Patent ID: 7598965

Claim:
A method that defines respective subpixel drive signals for driving respective subpixels of a display panel and thereby causes rendering of an image on the display panel in response to supplied input image data, where the input image data defines an input image grid having pixels of different colors; and where said display panel is substantially tessellated by a subpixel repeating group comprising at least a first subpixel providing a substantially white output and at least second and third subpixels providing respective non-white and different color outputs; said method being implemented in a digital signal processor and comprising: receiving the input image data that substantially defines the image to be rendered on said display panel; if not provided by the supplied input image data, converting the input image data into input color planes data representing respective white and non-white input color plane grids that are superimposable over the tessellated subpixel repeating groups of the display panel and also converting the input image data into luminance plane data representing a luminance plane grid that is superimposable over the tessellated subpixel repeating groups and that corresponds to luminance contributions assignable to a totality of the multi-colored image defining data in the supplied input image data; for each individual one of hypothetically superimposed ones of the white and non-white input color plane grids and its respective first or other same-colored subpixels, relying on predefined resample areas to compute for each same-colored subpixel, a respective output luminance value by multiplying data values provided by same-colored grid areas of the respective same-colored input color plane grid by spatially corresponding coefficients of a predefined, area resampling filter; said area resampling filter defining a matrix of spatially distributed coefficients arranged such that each coefficient represents a corresponding fractional contribution by one of said data values to the predefined resample area of said same-colored subpixel; using the luminance plane data to respectively sharpen the output luminance values of one or more of the respective differently colored subpixels of the tessellated subpixel repeating groups; and using the post sharpening output luminance values to generate the respective subpixel drive signals for driving the respective subpixels of the display panel.