Abstract: Disclosed is an advertising device which is installed at the top of a bus running a route. The disclosed advertising device displays an optimized advertisement according to a position of the bus in which the same is installed. In addition, the advertising device displays an advertisement in association with another advertising device installed at the top of another bus and thereby can maximize the advertising effectiveness.

Abstract: An outdoor advertisement structure on a bus roof of the present invention can hide the untidiness of a heating, ventilation and air conditioning (HVAC) system and the like mounted on the bus roof by a rectangular-shaped advertisement structure (10) since the advertisement structure (10) of which upper and lower parts are open and the four surrounding surfaces thereof are connected, is mounted on a bus roof (1) to cover an HVAC system (3) mounted on the bus roof (1) such that the HVAC system (3) is not exposed to the outside and to simultaneously provide a mounting area for traffic information notification and advertisements, wherein a front light guide panel (20) and a side light guide panel (22) for traffic information notification and advertisement are respectively mounted on a front part (12) and both side parts (14) of the advertisement structure (10), and thereby providing a balance between the bus and a cityscape by finishing the exterior appearance state of the bus roof (1) to be relatively aesthetical