Patent ID: 6977703

Claim:
A liquid crystal display (LCD) device, comprising: an LCD panel including: a first substrate having a first electrode; a second substrate having a second electrode; and liquid crystal interposed between the first substrate and the second substrate, the liquid crystal being vertically aligned when no electrical filed is applied between the first electrode and the second electrode; a c-plate mono-axial compensating film disposed on the first substrate; a first polarizing plate disposed on the c-plate mono-axial compensating film; and a second polarizing plate disposed on the second substrate, wherein a retardation value R th of the c-plate mono-axial compensating film is in a range from about 220 nm to about 270 nm, and the retardation value R th is represented by R th = [ ( n x - n y ) 2 - n z ] · d , wherein n x is a first refractive index according to x-direction, n y is a second refractive index according to y-direction, n z is a third refractive index according to z-direction, and d is a thickness of the c-plate mono-axial compensating film.