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Metal keypad panel structure with micropore array

  • US 7,777,144 B2
  • Filed: 01/16/2008
  • Issued: 08/17/2010
  • Est. Priority Date: 11/16/2007
  • Status: Expired due to Fees
First Claim
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1. A metal keypad panel structure with a micropore array, installed on a metal panel of an electronic device, comprising:

  • a backlight module, having a light guide plate, and a plurality of patterns disposed on the light guide plate and composed of a light guide microstructure;

    a metal keypad panel, installed on a side of the backlight module, and having a plurality of micropores disposed thereon;

    a filling, filled into the micropores;

    a pattern layer, disposed on a surface of the metal keypad panel;

    an electric signal module, attached onto a side of the backlight module, and having a flexible printed circuit board;

    a plurality of contact points, disposed on the printed circuit board, each corresponding to a metal dome;

    an adhesive layer, disposed separately on sides of the printed circuit board and the metal dome, and having a dome membrane; and

    an adhesive block, disposed on a side with a plurality of protruding positions of the dome membrane, and having a protrusion corresponding to a pattern on each light guide plate; and

    a light source module, installed on the printed circuit board, and comprised of a plurality of light emitting diodes, and a position of the light emitting diode for producing a light source being corresponding to a side of a light guide plate.

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