A display system, comprising: a display device, configured to display a plurality of images; and an image transmission device, configured to transmit light of at least two images of the plurality of images through different paths and to respectively form at least two virtual images corresponding to the at least two images of the plurality of images, wherein an imaging position of at least one of the at least two virtual images is variable; the plurality of images comprise a first image and a second image, the at least two virtual images comprise a first virtual image and a second virtual image, the first image corresponds to the first virtual image, and the second image corresponds to the second virtual image; the image transmission device comprises a first image receiving element and a second image receiving element, the first image receiving element is configured to receive light of the first image and present a first display image; and the second image receiving element is configured to receive light of the second image and present a second display image; the first virtual image is a 3D image and comprises at least two sub-virtual images for presenting a 3D effect, and the at least two sub-virtual images are respectively projected at different visual distances; characterized in that, the first image receiving element comprises a plurality of polymer dispersed liquid crystal layers which are stacked sequentially along a transmission path of the light of the first image, and at least two polymer dispersed liquid crystal layers of the plurality of polymer dispersed liquid crystal layers are capable of being controlled to be in a diffusion state to form the at least two sub-virtual images; the image transmission device further comprises a light conversion element; in a case where the light conversion element is in a first conversion state, the light conversion element is configured to receive the light of the first image and convert the light of the first image into first polarized light, and the first image receiving element is configured to receive the first polarized light and present the first display image; in a case where the light conversion element is in a second conversion state, the light conversion element is configured to receive the light of the second image and convert the light of the second image into second polarized light, and the second image receiving element is configured to receive the second polarized light and present the second display image; a polarization direction of the first polarized light and a polarization direction of the second polarized light are different. a display device, configured to display a plurality of images; and an image transmission device, configured to transmit light of at least two images of the plurality of images through different paths and to respectively form at least two virtual images corresponding to the at least two images of the plurality of images, wherein an imaging position of at least one of the at least two virtual images is variable; the plurality of images comprise a first image and a second image, the at least two virtual images comprise a first virtual image and a second virtual image, the first image corresponds to the first virtual image, and the second image corresponds to the second virtual image; the image transmission device comprises a first image receiving element and a second image receiving element, the first image receiving element is configured to receive light of the first image and present a first display image; and the second image receiving element is configured to receive light of the second image and present a second display image; the first virtual image is a 3D image and comprises at least two sub-virtual images for presenting a 3D effect, and the at least two sub-virtual images are respectively projected at different visual distances; characterized in that, the first image receiving element comprises a plurality of polymer dispersed liquid crystal layers which are stacked sequentially along a transmission path of the light of the first image, and at least two polymer dispersed liquid crystal layers of the plurality of polymer dispersed liquid crystal layers are capable of being controlled to be in a diffusion state to form the at least two sub-virtual images; the image transmission device further comprises a light conversion element; in a case where the light conversion element is in a first conversion state, the light conversion element is configured to receive the light of the first image and convert the light of the first image into first polarized light, and the first image receiving element is configured to receive the first polarized light and present the first display image; in a case where the light conversion element is in a second conversion state, the light conversion element is configured to receive the light of the second image and convert the light of the second image into second polarized light, and the second image receiving element is configured to receive the second polarized light and present the second display image; a polarization direction of the first polarized light and a polarization direction of the second polarized light are different.