Piezoelectric actuator interface and method

摘要

An apparatus including a flexible circuit having a flexible substrate and at least one electrical conductor; and a least one piezoelectric member adapted to move when a voltage is applied to the piezoelectric member. The piezoelectric member is mounted to a first side of the flexible substrate and electrically connected to at least one of the electrical conductors.

主权项

1. An apparatus comprising:
an interface circuit comprising a substrate and a plurality of electrical conductors; at least one piezoelectric member adapted to move when a voltage is applied to the piezoelectric member, where the at least one piezoelectric member is mounted to a first side of the substrate, where each of the electrical conductors has a first end and a second end, where the first ends are connected to the at least one piezoelectric member between the substrate and the at least one piezoelectric member, and where the electrical conductors extend away from the at least one piezoelectric member such that the second ends of the electrical conductors are spaced a substantial distance away from the first ends for connection to another component, where the first ends of the electrical conductors are in a different plane than the second ends of the electrical conductors; and a metal carrier mounted to an opposite second side of the substrate, where a portion of the interface circuit including the substrate is located between the metal carrier and the at least one piezoelectric member, where at least one of the electrical conductors of the interface circuit is electrically connected to the metal carrier for the metal carrier to be connected to a ground through the interface circuit when the second ends are connected to the another component, and where the substrate provides electrical insulation of the metal carrier from the at least one piezoelectric member, where the apparatus is configured to be positioned at a display, with the at least one piezoelectric member being located between the display and the metal carrier, such that the apparatus is configured to move the display when the voltage is applied to the at least one piezoelectric member, where the substrate comprises a flexible polymer material such that the substrate and electrical conductors are a flexible circuit, and where the flexible circuit comprises at least one grounding pad, where the at least one ground pad is configured to flex with the substrate.