The text displayed on an Android device when the screen is locked serves as a customizable information point. This feature allows users to show pertinent details such as contact information in case the device is lost or found, display motivational quotes, or simply personalize their device with a message.
This functionality provides a crucial layer of security and accessibility. It offers a means of potential recovery for lost devices by displaying owner contact details. Furthermore, it adds a personal touch to the device, allowing users to express themselves beyond the standard interface. Its origin lies in the evolution of mobile operating systems striving for increased user customization and functionality.