Although 3 September military parade has been the past few days but there are many people add “like” to this parade. And now let discuss the development of China’s LED technology from the led display changes from Tiananmen square. 
2009National Day parade: This is the first time set up large LED display in the center of Tiananmen Square for festival celebrations and playing promotional video during national vacation,  also for he square into a modern science and technology elements, increasing the festive atmosphere
2010:   The two LED displays on both sides of Monument to the People's Heroes were upgraded. After transformation, the new screen are 40.96 meters long, 5.12 meters high, with a total area of 209.715㎡, the dot pitch has upgraded from 16mm to 12mm
2015  To protect the September 3 Chinese People's Anti-Japanese War and the World Anti-Fascist War 70th anniversary of the victory parade in Tiananmen Square BOTH sides of the road to build a large-scale LED big screen, big screen together with the base height of about 18 meters, 26 meters wide, pixel pitch 10mm the entire approximately 360 square meters screen and totally cost 11.49 million RMB.