US Patent 11524581 Image output device for vehicle displaying timeline of events

The present invention provides an image output device which is mounted on a vehicle and a control method therefor. The image output device comprises a display and a processor which controls the display to output a timeline that displays events occurring while a vehicle is being driven, wherein the display is divided into a first area and a second area on the basis of the timeline, and the processor classifies the events into a first group and a second group according to a predetermined reference and controls the display to display a first graphic object navigating an event included in the first group on the first area, and display a second graphic object navigating an event included in the second group on the second area.