DISPLAY DEVICE

A display device (1000) includes a display panel (100) with a light emitting area from which a light exits is defined and an input sensor (200) disposed on the display panel (100). The input sensor (200) includes a first conductive layer (200-2), a first insulating layer (200-3) disposed on the first conductive layer (200-2) and provided with a diffraction grating (GR) defined therein to correspond to the light emitting area, and a second conductive layer (200-4) disposed on the first insulating layer (200-3) and connected to the first conductive layer (200-2). The first insulating layer (200-3) includes an organic layer (200-3a) covering the first conductive layer (200-2) and an inorganic layer (200-3b) disposed on the organic layer (200-3a). The organic layer and the inorganic layer (200-3a, 200-3b) include a plurality of holes (DFP) defined therein to define the diffraction grating (GR).