Electro-Optic Displays and Driving Methods

An electro-optic display comprising:

• a common electrode;
• a layer of electro-optic material disposed between the common electrode and a backplane, the backplane including an array of display pixels, wherein each display pixel includes a pixel electrode coupled to a pixel transistor;
• and
• a display controller circuit in electrical communication with the common electrode and the pixel transistor coupled to each pixel electrode, the display controller circuit capable of applying waveforms to the array of display pixels by applying one or more time-dependent voltages between the common electrode and the pixel electrodes via the pixel transistors, the display controller circuit configured to:
• apportion a displayable region of the electro-optic display into N BRAID line groups, wherein each of the N BRAID line groups is associated with a frame buffer;
• receive first image data comprising optical state data for the entire displayable region of the electro-optic display;
• sequentially write subsets of the first image data to each of the N frame buffers, wherein each of the N frame buffers is written with data corresponding to the corresponding BRAID line group;
• sequentially update portions of the displayable region of the electro-optic display based on the data in each of the N frame buffers;
• receive second image data comprising optical state data for the entire displayable region of the electro-optic display;
• sequentially write subsets of the second image data to each of the N frame buffers, wherein each of the N frame buffers is written with data corresponding to the corresponding BRAID line group, and wherein the subsets of the first image data in each of the N frame buffers are overwritten by the subsets of the second image data after the portion of the displayable region is updated based on the subsets of the first image data in each of the N frame buffers;
• and
• sequentially update portions of the displayable region of the electro-optic display based on the subsets of the second image data in each of the N frame buffers,
• wherein subsets of the second image data are presented on the electro-optic display while subsets of the first image data are presented on the electro-optic display.