Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Peter T. Aylward0
Robert P. Bourdelais0
Qi Hong0
Date of Patent
March 24, 2009
0Patent Application Number
117491800
Date Filed
May 16, 2007
0Patent Primary Examiner
Patent abstract
A backlight apparatus for directing light toward a display panel and the resulting display device comprises a solid lightguide comprising opposite TIR surfaces, containing a desired pattern of light redirecting surface features located between the TIR surfaces and interrupting one of the TIR surfaces, the features having a refractive index differing from that of the solid material of the light guide. Such an apparatus provides a more even light distribution to the display.
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