US Patent 10394316 Multiple display modes on a mobile device

A display control system for controlling visual features on a mobile device, according to one embodiment, includes a display screen disposed on a front side of the mobile device and configured to display at least one user interface element for a user. A front-facing camera disposed on the front side of the mobile device is configured to sense characteristics of the eyes of the user. A processing device processes these characteristics to determine a corresponding point on the display screen where the eyes of the user are directed. A user interface control unit switches the display screen from a regular display mode to a detailed display mode when it is determined that the corresponding point on the display screen where the eyes are directed coincides with a specific user interface element. The detailed display mode includes supplemental information related to the specific user interface element.