In the information age and the rapid development of intelligent transportation system today, in the field of transportation for the public service, the dissemination of information becomes an important service content, and all kinds of information display devices become the leading means for the public to release information to the airport, railway station, wharf, bus station, Expressway, Expressway service area, Urban road, parking lot and so on. Among them, LED display with its high brightness, high reliability, long life, low power consumption and other characteristics favored.
There are two types of display bodies commonly used on highways: a type of dual-color display, for red and green double color, 256 levels of gray, can display 65536 colors; the other is full color display, for the red, green, blue three primary colors, 256 levels of gray color display can display more than 16 million color.
In order to reduce the traffic congestion and the frequency of traffic accidents, to improve the operation condition and existing safety guarantee system of expressway, reduce the delay and loss caused by traffic accident, traffic jam and two accidents, crowding, we should give full play to the function of expressway information releasing system, and escort the safe, high speed and smooth running of expressway.