A display device may include a display area; a non-display area including a driver circuit area; a first transistor disposed in the display area, the first transistor including a first semiconductor layer, a first gate electrode, a first source electrode, and a first drain electrode; a second transistor disposed in the driver circuit area, the second transistor including a second semiconductor layer, a second gate electrode, a second source electrode, and a second drain electrode; and a first insulating film disposed between the second gate electrode and the second source electrode and between the second gate electrode and the second drain electrode; an anode electrode electrically connected to the first drain electrode; and a light-blocking layer overlapping the first semiconductor layer and disposed on the first insulating film. The light-blocking layer, the second source electrode, and the second drain electrode may be disposed on the same layer.