Display module and display screen

The utility model relates to the technical field of display screens, and provides a display module and a display screen, the display module comprises a box body frame, the box body frame comprises a power supply box and a plurality of sub-frames located on the left side and the right side of the power supply box, and the sub-frames on each side are sequentially arranged in the vertical direction; the plurality of display modules are in one-to-one correspondence with the plurality of sub-frames, driving circuits and mounting parts of the display modules are arranged in the left and/or right side areas, and hole structures for sound transmission are uniformly distributed in the middle areas of the display modules; and the display module is mounted on the corresponding sub-frame through the mounting piece in the left and/or right side area. According to the utility model, the sound transmission area can be increased, the sound transmission effect is improved, the display screen is suitable for being spliced into