Display module and display device

A display device, comprising:

• a host and a display module;
• wherein the display module comprises:
• a display panel, a first printed circuit board, and a flexible printed circuit board;
• wherein the display panel is electrically connected to the first printed circuit board, the first printed circuit board is disposed at a back of the display panel, and the flexible printed circuit board comprises a first connecting portion, a second connecting portion, and a flexible connecting structure, wherein the flexible connecting structure comprises a plurality of stacked connecting bands, two ends of the flexible connecting structure are connected to the first connecting portion and the second connecting portion respectively, the first connecting portion is connected to the first printed circuit board, and the second connecting portion is configured to be connected to the host;
• wherein each of the connecting bands has a first side face and a second side face, a thinning groove is disposed in the first side face of at least one of the connecting band, and the first side face of the connecting bands is opposite to the second side face of an adjacent connecting band in a stacking direction;
• and
• wherein the display device further comprises a hollow rotation shaft, one end of the hollow rotation shaft is connected to the display module, the other end of the hollow rotation shaft is movably mounted on the host, and the connecting band is disposed within the hollow rotation shaft.