Parallelizing determination of pixel values for use with a color filter array

A method comprising:

• receiving a first image stored in a frame buffer associated with an electrophoretic display of a computing device, wherein the electrophoretic display includes black and white ink and a color filter array overlaid thereon;
• identifying, for the first image, a first processing region of the frame buffer, a second processing region of the frame buffer, and a third processing region of the frame buffer;
• determining, using one or more serial processing operations, grayscale values for pixels in the first processing region;
• determining, using one or more parallel processing operations, grayscale values for pixels in the second processing region;
• and
• determining, using one or more serial processing operations, grayscale values for pixels in the third processing region.

An electronic device comprising:

• a display assembly comprising
• first color components having a first color and a first charge polarity,
• second color components having a second color different from the first color,
• a thin film transistor assembly,
• a color filter array;
• one or more processors;
• one or more computer readable media storing processor executable instructions which, when executed using the one or more processors, cause the electronic device to perform operations comprising
• determining, based on first data indicating one or more boundaries of one or more dither regions, a first set of pixel locations in a first line for parallel processing,
• storing, in a first vector memory register, respective pixel color data for each respective pixel location of the first set of pixel locations that indicates a respective set of color channel values for the respective pixel location,
• determining, using one or more vector operations utilizing dither map data and the pixel color data stored in the first vector memory register, respective dithered pixel color data for each respective pixel location of the first set of pixel locations,
• determining, utilizing one or more vector operations and based on the dithered pixel color data for the first set of pixel locations and color filter array data indicating a respective color channel associated with each respective pixel location of the first set of pixel locations, respective grayscale data for each respective pixel location of the first set of pixel locations, and
• updating, based on the respective gray scale data for a first pixel location of the first set of pixel locations, the display assembly by causing the thin film transistor assembly to effect movement of one or more of the first color components corresponding to the first pixel location.