DISPLAY DEVICE

摘要

An object of the invention is to convert input RGB data to R'G'B'W data without suffering loss of gradations of the input RGB data. A display panel 12 is configured having unit pixels made up of subpixels of RGBW (red, green, blue, white).In an RGB ? R'G'B'W conversion section 10, conversion is carried out under conditions that usage rate of W is less than 100%, and a bit width of input RGB data us larger than a bit width of R'G'B'W data after conversion. In the RGB ? R'G'B'W conversion section 10, R1G1B1 values and W values are determined so that an absolute value of a sum of values obtained by multiplying differences between resective RGB data input and respective RGB components in R'G'B'W data after conversion by a weight, becomes minimum.