Patent ID: 7289115

Claim:
A liquid crystal on silicon (LCOS) imager comprising: a plurality of cells, each cell including a first electrode comprising a common electrode and a second electrode; a voltage source providing at least two analog voltage signals to respective second electrodes of said cells, said at least two analog voltage signals representing pictures of positive and negative images, said at least two analog voltage signals having different phases; respective resistors coupled between said second electrodes and said common electrodes; and a capacitor coupled between said common electrode and a reference potential; wherein said at least two analog voltage signals vary from approximately zero volts to approximately eight volts to create said positive images, and from approximately eight volts to approximately 16 volts to create said negative images, said positive images and said negative images being alternately applied to said plurality of cells, and wherein said common electrode receives a bias voltage approximating an overall average value of said at least two analog voltage signals.