×

Portable Electronic Device and its Key structure

  • US 20090128497A1
  • Filed: 08/25/2008
  • Published: 05/21/2009
  • Est. Priority Date: 11/20/2007
  • Status: Abandoned Application
First Claim
Patent Images

1. A key structure, adapted for a portable electronic device having a first operation mode and a second operation mode, the key structure comprising:

  • a key configured to display a first input symbol and a second input symbol;

    a first light source, disposed under the key, and emitting a first colored light in the first operation mode to light up the first input symbol; and

    a second light source, disposed under the key, emitting a second colored light in the second operation mode to light up the second input symbol.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×