The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 06, 2007
Filed:
Apr. 14, 2005
Ichiro Suehiro, Osaka, JP;
Yuji Hotta, Osaka, JP;
Naoki Sadayori, Osaka, JP;
Noriaki Harada, Osaka, JP;
Kazuki Uawada, Osaka, JP;
Ichiro Suehiro, Osaka, JP;
Yuji Hotta, Osaka, JP;
Naoki Sadayori, Osaka, JP;
Noriaki Harada, Osaka, JP;
Kazuki Uawada, Osaka, JP;
Nitto Denko Corporation, Osaka, JP;
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.