Scope 
 ■ stadiums, Town Square, the convention center's dynamic display and live broadcast; 

 ■ airports, railway stations, ports, terminals and other transportation information display; 

 ■ government agencies, industrial and commercial tax policies, decrees and other distribution and display the contents of government affairs; 

 ■ banks, postal services, telecommunications, hospitals, electricity and other services sectors, services, the purpose of publicity and information display; 

 ■ road traffic information display; 

 ■ shopping malls, advertising and media services business promotion and information display; 

 ■ other sectors of the publishing market conditions.