US 2002/0009978 · Filed 2000-12-29

Units for displaying information on vehicles

A vehicle display unit is designed to be carried by an automotive vehicle. Some such units are designed for mounting on the roof of a car, bus, or other vehicle. Others are designed to be mounted in other locations on or in a vehicle, such as, for example, on the side of a car, truck, or bus. Such a display unit can include components such as an one or more electronic displays; display drive circuitry, which can include a computer; a connection for receiving power from the electrical system of a vehicle; an enclosure around the one or more displays and their drive circuitry which has ventilation openings; and a ventilation fan for moving cooling air through the enclosure. The electronic displays can have 640×480 or greater resolution. Some roof-mounted embodiments have three electronic displays arranged in a triangle, with two displays each visible from the front and one side of the vehicle, and the third display visible from the behind the vehicle. Some roof-mounted embodiments include an enclosure for their display(s) and drive circuitry; one or more roof protectors having a weight distributing surface shaped to fit the curved roof of a vehicle on which they are mounted; and a plurality of mountings supported by the one or more roof protectors for suspending the enclosure in a position spaced above the roof, which mounting includes vibration isolators, for at least partially isolating the enclosure from vibration of the vehicle roof.

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