Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tai-Cherng Yu0
Date of Patent
January 27, 2009
Patent Application Number
11411581
Date Filed
April 26, 2006
Patent Citations Received
Patent Primary Examiner
Patent abstract
A light guide plate a light incidence surface, a light-emitting surface joining with the light incidence surface, a diffraction grating having a plurality of grating slots formed on the light-emitting surface, and a bottom surface on an opposite side of the light guide plate to the light-emitting surface. The diffraction grating converts light that has been dispersed by reflection and refraction into plane parallel light thus increasing brightness.
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