US Patent 11880060 Large format solar sign

The systems and methods of the present disclosure provide connectable tiles that can form a self-contained illuminated sign of potentially unlimited size. The self-contained illuminated sign can include one or more tiles. A tile can include a diffusion film having a surface to be illuminated. The tile can include a light guide plate coupled to the diffusion film. The light guide can be configured to evenly distribute light through the diffusion film. The tile can include a solar panel coupled to the light guide. The solar panel can capture light that passes through the diffusion film and the light guide. The tile can include a light source positioned adjacent to the light guide that receives stored electrical power from a battery electrically coupled to the solar panel. The tile can include a connector configured to attach the tile to a second tile.