The act of enabling a feature that restricts the viewing angle of a mobile device’s display is intended to prevent onlookers from seeing the screen’s content. This functionality is implemented through a variety of methods, ranging from software-based filters to physical screen protectors. For instance, a user might access device settings to activate a system-level option designed to limit screen visibility to those directly in front of it.
Restricting the visibility of a mobile device’s display offers increased security in public environments, safeguarding sensitive information from unauthorized observation. This is particularly relevant in settings such as public transport, crowded cafes, or shared workspaces, where visual privacy is paramount. Historically, privacy concerns have driven the development of technological solutions aimed at mitigating the risk of information leakage through screen viewing.