Abstract: The present subject matter describes illuminating a display panel. In an example implementation, a plurality of light guide films is stacked together, with a light guide film positioned over another light guide film of the plurality of light guide films. Each of the light guide films of the plurality is associated with a light source. The light source for a respective light guide film is to launch light through at least one light incident surface of the respective light guide film, where the light guide assembly is to guide light from the light source to illuminate the display panel.