A display device including a casing, a guiding track, a sliding element
and a holder is provided. The casing has a first surface and a second
surface. The guiding track is disposed on the second surface. The sliding
element is movably coupled with the guiding track. The holder is
corresponding to the sliding element and disposed on the first surface
for clamping an article. The sliding element and the holder are
magnetically attracted with each other. The sliding element and the
holder are synchronized when sliding along the guiding track for
adjusting the position of the article on the display device.