LED display screen

The utility model provides an LED display screen, which comprises a COB module, the COB module comprises a substrate, a plurality of pixel points and a packaging layer, the plurality of pixel points are arranged on the upper surface of the substrate and are arranged in an array to form a pixel group, the packaging layer is arranged on the upper surface of the substrate to package the pixel group on the substrate, and the packaging layer is arranged on the upper surface of the substrate and is used for packaging the pixel group on the substrate. The substrate and the packaging layer form a big-end-up trapezoid body, pixel points located on the edges of the pixel groups are separated from the edges of the adjacent trapezoid bodies, the COB modules are spliced to form the LED display screen, and a temperature seam is formed between the side walls of the trapezoid bodies of every two adjacent COB modules. According to the COB module disclosed by the invention, the pixel points on the edges of the pixel groups hav