CHARGE CONTROL TECHNIQUES FOR SELECTIVELY ACTIVATING AN ARRAY OF DEVICES

摘要

Methods and apparatus are described by which charge may be delivered to an array of electromechanical devices (e.g., MEMS or NEMS) driven in parallel such that only a desired number of the devices are actuated. Specific embodiments relate to visual displays implemented using interferometric modulators (IMODs). In particular, spatial half-toning techniques for achieving grayscale in such displays are described that are not characterized by the power penalty associated with conventional spatial half-toning techniques.