US Patent 10452106 Foldable device and controlling method thereof

A foldable device including a first body supporting a first display region; a second body supporting a second display region; a sensor configured to sense a folding angle between the first body and the second body; an actuator configured to change the folding angle; and a controller configured to control the actuator to increase the folding angle between the first body and the second body without user physical pressure in response to a first predetermined input, and control the actuator unit to decrease the folding angle between the first body and the second body without user physical pressure in response to a second predetermined input.