Backlighted illuminated keyboard
Keyboard for a portable data terminal
Phosphorescent key pad
Electronic luminescence keyboard system for a portable device Patent #: 5684513
ApplicationNo. 782186 filed on 01/14/1997
US Classes:345/168, Including keyboard341/22, Including keyboard or keypad345/170, Light source associated with each key362/84, LIGHT SOURCE OR LIGHT SOURCE SUPPORT AND LUMINESCENT MATERIAL362/287Angularly adjustable or repositionable
ExaminersPrimary: Saras, Steven
Assistant: Vail, Seth D.
Attorney, Agent or Firm
International ClassG09G 005/00
AbstractA method and means for flash charging a plurality of phosphorescent-coated, touch-sensitive keys using a planar, light-transmissive multicolor liquid crystal display (LCD) where the tripping event is the position of a lid of the notebook within a critical angle of the base.