A liquid crystal display device according to the present invention
includes: a first substrate; a second substrate disposed so as to be
closer to a viewer than the first substrate is; a liquid crystal layer
provided between the first substrate and the second substrate; a light
source provided by a side of the first substrate, the light source
emitting light toward a side face of the first substrate; and a selective
reflection layer formed on a principal face of the first substrate
opposite from the viewer, the selective reflection layer selectively
reflecting light of a specific polarization direction.