Patent ID: 8355018
Filing Date: 2013-01-15
Classification: G09G

Abstract:
1. A method for updating an image on a bi-stable display, comprising: determining a plurality of differing first sequences of control signals for driving a plurality of pixels of the bi-stable display from a current state toward a first state; and for at least a set of pixels of the plurality of pixels of the bi-stable display, choosing a second sequence of control signals for the set of pixels, applying a label from a plurality of labels to each pixel in the set of pixels, each label associated with a time offset, each label being randomly selected, applying the time offset associated with the randomly selected label to each pixel in the set of pixels to increase a chance of making a first time offset for a first pixel in the set of pixels differ from time offsets for neighboring pixels in the set of pixels and applying the second sequence of control signals to the set of pixels according to different time offsets randomly selected for each pixel in the set of pixels, wherein the chosen second sequence of control signals for the set of pixels produces a transition effect while driving the set of pixels to a second state.