A liquid crystal display device includes a first substrate and a second substrate disposed in opposition. The first substrate includes gate lines, data lines, pixel electrodes, and an insulating film being superimposed, in plan view, over the gate lines, the data lines, and the pixel electrodes. The second substrate includes a first colored portion transmitting light of a first color, a second colored portion transmitting light of a second color, and a light-shielding portion disposed in a boundary area between the first colored portion and the second colored portion, for blocking transmittance of light of the first color and light of the second color. The insulating film includes a first portion overlapping, in plan view, the first colored portion or the second colored portion, and a second portion overlapping, in plan view, the light-shielding portion and being of thicker film thickness than the first portion.