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KEYBOARD

  • US 20120113013A1
  • Filed: 09/23/2011
  • Published: 05/10/2012
  • Est. Priority Date: 11/09/2010
  • Status: Active Grant
First Claim
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1. A keyboard, comprising:

  • a key module comprising a light-transmissive key part and an electric circuit substrate having a plurality of electric switches; and

    a backlight module comprising a light guide plate, a reflection unit and at least one light source, wherein the light guide plate is provided with at least one light incident surface, a light output surface and a rear surface opposite to the light output surface,lights emitted by the light source are projected into the light guide plate from the light incident surface,the backlight module is disposed between the key part of the key module and the electric circuit substrate, so the light output surface is facing the key part and the reflection unit is facing the rear surface of the light guide plate.

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