Display module and display device

The utility model provides a display module and a display device, and belongs to the technical field of display. The display module is provided with a display area and an opening area; the display device is characterized in that the display area comprises a first display area and a second display area, and the second display area is located between the first display area and the hole opening area and surrounds the hole opening area; the display module comprises a substrate, a plurality of sub-pixel units arranged on the substrate and located in a first display area, a plurality of redundant sub-pixel units located in a second display area, and a via hole located in a hole opening area. The redundant sub-pixel units isolate the sub-pixel units from the via holes; each redundant sub-pixel unit comprises a redundant sub-pixel and a redundant pixel driving circuit arranged corresponding to the redundant sub-pixel; and when the control electrodes of the redundant switch transistors in at least part of the redundant pixel driving circuits are loaded with working levels, the data voltage signals cannot be written in.