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. 08, 2007
Filed:
Dec. 13, 2005
Hyoung Dong Kang, Kyungki-do, KR;
Hyoung Dong Kang, Kyungki-do, KR;
Samsung Electro-Mechanics Co. Ltd., Suwon, Kyungki-Do, KR;
Abstract
The present invention provides a wavelength-convertible LED which has first and second surfaces, including first and second conductivity-type cladding layers and an active layer formed between the first and second conductivity-type cladding layers to emit a specific wavelength light. The invention also includes at least a piezoelectric layer on at least one of the first and second surfaces of the semiconductor LED with its thickness variable according to the applied voltage, and a rigid frame made of substantially non-resilient rigid material surrounding the semiconductor LED and the at least one piezoelectric layer such that the increase of the thickness of the piezoelectric layer is applied to the semiconductor LED as pressure. The invention further includes a plurality of terminals on the rigid frame, connected to the first and second conductivity-type cladding layers, and the piezoelectric layer.