A display module includes first, second and third parts. The first part includes a first display area. The second part includes a second display area. The third part is between the first and second parts and includes a folding axis. The third part moves from a first position to a second position when a force is applied. The first part folds over the second part along the folding axis to block the entire second display area when the third part is in the first position. The first part is offset relative to the second part to allow a portion of the second display area to be exposed to display an image when the third part is in the second position.