Patent ID: 7663587

Claim:
A liquid crystal display device having a gradation display function comprising: first color pixels which display an image in the gradation range of an n-number of gray levels in a first color; and second color pixels which display an image in the gradation range of the n-number of gray levels in a second color with a lower relative visibility than the first color; wherein the first color pixels have a viewing angle characteristic of Mi/Mj≦1.3 in a case where a display luminance range in a normal direction to a display surface in a gradation range of a gray level i to a gray level j is Li to Lj and a display luminance range in an oblique viewing-angle direction of 30° or more is Mi to Mj (where n, i and j are real numbers, and n≧i>j≧0), and wherein the liquid crystal display device has a display mode in which a display image is displayed in the gradation range of i to j with respect to the first color pixels, and a display image is displayed with respect to the second color pixels in a gradation range that is wider than the gradation range for the first color pixels.