Patent ID: 8228264
Filing Date: 2012-07-24
Classification: G09G

Abstract:
1. A method for driving segments of a bistable display, the method comprising: generating, by a plurality of generating units, a plurality of independent waveforms corresponding to changes in display data for driving a plurality of segments of the bistable display; receiving each of the waveforms generated by the plurality of generating units at each of a plurality of segment control units; selecting and initiating, for each segment independently, one of the independent waveforms; determining whether an update of display data has occurred for one of the segments; selecting a different one, or a different sequence of, the waveforms corresponding to a change of display data for the one of the segments, to drive the segment if an update has occurred; and maintaining a currently selected waveform to drive the segment if an update has not occurred, wherein the independent waveforms are generated by different generating units and initiated independently in time; and wherein the waveforms are generated based on a number of the segments, durations of the waveforms, and an update frequency of the bistable display, wherein a first independent waveform having a longer duration is greater in quantity than a second independent waveform having a shorter duration.