LED displays, Displays

For a long time LED displays are used even at stadiums or internal platforms, during sports, and now there are special displays which are called perimeters which perfectly are suitable for such actions. It is fine alternative to old types of a board which works much easier and does not demand such efforts in operation. Also on sports grounds, and during concerts and other actions, such device as a media cube which has the form of a cube and four screens playing video to all sides of the hall is rather popular. What to say about how such screens are popular as advertizing billboards - only dynamic.