Systems, devices, and methods for driving an analog interferometric modulator

摘要

Display elements of a display array include at least one fixed layer and a movable layer. The movable layer is positioned with respect to the at least one fixed layer by placing a charge on the movable layer and applying a voltage to the at least one fixed layer. The at least one fixed layer may be two layers positioned on either side of the movable layer. The movable layer may be positioned in a desired position when driving an array of display elements by executing a reset stage, a charging stage, and a bias stage.

主权项

1. A method of writing image data to an electromechanical display element to place the electromechanical display element into a defined display state, the display element including at least one stationary electrode and a movable electrode, the method comprising:
applying a first voltage to the at least one stationary electrode during a reset period; applying a second voltage to the at least one stationary electrode during a charging period following the reset period; applying a third voltage to the movable electrode during the charging period to charge the movable electrode with a charge Q defined at least in part by the third voltage; applying a fourth voltage different from the second voltage to the at least one stationary electrode during a bias period following the charging period; and electrically isolating the movable electrode during the bias period, wherein the electromechanical display element includes first and second stationary electrodes, wherein the movable electrode is positioned between the first and second stationary electrodes, wherein the first voltage, second voltage, and fourth voltage are a first voltage differential, a second voltage differential, and a fourth voltage differential applied across the first stationary electrode and the second stationary electrode, wherein the first voltage differential is substantially zero, and wherein the movable electrode is electrically isolated during the reset period.