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US Patent 7581853 LED package and backlight unit using the same

Patent 7581853 was granted and assigned to Samsung on September, 2009 by the United States Patent and Trademark Office.

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Patent
Patent

Patent attributes

Current Assignee
Samsung
Samsung
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
7581853
Date of Patent
September 1, 2009
Patent Application Number
11594756
Date Filed
November 9, 2006
Patent Primary Examiner
‌
Sharon E. Payne
Patent abstract

The invention relates to an LED package having a large beam angle of light emitted from an LED, simplifying a shape of a lens and an assembly process, and to a backlight unit using the same. The LED package includes a housing with a seating recess formed therein and at least one LED seated in the seating recess. The LED package also includes a lens having a predetermined sag on an upper side thereof, covering an upper part of the LED. The LED package and the backlight unit using the same can emit light uniformly without bright spots formed in an output screen, uses a simpler shaped lens with an increased beam angle, and minimizes a color mixing region to achieve miniaturization.

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