Patent ID: 7551251
Filing Date: 2009-06-23
Classification: G02F

Abstract:
1. A liquid crystal display device, comprising: two substrates; a liquid crystal layer sandwiched between the two substrates; two polarizers, wherein the two substrates are between the two polarizers; and a compensation film provided between one of the polarizers and one of the substrates; wherein a phase retardation, R wherein R 0 (450), R 0 (650) and R 0 (λ 0 ) represent the phase retardation of the compensation film at wavelengths of 450 nm, 650 nm, and λ 0 , respectively, and λ 0 =[n e −n o ]×d/k , where 450 nm≦λ 0 ≦650 nm, and where n e and n o represent refractive indices of the liquid crystal layer, d represents a cell gap defined between the two substrates and k is a constant, 0.55≦k≦1.