Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Wide dimming range backlight for liquid crystal devices










Image Number 4 for United States Patent #5442522.

A backlight system for liquid crystal device display is equipped with a dual lighting system for day viewing and night viewing. The day lighting system uses conventional fluorescent or incandescent lamps for full color display during daytime use. The night lighting system uses a lower intensity light source. The day lighting system is disabled while the night system is in use. The dual lighting system provides an extended dimming range compared to what would otherwise be available.








 
 
  Recently Added Patents
Creation and use of test cases for automated testing of media-based applications
Radiation detector array
Method and device for evaluating evolution of tumoural lesions
Charged particle source with multiple selectable particle emitters
Proton conducting electrolytes with cross-linked copolymer additives for use in fuel cells
Encoding and/or decoding memory devices and methods thereof
Bamboo scrimber and manufacturing method thereof
  Randomly Featured Patents
Device and a method for restoring positional information of robot
Watch
Expansion card
Device for producing material having optically varying effects and method of producing the same
Polymeric insulating material and formed article making use of the material
Soap bar
Method for molding dental restorations and related apparatus
Method for serving IP users by graphically-based interaction to agents of a call center
Method for amplitude insensitive packet detection
Belt transmission mechanism