Display device

A display device comprising:

• an optical waveguide comprising an optical waveguide body and a light outputting section disposed on the optical waveguide body;
• M lens assemblies disposed adjacent to an end of the optical waveguide body, wherein at least two lens assemblies of the M lens assemblies have different focal lengths, and M is a natural number greater than one;
• and
• M display screens corresponding to the M lens assemblies in one-to-one correspondence, each of the M display screens being configured to emit light with image information through a corresponding lens assembly to the optical waveguide body for transmission;
• wherein the light outputting section is configured to output the light from the M display screens out of the optical waveguide body for imaging, the light from the M display screens forms M images, respectively, and at least two images of the M images have different image distances, and
• wherein the optical waveguide further comprises M coupling sections which are disposed at the end of the optical waveguide body, the M lens assemblies correspond to the M coupling sections in one-to-one correspondence, each of the M lens assemblies is configured to transmit light from a corresponding display screen to a corresponding coupling section, and each of the M coupling sections is configured to couple light from a corresponding display screen into the optical waveguide body at a corresponding incident angle for transmission.