Patent ID: 7948506

Claim:
A full-color display device, comprising: a) a display having a plurality of pixels formed in rows, each pixel including at least red, green, blue color sub-pixels and a white subpixel formed within each row, wherein the white sub-pixel has an efficiency greater than at least one of the color sub-pixels, and wherein at least one white sub-pixel is defective, resulting in at least one defective pixel; and b) a controller for driving the display pixels and for transforming an input signal into a compensated signal for selectively modifying the output of: at least one color sub-pixel in the defective pixel, at least one other, but not all, of the color sub-pixels in a neighboring pixel in the row containing the defective pixel, and only a white subpixel(s) in neighboring pixels in rows that are above or below the row containing the defective pixel, the at least one other color sub-pixel including the color subpixel in the neighboring pixel that is closest to the defective white sub-pixel, to compensate for the output of the defective sub-pixel(s) in order to maintain a desired luminance and/or chrominance of the display device, wherein the defective sub-pixel provides more or less luminance than desired and wherein a first fraction of a difference in desired luminance and the luminance provided by the defective sub-pixel is compensated by the white subpixel(s), and a second fraction of the difference in desired luminance and the luminance provided by the defective sub-pixel is compensated by the color sub-pixel(s).