Patent ID: 8390646

Claim:
A method for rendering a colors- and/or grays-filled image represented by a received input image data signal onto a display panel; said display panel having a display area substantially populated by tessellation of a subpixel repeating group comprised of at least one white subpixel that is configured to produce a white light and of a plurality of different primary color subpixels configured to respectively produce respective non-white lights of respective primary colors; the method comprising: receiving an input image data signal representing a corresponding colors- and/or grays-filled image for rendering on said display panel, the corresponding input image being represented by the input image data signal as a grid of input pixels, each input pixel having a respective mix of input primary colors and/or an input white component and a respective input luminance; defining a respective primary color plane for each different color respectively producible by said plurality of different primary color subpixels, the respective color plane being populated by respective colored light source points corresponding to centers in the display area of the subpixels configured to respectively produce the primary color of the respective primary color plane; defining a white color plane, said white color plane being populated by respective white light source points corresponding to centers in the display area of the subpixels configured to produce said white color; for each individual primary color plane respectively defined by respective ones of the same-colored primary color subpixels of the display area, using a subpixel rendering process for subpixel rendering corresponding colored pixel components of said input image data signal so as to thereby produce subpixel rendered image data representing how the primary color subpixels are initially planned to be driven so as to reproduce the colored input pixel components of the input image; for the white color plane, using the subpixel rendering process for mapping corresponding white input pixel components of said input image data signal onto the white color plane so as to thereby produce subpixel rendered image data representing how the white subpixels are initially planned to be driven so as to reproduce the white input pixel components of the input color image; defining a luminosity plane, the luminosity plane having a grid corresponding to that of the grid of input pixels represented by the input image data signal, and populating the luminosity plane with luminosity values derived from the corresponding input pixels represented by the input image data signal; using the populated luminosity plane to define a luminance signal; and sharpening the subpixel rendered image data produced by said subpixel rendering process with the defined luminance signal.