Patent ID: 8547394

Claim:
A method for preparing a color image for display on an electro-optic display device, comprising: (a) receiving the color image defined by data pixels in a first pixel resolution, the first pixel resolution corresponding with each data pixel having a 5-bit red component, a 6-bit green component, and a 5-bit blue component; (b) performing a color correcting operation on the color image in the first pixel resolution; (c) performing an image sharpening operation on the color image in the first pixel resolution; (d) performing a color linearization operation on the color image in the first pixel resolution; (e) performing an image dithering operation on the color image in the first pixel resolution, the image dithering operation outputting the color image in a second pixel resolution, the second pixel resolution corresponding with each data pixel having a 4-bit red component, a 4-bit green component, and a 4-bit blue component; and (f) performing a saturation adjustment operation on the color image in one of the first and second pixel resolutions; wherein the display device includes a display matrix of display pixels, each display pixel comprising: two or more first sub-pixels, each first sub-pixel having two or more display states and a color filter; and a second sub-pixel, each second sub-pixel having two or more display states and a white filter, wherein the first sub-pixels are arranged in rows and columns in a repeating pattern, and each first sub-pixel is horizontally adjacent and vertically adjacent to one or more second sub-pixels.