Patent ID: 8780104

Claim:
A method of calibrating drive scheme voltages in an array including a plurality of display elements, the method comprising: determining, for a first subset of the display elements of the array, a first voltage characterizing a voltage which causes essentially all the display elements in the first subset to actuate from a released state; determining, for a second subset of the display elements of the array, a second voltage characterizing a voltage which causes a first display element in the second subset to actuate from a released state but which does not cause a significant number of other display elements in the second subset to actuate from a released state; determining, for a third subset of the display elements of the array, a third voltage characterizing a voltage which causes a first display element in the third subset to release from an actuated state but which does not cause a significant number of other display elements in the third subset to release from an actuated state; and using the first, second, and third voltages to perform maintenance calibrations during use of the array over at least some portion of the life of the array.