a first substrate having an upper surface and a lower surface facing the upper surface, the upper surface including a display surface;

an active layer disposed on the lower surface of the first substrate, the active layer including a channel part, a first connection part connected to a first side of the channel part, and a second connection part connected to a second side of the channel part;

a gate electrode disposed under the active layer and overlapping with the channel part;

a first electrode connected to a first surface of the first connection part of the active layer;

a second electrode connected to a second surface of the first connection part of the active layer;

a third electrode connected to the second connection part of the active layer;

a second substrate disposed under the gate electrode;

a liquid crystal layer disposed between the first substrate and the second substrate; and

a backlight disposed under the second substrate,

wherein the gate electrode is disposed between the channel part and the backlight, and

wherein the first electrode is disposed between the first substrate and the active layer.