Patent ID: 7920136
Filing Date: 2011-04-05
Classification: G09G

Abstract:
1. A method of writing data to an array of electromechanical devices, each having first and second input electrodes, wherein each electromechanical device is configured to be in an actuated state when a voltage difference between the first and second input electrodes is above a threshold, wherein the voltage difference has one of first and second polarities, the method comprising: randomly or pseudo-randomly selecting between the first and second polarities for a first row of the array; randomly or pseudo-randomly selecting between the first and second polarities for a second row of the array; selecting a first voltage for the first input electrode of the first and second rows of the array according to the selected polarities of the first and second rows; selecting a second voltage for the second input electrode of the first and second rows of the array according to the selected polarities of the first and second rows; and simultaneously applying the first and second voltages across the first and second input electrodes of a plurality of devices in first and second rows of the array, the applied voltages having a difference above the threshold and having a polarity based on the selected polarity, wherein each of the first and second rows of the array display an image according to the first and second voltages, the image of the second row being the same or the inverse of the first row, according to the selected polarity of each row.