Car Display System

Onboard display system includes a display device, respectively (8, 38), means (12, 42) two display sets (5, 35) control. A first control means (12) displays a first group (5) comprises: a first acquisition section (26) acquires a first control means itself a first operating state; a second state acquisition section (30) acquires second a second operating state a second control means (42) of the display set (35); and a state determining section (32), based on a first operating state and a second operating state, determines whether or not the display priority state; and an image updating unit (34 ), when the display priority state, the image constituting the image displayed on the first display means displays a first group (8) along the time axis to be updated, the display priority state when it is not, updating the image rests.