VEHICLE DISPLAY DEVICE

A vehicle display device includes: a first sensor (microphone) that senses a vehicle interior; a region decider that decides a detection region which is a region for detecting a fallen object; a determiner that determines, based on the result of the sensing performed by the first sensor, whether an object has fallen; and a controller that decides display content based on a determination that the object has fallen and the detection region, and the controller causes a display to display the display content decided by the controller.