Display module and display device

The utility model discloses a display module and a display device. The display module comprises a lateral light source, a first polaroid, a first prism and a light guide plate; the lateral incidence type light source comprises at least one row of multiple light-emitting devices arranged in the first direction, and the vibration transmission direction of the first polaroid is parallel to the first direction; the surface, facing the first polaroid, of the first prism is provided with a plurality of first protruding edges extending in the second direction, and the included angle between the vibration transmission direction of the first polaroid and the second direction is set to be 70-110 degrees. The display device comprises the display module. According to the display module, the vibration transmission direction of the first polaroid is parallel to the arrangement direction of the light emitting devices, and the first polaroid and the first convex edge on the first prism are arranged at an angle, so that the polarization direction of polarized light in light output by the light guide structure is consistent with the vibration transmission direction of the first polaroid; therefore, the light penetrating through the first polaroid is increased, the brightness of the display module can be improved, and the display effect of the display module is improved.