Image display device and method of displaying image

An image display device comprising:

• an image display unit including
• a first pixel constituted of sub-pixels of three or more colors included in a first color gamut and
• a second pixel constituted of sub-pixels of three or more colors included in a second color gamut different from the first color gamut and at least one color of the three or more colors is different from the colors of the sub-pixels in each of the first pixels,
• wherein the first pixel is one of a plurality of first pixels and the second pixel is one of a plurality of second pixels, the first pixels and the second pixels being arranged in a matrix, and instances of the first pixels being adjacent to respective instances of the second pixels;
• and
• a processing unit that determines an output of the sub-pixels included in at least the first and second pixels of the image display unit corresponding to an input image signal, wherein
• the processing unit determines an output of the sub-pixels included in the first pixel based on a combined component of
• a first component as components of the input image signal corresponding to the first pixel, and
• an out-of-color gamut component as a component of the input image signal corresponding to the second pixel, a color of which cannot be extended with the sub-pixels included in the second pixel, and
• the processing unit determines an output of the sub-pixels included in the second pixel based on a third component obtained by eliminating the out-of-color gamut component from a second component as components of the input image signal corresponding to the second pixel.