Patent ID: 7079218

Claim:
An optically compensated birefringence mode liquid crystal display device, comprising: first and second substrates facing and spaced apart from each other; a liquid crystal material layer between the first and second substrates, the liquid crystal material layer having a splay state when a voltage is not applied and having a bend state when a transition voltage is applied; a first compensation film on an outer surface of the first substrate; a first polarizing plate on the first compensation film; a second compensation film on an outer surface of the second substrate; and a second polarizing plate on the second compensation film, wherein the liquid crystal material layer in the splay state has a first retardation value (R 1 ) according to: 1.35 <R 1/λ<1.75 the liquid crystal material layer in the bend state has a second retardation value (R 2 ) according to: 0.5 <R 2/λ<0.7 when a white voltage for a white image is applied, and a third retardation value (R 3 ) according to: 0.1 <R 3/λ<0.15 when a black voltage for a black image is applied.