Patent ID: 7834829
Filing Date: 2010-11-16
Classification: B81C,G02B,G09G

Abstract:
1. A control circuit for a micro-electromechanical system comprising: a micro-electromechanical system having a first capacitor plate, a second capacitor plate, and a moveable pixel plate positioned between the first and second capacitor plates so that the moveable pixel plate overlies the first capacitor plate and the second capacitor plate overlies the moveable pixel plate, the first capacitor plate being electrically coupled to a first voltage source, the second capacitor plate being electrically coupled to a second voltage source, the first and second voltage sources defining a voltage differential therebetween; and a switching circuit electrically coupled to the moveable pixel plate, the switching circuit comprising a first switching means and a second switching means, the first switching means being electrically coupled between a release voltage source and the moveable pixel plate for selectively applying a non-zero release voltage to the moveable pixel plate from the release voltage source at least while the moveable pixel plate is adhered to one of the first and the second capacitor plates for releasing the moveable pixel plate from the one of the first and the second capacitor plates to which the moveable pixel plate is adhered, the second switching means being electrically coupled between a positional voltage source and the moveable pixel plate for selectively applying a positional voltage to the moveable pixel plate from the positional voltage source when the moveable pixel plate is not adhered to either the first capacitor plate or the second capacitor plate.