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FINGERPRINT SENSORS

  • US 20150078636A1
  • Filed: 11/19/2014
  • Published: 03/19/2015
  • Est. Priority Date: 05/17/2011
  • Status: Active Grant
First Claim
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1. A sensor for detecting one or more fingerprints comprising:

  • a first substrate and a second substrate;

    a two-dimensional array of sensing elements between said first substrate and said second substrate, wherein said sensing elements of said array are at least light sensing elements;

    a plurality of thin-film transistors for controlling said sensing elements; and

    a plurality of light sources between said first substrate and said second substrate distributed at locations among said array of said light sensing elements for transmitting illumination via said second substrate, in which said light sensing elements detect reflected illumination representative of one or more fingerprints via said second substrate.

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