Patent ID: 8189147

Claim:
A liquid crystal display device comprising: a liquid crystal panel of a transmissive-type; a first polarizing plate provided on a light incident side of the liquid crystal panel; a second polarizing plate provided on a light exit side of the liquid crystal panel; and a phase difference member provided in at least one of (i) a position between the liquid crystal panel and the first polarizing plate, and (ii) a position between the liquid crystal panel and the second polarizing plate, the phase difference member having a retardation and being set such that the retardation for such a light path that a display surface of the liquid crystal panel is viewed in a direction at a specific polar angle Φk (0°<Φk<90°) determines a direction in which visibility is limited; and in the case where the display surface of the liquid crystal panel is viewed in the direction at the specific polar angle Φk (0°<Φk<90°), a combination of the phase difference member and the liquid crystal panel generates a phase difference of nλ/2+λ/4 (where n is 0, or a positive or negative integer) in total through the light path from entry of light into the liquid crystal display device to exit of the light from the liquid crystal display device.