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Digital signage is a form of out-of-home advertising in which content and messages displayed on an electronic screen, or digital sign, can be changed without modification to the physical sign, typically with the goal of delivering targeted messages to specific locations at specific times. Digital signage offers superior return on investment compared to traditional printed signs[1]. Digital signs may be scrolling message boards, LCD or plasma display panels, electronic billboards, projection screens, or other emerging display types like living surfaces or Organic LED screens (OLEDs) that can be controlled electronically using a computer or other devices, allowing individuals or groups to remotely change and control their content (usually via the Internet).
The content displayed on digital signage screens can range from simple text and still images to full-motion video, with or without audio. Some operators of digital signage networks, particularly in the retail industry, regard their networks as comparable to television channels, displaying entertaining and informational content interspersed with advertisements (see also Retail Media).
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