Multi-primary display mask-based dithering with low blooming sensitivity
AssigneeE Ink Corporation
InventorKenneth R. CROUNSE
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Abstract
Methods for driving color electrophoretic displays including a plurality of display pixels capable of producing a set of primary colors. The method comprises defining a separation cumulate threshold array and using the separation cumulate threshold array to identify areas of the electrophoretic display that are better suited for dithering and not dithering the areas of the electrophoretic display that exceed the separation cumulate threshold.
Claims13
A method for driving a color electrophoretic display having a plurality of display pixels in an array, each display pixel being capable of displaying at least three primary colors, the method comprising:
- receiving an input image;
- processing the input image to define a separation cumulate at each pixel;
- defining a separation cumulate threshold array wherein each member of the array is at least two pixels by two pixels in size, and includes a different separation cumulate threshold for each of the three primaries;
- and
- sending an instruction to each pixel to display the primary color corresponding to the first separation cumulate threshold that is exceeded by the separation cumulate at that pixel.
Dependencies are inferred from the claim text.