Resources Contact Us Home
Integrated light-guide and dome-sheet for keyboard illumination

Image Number 5 for United States Patent #6926418.

An integrated light guide for use in an electronic device having a plurality of key buttons to allow a user to input signals in the device, the light guide having a plurality of domes used as touch areas of the key buttons and a plurality of light escapement areas disposed at the domes. When coupled to a light source, a portion of the light received by the light guide from the light source escapes from the light escapement areas to illuminate the key buttons. Preferably, each dome has one or more electrically conducting patches provided under the dome such that when a touch area is pushed by the user, these patches are caused to interact with an electronic circuit placed under the light guide for activating a key.

  Recently Added Patents
Method of using nutritional compounds dihydroquercetin (taxifolin) and arabinogalactan in combination with dihydroquercetin (taxifolin) to reduce and control cardiometabolic risk factors assoc
LED package chip classification system
High frequency vertical spring probe
Parallel processing computer systems with reduced power consumption and methods for providing the same
Switching device, switch control method, and storage system
Coated article and method for making the same
Adaptive contact window wherein the probability that an answering user/expert will respond to a question corresponds to the answering users having response rates that are based on the time of
  Randomly Featured Patents
Automatic equalization system in FM communication circuit
Communication system and method
Foam pump with bellows spring
Backhoe loader
Surface debris removal apparatus
Image display device and method of driving liquid crystal panel
Underwater visibility device
Fluid circuit means for elevating the rear end of an air ride truck trailer