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Pressure-sensitive multi-touch device

  • US 8,736,574 B2
  • Filed: 05/19/2011
  • Issued: 05/27/2014
  • Est. Priority Date: 05/19/2011
  • Status: Active Grant
First Claim
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1. A pressure-sensitive multi-touch device configured to detect one or more touch inputs, the multi-touch device comprising:

  • a first layer comprising a plurality of columns;

    a second layer comprising a plurality of rows, the second layer opposing the first layer;

    a pressure-sensitive cell at each intersection of a column and a row, each pressure-sensitive cell configured to change a resistance of the cell inversely proportional to an amount of force applied to that cell; and

    a spacer assembly between pressure-sensitive cells, the spacer assembly comprising an island having approximately a same height as each of the plurality of columns, a land having approximately a same height as each of the plurality of rows, and a spacer between the island and the land, the spacer sized to span a distance between the island and the land in the absence of an external applied force and to separate the column from the row at adjacent pressure-sensitive cells in the absence of an external applied force.

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