Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Integrated light-guide and dome-sheet for keyboard illumination










Image Number 4 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
Single-electron detection method and apparatus for solid-state intensity image sensors with a charge splitting device
Coordinate measuring device and method for measuring with a coordinate measuring device
High gradient lens for charged particle beam
Digital signal processing apparatus, liquid crystal display apparatus, digital signal processing method and computer program
Memory device and method for dynamic random access memory having serial interface and integral instruction buffer
Identifying multi-component carrier cells
Differential ring oscillator and method for calibrating the differential ring oscillator
  Randomly Featured Patents
Apparatus, method, and computer program for sprinkler control
Lead based alloy for the bonding of aluminum parts to parts comprising an alloy of a heavy metal
Cable connector for use in a brake actuating system
DLL circuit and control method therefor
Process for the thermochemical production of hydrogen
Handheld transceiver with LCD display
Shower escutcheon
Bioadhesive compositions and biomedical electrodes containing them
Clamp and gamma correction circuit, and image display apparatus and electronic machine employing the same
Semiconductor constructions