LED full-color screen mosaic installation: 1) The entire LED full-color screen is embedded in the wall, and the display plane is at the same level as the wall 2) Generally, a simple box design is used 3) Generally, front maintenance (front maintenance design) is used 4) This installation method , used both indoors and outdoors, but generally used for screens with small pitches and small display areas. 5) Generally, it is mostly used at the entrance of the building, the lobby of the building, etc. .