LRS is an LED display unit which is born for grand stage screen construction. It can help to establish a giant rich layer color gorgeous stage displayed experience faster and better. It has made many specific designs for the giant screen construction to make sure the maximum 20-meter height screen safety and flatness with 0.2-millimeter matching precision. The refined locking system will speed up the installation process largely. LRS adheres to the design principle of functionalism. All appearance forms are expressions of product functions. Polygon elements were selected to adapt to this style to enhance awareness of the attribute of science.