The present invention relates to a display device that provides a virtual image to a user. The display device may include a hologram optical element positioned on a path of light emitted from the display panel. The display panel may emit light having a different peak wavelength range. In the hologram optical element, a reflection angle or a refractive angle may be recorded differently according to a peak wavelength range. Accordingly, the display device according to the technical concept of the present invention can provide a plurality of virtual images having different focal lengths to a user without physical movement or mechanical movement of the display panel.
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