Display module and display device

A display module comprising:

• an image light generation device configured to generate image light;
• a first diffraction element including a first surface and a second surface and configured to diffract the image light;
• a first reflection section configured to reflect the image light;
• and
• a second diffraction element including a third surface and configured to diffract the image light, wherein
• the first diffraction element is configured to transmit the image light incident on the first surface from the image light generation device and emit the image light from the second surface toward the first reflection section,
• the first reflection section is configured to reflect the image light emitted from the first diffraction element toward the second surface of the first diffraction element,
• the first diffraction element is configured to diffract the image light incident on the second surface from the first reflection section and emit the image light from the second surface toward the second diffraction element, and
• the second diffraction element is configured to diffract the image light incident on the third surface from the first diffraction element, and emit the image light from the third surface, thereby forming an exit pupil.