DISPLAY DEVICE THAT APPEARS TO LEVITATE

Provided are a display device that appears to be floating in space, and an operating method thereof. The display device includes a frame unit (120) and a panel unit (110), wherein the frame unit includes a power receiver (121), which receives power from an external power unit (410), and a wireless power transmitter (122) configured to wirelessly transmit power to a wireless power receiver (111) in the panel unit. The panel unit includes a display configured to receive the power from the wireless power receiver and display an image.