The display panel DP may contact (or be attached to) the joint units JU by an attractive force generated by the magnetic layer MC disposed on the lower surface of the display panel DP and the surface of the joint units JU. Accordingly, the display panel DP may be effectively supported by the joint units JU.

In an exemplary embodiment, as described above, the joint units JU may include a metal material. In such an embodiment, the magnetic layer MC provided on the joint units JU may be omitted. In such an embodiment, where the magnetic layer MC provided on the joint units JU is omitted, the joint units JU that includes the metal material may be allowed to contact the display panel DP due to the magnetic layer MC disposed on the lower surface of the display panel DP.

FIGS. 22 to 31 are views showing guide grooves and joint units of a display device and various locations of a third driving unit according to various exemplary embodiment of the disclosure.

For convenience of illustration and description, FIGS. 22, 23, 27, 28, and 29 show an inner side surface corresponding to that shown in FIG. 12. The configuration of the display device according to exemplary embodiments of the disclosure shown in FIGS. 22, 23, 27, 28, and 29 is substantially the same as the configuration of the display device DD described with reference to FIGS. 1 to 20 except for a configuration of guide grooves GG_1 and GG_2, a configuration of joint units JU_1 and JU_2, and an arrangement position of the third driving unit DU3.