Patent ID: 8451201
Filing Date: 2013-05-28
Classification: G02F,G09G

Abstract:
1. A method of driving a liquid crystal display including two or more stacked liquid crystal panels and polarized light absorbing layers provided to form crossed Nicols across the liquid crystal panels, the first liquid crystal panel of the stack liquid crystal panel is a color liquid crystal panel, and at least one of the other liquid crystal panels is a black and white liquid crystal panel and the stacked liquid crystal panels, wherein the liquid crystal panel outputting individual images according to a video source, wherein if a γ value of an image data output of the liquid crystal display, γ wherein the liquid crystal panel outputs image data with smoothing, the smoothing including obtaining a maximum gray level in an M×N dot region, where M and N are natural numbers, substituting an obtained gray level for a gray level of a central one of the M×N dots, and smoothing the gray level of the central dot, N and M are set so that a ratio of a distance Dn in an N direction and a distance Dm in an M direction is substantially 1; and an average Dave of Dn and Dn is Dgap is a distance between a liquid crystal layer in the color liquid crystal panel and a liquid crystal layer in the black and white liquid crystal panel, and n is an average refractive index of materials disposed between the two liquid crystal layers.