Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
September 15, 2009
Patent Application Number
11288258
Date Filed
November 29, 2005
Patent Citations Received
Patent Primary Examiner
Patent abstract
A keyboard equipped with a backlight structure includes a keyboard portion, a bridge board and a base board located beneath the keyboard portion to form a light transmission space. The bridge board has a light channeling portion to channel light entering the light transmission space to the keyboard portion where light emission is desired to refract the light. The structure can be made at a lower cost and converge light to display the keyboard portion without illuminating the entire keyboard portion.
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