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Fingerprint sensors for mobile devices

  • US 9,710,689 B2
  • Filed: 10/27/2016
  • Issued: 07/18/2017
  • Est. Priority Date: 10/30/2015
  • Status: Active Grant
First Claim
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1. A display assembly for a user device, the display assembly comprising:

  • a protective substrate;

    touch circuitry located below the protective substrate that generates a signal responsive to a user interaction with the protective substrate;

    a liquid crystal display (LCD) panel located below the touch circuitry;

    a backlight assembly located below the LCD panel, wherein the backlight assembly includesa diffuser configured to diffuse light emitted toward the LCD panel,an optically clear adhesive layer disposed between the diffuser and a backlight, wherein the optically clear adhesive layer substantially eliminates an air clap between the diffuser and the backlight, andthe backlight configured to generate the light that illuminates the LCD panel; and

    a fingerprint sensor located below the backlight assembly.

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