Patent ID: 8767152
Filing Date: 2014-07-01
Classification: G02F

Abstract:
1. A liquid crystal display comprising: a vertically aligned liquid crystal cell having first and second surfaces opposite each other; first and second polarizers attached to the first and the second surfaces of the liquid crystal cell, respectively; and a compensation film comprising a first biaxial compensation film disposed between the first surface of the liquid crystal cell and the first polarizer and having different refractive indexes in three directions, and wherein a first retardation value of the compensation film is (nxc1−nzc1)*dc1, where a z-axis is perpendicular to the first surface of the liquid crystal cell, an x-axis is the same direction as the direction having the largest refractive index in the compensation film, nxc1 and nzc1 are refractive indices along the x-axis and the z-axis of the compensation film, respectively and dc1 is a thickness of the compensation film, respectively, wherein the difference between the summation of the first retardation value of the compensation film and retardation values of the first and second polarizers, and a retardation value due to birefringence of the liquid crystal cell is equal to or less than about 15% of the retardation value due to birefringence of the liquid crystal cell.