Abstract: A method of processing an image signal includes: converting a source image signal into an image signal corresponding to a color space for a color gamut mapping; reducing a color gamut of the image signal; and mapping the image signal corresponding to colors within the reduced color gamut into an image signal corresponding to colors within a display color gamut, wherein the colors of the display color gamut are displayed by a display panel.

Abstract: A method of displaying a three-dimensional stereoscopic image includes generating a plurality of left-eye or right-eye virtual primary color data using a left-eye or right-eye data frame, calculating a plurality of left-eye or right-eye virtual primary color dimming levels using the left-eye or right-eye virtual primary color data, sequentially outputting a plurality of left-eye or right-eye virtual primary color data frames, corrected based on the left-eye or right-eye virtual primary color dimming levels, to a display panel, and sequentially providing a plurality of left-eye or right-eye virtual primary color lights, generated from a light source part based on the left-eye or right-eye virtual primary color dimming levels, to the display panel.