Electrodisplacive actuator for use in an actuated mirror array

An actuator array for use in an optical projection video display system, comprising:

• a substrate with a plurality of first metalizations formed thereon;
• and
• a plurality of actuators,
• wherein each of said actuators includes:
• a pair of electrodisplacive members, each of said members having a bottom surface, a side surface, a part of a grooved surface, a part of a recessed surface and a top surface, the bottom surfaces of said members being bonded on the substrate, the side surfaces of said members being in a facing relationship to each other with a second metalization formed therebetween, said grooved surface being formed between the top surface of each of said members of said each actuator and the top surface of an adjacent electrodisplacive member from an adjacent actuator in the array , said grooved surface being provided with a third metalization thereon, said recessed surface being formed between the bottom surface of each of said members of said each actuator and the bottom surface of the adjacent electrodisplacive member from the adjacent actuator in the array, the top surfaces of said members being attached with a mirror mounted thereon, said members further having a polarization selected so that a voltage applied between their respective second metalization and third metalization causes one of said members to vertically expand and the other to vertically contract, thereby tilting the mounted mirror;
• a metal layer provided over said bottom surfaces of said members;
• and
• an electrically conductive adhesive paste layer disposed between said metal layer and a respective one of said first metalizations for providing an electrical contact therebetween.