The invention discloses a display module. A display screen comprises a first butt joint edge, a second butt joint edge and a display body located between the first butt joint edge and the second buttjoint edge. The first butt joint edge and the second butt joint edge are located in a space defined by the display body. The display body comprises a first curved surface display area and a second curved surface display area. The first curved surface display area is connected with the first butt joint edge; the first curved surface display area is connected with the first butt joint edge, the second curved surface display area is connected with the second butt joint edge, the first curved surface display area and the second curved surface display area form a groove, and the refraction light guide part is fixed in the groove and refracts light emitted by the first curved surface display area and the second curved surface display area to the plane where a groove opening of the groove is located. According to the scheme, the problem that a curved surface display area at the butt joint of display screens of existing electronic equipment cannot be displayed on a plane can be solved. The invention discloses a display screen control method and device, electronic equipment and a computer readable storage medium.