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:
Sep. 06, 2011
Filed:
Apr. 19, 2007
Jeong-wook Lee, Yongin-si, KR;
Jin-seo Im, Yongin-si, KR;
Bok-ki Min, Yongin-si, KR;
Kwang-hyeon Baik, Yongin-si, KR;
Heon-su Jeon, Yongin-si, KR;
Jeong-wook Lee, Yongin-si, KR;
Jin-seo Im, Yongin-si, KR;
Bok-ki Min, Yongin-si, KR;
Kwang-hyeon Baik, Yongin-si, KR;
Heon-su Jeon, Yongin-si, KR;
Abstract
A semiconductor light emitting device having a multiple pattern structure greatly increases light extraction efficiency. The semiconductor light emitting device includes a substrate and a semiconductor layer, an active layer, and an electrode layer formed on the substrate, a first pattern defining a first corrugated structure between the substrate and the semiconductor layer, and a second pattern defining a second corrugated structure on the first corrugated structure of the first pattern.