The embodiment of the invention discloses a display device. The display device comprises a base, a shell, a display screen, at least one buckle structure and at least one extension mechanism, the display device comprises a first working state and a second working state; in the first working state, the second display part is accommodated in the accommodating unit, the extension mechanism is in a contraction state, and the shell is fixed on the base; and in the second working state, the second display part is in the unfolded state, the extension mechanism is in the unfolded state, and the shellis separated from the base, so that the effect of improving the portability of the large-screen display device and the user experience is achieved.