System and method for low-flash veil on an electronic paper display

摘要

A system and method for controlling a user interface display that de-emphasizes a background image of a physical display. The system and method draws a pattern, preferably a checkered pattern, of black and transparent pixels over the background image. The system and method mitigates any jarring effect of the prior art of driving all of the display to black. Although in the preferred embodiment, the checkered pattern alternates pixels between black and transparent, any pattern that drives less than substantially all of the pixels to black is suitable.

主权项

1. A process for controlling an electronic paper display (EPD), the EPD comprising a plurality of pixels, the process comprising the acts of:
determining an initial state of each of the plurality of pixels of the EPD; driving a pattern of less than all of the plurality of pixels of the EPD to a black state, wherein pixels which are not driven to the black state retain their initial state, and wherein the pixels driven to the black state and the pixels that retain their initial state form a background image; and drawing a new image over a portion of the background image, the pixels comprising the new image containing pixel states that are different from their initial states.