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:
May. 07, 2013
Filed:
Jul. 21, 2011
Chao-hsiung Chang, Hsinchu, TW;
Ming-ta Tsai, Hsinchu, TW;
Chao-Hsiung Chang, Hsinchu, TW;
Ming-Ta Tsai, Hsinchu, TW;
Advanced Optoelectronic Technology, Inc., Hsinchu Hsien, TW;
Abstract
An LED package includes a substrate, a blue LED chip, an encapsulant and a fluorescent layer. The blue LED chip is arranged on the substrate. The encapsulant covers the blue LED chip. The fluorescent layer is arranged on a top surface of the encapsulant. The fluorescent layer includes a first fluorescent area above the blue LED chip and a second fluorescent area encircling the first fluorescent area. The first fluorescent area includes red fluorescent substance and green fluorescent substance mixed therein. The second fluorescent area includes yellow fluorescent substance mixed therein.