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Bistable DMD addressing method

  • US 5,285,196 A
  • Filed: 10/15/1992
  • Issued: 02/08/1994
  • Est. Priority Date: 10/15/1992
  • Status: Expired due to Term
First Claim
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1. A method of addressing an array of electromechanical pixels wherein each of said pixels assume one of two or more selected stable states according to a set of selective address voltages, said method comprising the steps of:

  • a) electromechanically latching, by applying a bias voltage with an AC and a DC component to said array of pixels, each of said pixels in one of said selected stable states;

    b) applying a new set of selective address voltages to all said pixels in said array;

    c) electromechanically unlatching, by removing said bias voltage from said array, said pixels from their previously addressed state;

    d) allowing said array of pixels to assume a new state in accordance with the new set of selective address voltages; and

    e) electromechanically latching, by reestablishing said bias voltage, each of said pixels.

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