Multi-touch surface stackup arrangement

  • US 20080158173A1
  • Filed: 01/03/2007
  • Published: 07/03/2008
  • Est. Priority Date: 01/03/2007
  • Status: Active Grant
First Claim
Patent Images

1. A cover having one or more light-transmissive apertures for one or more devices below the cover, comprising:

  • a substantially transparent structural layer;

    a substantially transparent outside hardcoat affixed to an outside-facing surface of the structural layer;

    infrared (IR) transmissive ink affixed to an inside-facing surface of the structural layer for giving the cover a uniform appearance;

    an opaque mask layer affixed to an inside-facing surface of the IR transmissive ink, the mask layer having one or more first openings substantially aligned with one or more first devices, the IR transmissive ink hiding the one or more first openings; and

    a backside hardcoat affixed to the mask layer, the backside hardcoat and the outside hardcoat having similar or identical coefficients of thermal expansion to minimize warpage of the cover.

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