According to one embodiment, a display device comprises a first substrate including a gate line extending in the first direction, and a source line extending in a second direction, and a second substrate opposed to the first substrate. The second substrate includes a first light-blocking layer which opposed to the gate line, and a second light-blocking layer which opposed to the source line. Wherein, a subpixel is formed at a position defined by the gate line and the source line, and the color layer has a first width in the first direction, the first width is greater than a width of the subpixel, and the color layer has a lager width than the first width at a overlapping position on the first light-blocking layer.