Patent ID: 7092052

Claim:
A liquid crystal display device, comprising: a liquid crystal layer sandwiched between a first substrate having a light reflectibility and a second substrate having a light transmissibility, the liquid crystal layer including twist-aligned nematic liquid crystal having a dielectric anisotropy; and a circularly polarizing unit, including a single linear polarizer plate that selectively passes either right handed or left handed circularly polarized light out of natural light, wherein, the first substrate, the liquid crystal layer, and the circularly polarizing unit are stacked in this order to form at least a part of the liquid crystal display device, the circularly polarizing unit is disposed such that a major surface of the circularly polarizing unit is on a liquid crystal layer side, the circularly polarized light exiting the circularly polarizing unit through the major surface when natural light enters the circularly polarizing unit, a liquid crystal in the liquid crystal layer has a birefringence difference, which, if multiplied by a thickness of the liquid crystal layer, produces a product of not less than 85 nm and not more than 315 nm, and the liquid crystal layer has a twist angle in a range of 0° to 100°, wherein said incoming circularly polarized light being linearly polarized at a surface of said first substrate in a plurality of directions respectively representative of said plurality of wave lengths of said natural light to thereby create a display.