LED shows a lot of domains in socioeconomy have wide application. In the numerous application field LED Lights shows in LED, handing in those who communicate message to show is one of domains of among them fundamental application, especially the arrival of information age, the development of intelligent traffic system, in the traffic field that serves for social community, the issuance of information becomes serious service content, of all kinds information shows equipment becomes road of the airport, railway station, dock, public transportation station, freeway, town, parking lot to wait for the dominant measure that faces the public to release information, among them, LED shows with its the characteristic such as tall brightness, high reliability is favorred. LED is one of indication methods of intelligent traffic system intelligent traffic system (IntelligentTrans-portationSystem, abbreviation ITS) points to face the public or special the intelligence that gets numerous group to offer integrated traffic information to serve changes information system. Intelligence changes traffic information to served a system to include news source, information processing and information to release commonly show wait for a part, among them issuance shows basically is to use all sorts of multimedia to show equipment, if LED shows screen, LCD indication screen, CRT indication screen, PDP,show screen to wait. Contemporary information shows technical progress, the information that formed the series such as CRT, LCD, PDP, LED, EL, DLP shows a product. Review the progress of of all kinds indication product, 14 inches are LCD takes dominant place below, 14 inches - 32 inches are it is dominant with CRT, 40 inches - 70 inches even 100 inches of markets that will be PDP, 100 inches of above, no matter be indoor,still be outdoor, LED displays screen with absolutely advantage predominate product. In carriage industry of our country transportation, opposite for, indication system of information of airport airliner trends is formed in the system, the respect such as indication terminal precedes quite on the whole; Railroad passenger guides information to show systematic getaway is earlier, give priority to with LED and CRT on indication method tradition, development is rapid in recent years, system and net of couplet of system of passenger transport automation, show admirable intelligence to change a standard; Revulsive system is in road transportation rapid and arisen, in be in development and perfect process, as a result of the environmental characteristic of road transportation, LED shows indicate a shift for main message. LED shows is road transportation revulsive system basically releases carrier road liaison man revulsive system is modern city intelligence the important traffic information in changing traffic management system serves a system, the system is handled in real time and analyse traffic trends situation, by the command that dominates a center the policymaker carries artificial or automatic kind, be released external and show state of traffic information, road to wait, decrease jam degree, increase road traffic capacity. In practice, the traffic that faces the public is revulsive information is commonly release below the environment outdoor, the Gao Liang that shows as a result of LED spends a characteristic, multiform LED shows become liaison man the issuance with revulsive main message carrier. Revulsive LED indication means has common liaison man traffic is revulsive LED displays screen (alterable information board) , revulsive method shows liaison man card, jockey mark of demonstrative card, alterable label. Traffic is revulsive the LED outdoor shows information, according to the requirement that road transportation runs and traffic revulsive information releases shown real case, the following characteristic has on particular use function: Gao Liang is spent, the perspective is reasonable; Indication color with red, green, Huang Wei advocate; Indication brightness is automatic and adjustable; Round-the-clock work, ambient conditions is complex; Control remotely, intelligence detects; Demand of sex of security, real time, accuracy, dependability is high. LED shows in traffic domain foreground capacious the ceaseless promotion as material technology, widened the applied limits of LED. Look into the application that traffic domain LED shows, the following respects are worth to pay close attention to: Traffic incandescent lamp wants fast 80ns, on the freeway travel can increase 4 meters of safety to 6 meters to be apart from. Wait for a characteristic as a result of environmental protection of report of the aseismatic performance with good LED, section, green, car illume, lamp acts the role of the application that wait to also can have good progress. At present domestic and international the car manufacturer of a lot of brands been beginninging to use LED brake lamp, instrument panel lamp and floodlight. Urban road transportation revulsive, mark in escalate road revulsive LED shows traffic to be in in each cities rapid growth, product technology development is rapid. In product type respect, revulsive LED indication screen still is traffic at present mainstream product, but label of all sorts of simple, economy, practical alterable traffic information indicates kind of product will gain ground and form dominant. 2010 world rich of 2008 Olympic Games of Beijing, Shanghai can bring development turning point Beijing Olympic Games was mixed 2008 Shanghai world rich met 2010 hold, show for LED bring tremendous business chance. In urban traffic domain, the market that LED shows will have increase significantly.
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