Pic courtesy: buzzorange Retrieved August 28, 2017, https://buzzorange.com/techorange/2017/08/21/universiade-large-screen/
During the opening ceremony of Taipei 2017 Universiade, the performance on the huge screen attracted so much attention! The screen is so unbreakable and high resolution that it did not turn black when hundreds of people performed on it. Amazing, right? What kind of projection technology can create such effect? While it is not a projection, it is a floor made by a giant screen.

Pic courtesy: buzzorange Retrieved August 28, 2017, https://buzzorange.com/techorange/2017/08/21/universiade-large-screen/
The screen is made of more than thousands pieces of LED modules and coupled with a layer of acrylic material to protect the modules. It can resist water and even the dust. The dimension of the screen is about 1200 square meters (40 meters by 30 meters. ) It is also the world's first largest screen that amazed all the players.
According to the Central News Agency, the design director pointed out that the LED usually present in a vertical way. This time they challenged themselves to turned LED into a floor which they must overcome the problem of space perspective. She also revealed that the staff had to test and reassemble the screen before the opening and closing ceremony to achieve the "zero flaws." "There are uncountable cables under the screen." "It is very touching that the team can work together to complete these tasks.", said she.
Reference: https://buzzorange.com/techorange/2017/08/21/universiade-large-screen/