| 摘要 |
It is an object to provide an IPS mode type liquid crystal display device that is improved in a viewing angle observed from an oblique direction, visibility such as reproducibility and clearness of a black display, and a front contrast. The IPS mode type liquid crystal display device is comprised of a first polarizer, a first substrate, a liquid crystal layer, a second substrate, wherein these elements are disposed in that order, and first and second retardation layers disposed between the first polarizer and the first substrate. The object is achieved by the liquid crystal display device characterized in that the first retardation layer is negatively biaxial, the retardations Ro and Rth of the second retardation layer are 0<=Ro<=50nm and 50<=Rth<=300nm, the absorption axis of the first polarizer and the retardation axis direction of the liquid crystal layer at the black display are orthogonal with each other, the retardation axis in a plane of the first retardation layer and the absorption axis of the first polarizer are in parallel with each other in the case where the first retardation layer is closer to the first polarizer side, and the retardation axis in the plane of the first retardation layer and the absorption axis of the first polarizer are orthogonal with each other in the case where the second retardation layer is closer to the first polarizer side. |
