Patent ID: 7113159

Claim:
A liquid crystal display device comprising: a liquid crystal panel capable of gradation display, which includes distortion adjusting means for adjusting gradation curve's distortion with respect to a viewing angle, the gradation curve indicating a relation between a gradation and a luminance ratio on a display screen of the liquid crystal panel, said distortion adjusting means increasing the gradation curve's distortion with respect to viewing angle in a first mode when a narrow range of good viewing at a normalized viewing angle is desired, and decreasing the gradation curve's distortion with respect to viewing angle in a second mode when improved viewing characteristics are desired over a wide range of viewing angles; one pixel in the liquid crystal panel is comprised of sub-pixels corresponding to three primary colors, and at least one white sub-pixel other than the three primary colors; and wherein the distortion adjusting means sets display data supplied to the liquid crystal panel so as to show respectively different gradation curves with respect to all of the sub-pixels in the one pixel.