A liquid crystal display device includes a first polarization plate, a first birefringent film atop the first polarization plate, an optically compensated bend mode (OCB-mode) cell atop the first birefringent film, a refractive film atop the OCB-mode cell, a second birefringent film atop the refractive film, and a second polarization plate atop the second birefringent film. With this structure, any phase retardation of polarized light occurred during the propagation of the polarized light from the first polarization plate to the second polarization plate is compensated by the first birefringent film, the refractive film, and the second birefringent film and a substantially cross-shaped radiation pattern of full viewing angle is obtained in an actual measurement at the light outgoing surface of the liquid crystal display device, proving the liquid crystal display device has effectively improved the problem of restricted viewing angle and provides good optical performance.