A background light is a lighting element positioned to illuminate the area behind the subject in a visual scene, helping to define space and enhance depth.
In commercial AV, broadcast, and video production, background lighting is aimed at the area or backdrop behind the subject rather than at the subject itself. Its purpose is to separate the subject from the environment, reduce flatness, and improve overall scene composition. Background lights can highlight architecture, branding, or set design to reinforce the visual narrative without distracting from the main subject. Unlike a back light, which defines subject edges, a background light enhances the space itself. In corporate AV environments such as boardrooms, control centers, and studios, it helps maintain consistent image quality for live or recorded content.
While not directly governed, practices in background lighting are shaped by AVIXA (Audiovisual and Integrated Experience Association) and SMPTE (Society of Motion Picture and Television Engineers).
Background lighting techniques developed alongside stage and broadcast production, where separating subjects from their environments improved clarity for audiences. These methods now extend into modern AV spaces, supported by LED and smart lighting systems for precise control.