas by reflecting more than 30% of the part of the light it receives, as reflected by said image, back toward the image.