Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ichiro Suehiro0
Kazuki Uawada0
Naoki Sadayori0
Noriaki Harada0
Yuji Hotta0
Date of Patent
November 6, 2007
0Patent Application Number
111053970
Date Filed
April 14, 2005
0Patent Primary Examiner
Patent abstract
The present invention provides A direct-type backlight having: a resin sealing member including at least one resin layer, which has a light reflecting section formed on the outermost surface of the resin sealing member; an optical semiconductor element sealed by the resin sealing member; and plural circular light scattering grooves formed concentrically on at least one surface of the resin layer, wherein an area of a circle in the center and an area among the respective concentric circles are substantially the same.
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