A display device includes: a display panel; an input sensor disposed on the display panel; a flexible circuit board connected to the display panel and the input sensor; a first differential signal line and a second differential signal line, which are disposed on the flexible circuit board and connected to the display panel; and a transmission line and a receiving line, which are disposed on the flexible circuit board and connected to the input sensor. In a plan view, the receiving line is disposed between the first differential signal line and the second differential signal line.