×

KEYBOARD FOR HAND HELD COMPUTING DEVICE

  • US 20090174994A1
  • Filed: 01/07/2009
  • Published: 07/09/2009
  • Est. Priority Date: 01/07/2008
  • Status: Active Grant
First Claim
Patent Images

1. A keyboard assembly for a hand held computing device including keys, comprising:

  • a base layer of a printed circuit board, a carrier layer having snap domes set out in an array aligned with the keys of the keyboard assembly;

    an electroluminescent layer that generates light in the areas aligned with the keys of the keyboard assembly to backlight the keys of the keyboard assembly;

    an actuator layer having projections aligned with the keys of the keyboard assemblya key pad layer stacked on top of the actuator layer and having individual key portions corresponding to the keys of the keyboard assembly and aligned with the projections of the actuator layer and snap domes; and

    a cover plate having openings through which the key portions of the key pad layer extend.

View all claims
  • 10 Assignments
Timeline View
Assignment View
    ×
    ×