Patent ID: 7630039

Claim:
A liquid crystal display device, comprising: a reflecting layer for reflecting incident light; a liquid crystal layer provided on said reflecting layer; and an optical compensation plate provided on a front surface of said liquid crystal layer, wherein said optical compensation plate has a layer structure constituted of a first retardation plate, a second retardation plate, and a polarizing plate from a side close to said liquid crystal layer, wherein said first and second retardation plates have uniaxial anisotropies respectively, and both are superposed to create, in a combined manner, a function of a quarter-wave plate and a function of a negative retardation plate, wherein an angle formed between an absorption axis of said polarizing plate and an optical axis of said second retardation plate is about 45°, wherein a difference between an in-plane retardation of said second retardation plate and an in-plane retardation of said first retardation plate is set to a quarter wavelength, and wherein the optical axis of said second retardation plate and an optical axis of said first retardation plate are substantially orthogonal.