US Patent 9557806 Power save mode in electronic apparatus

This document discloses a solution for employing a power-save mode in an electronic device providing, in a display unit, a plurality of home screens and a mechanism to switch from one home screen to another home screen in response to a user input received through user input means of the electronic device. At least one of the home screens is a home screen for a power-save mode of the electronic apparatus and, upon detecting a user input causing a switch to the home screen for the power-save mode, the electronic device switches on at least some of the power-save features of the electronic device.