Shopping malls have always been one of the most densely populated places in the city, so major brands attach great importance to brand promotion in such places. In addition to directly opening stores for operation, the most direct way is to install LED screens on the top, columns and walls of the shopping malls for publicity. Because of the better lighting conditions in the shopping malls, If the contrast and resolution of the screen are not good, the publicity effect is likely to be greatly reduced, so such places have strict requirements on the screen display effect of LED screens. At the same time, the security of LED screens will also be tested due to the crowded shopping center. Figure 1 is the R5 product case of a shopping center in Guangzhou, China, and Figure 2 is the R1 series product case of a shopping center in Singapore.
