The present invention discloses a display device and a backlight module. The display device includes a display panel and a backlight module. The display panel is used for displaying images and passing light rays. The backlight module includes a light source and a light source providing board. The light source providing board is used for providing first light rays and passing second light rays. The light source providing board includes a light ray input interface, a light ray providing unit, and a light ray transmittance channel. The present invention can make a viewer see an object behind the display device.