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. 02, 2014
Filed:
Jun. 06, 2012
Liann-be Chang, Tao-Yuan, TW;
Jun-yui Chen, New Taipei, TW;
Liann-Be Chang, Tao-Yuan, TW;
Jun-Yui Chen, New Taipei, TW;
Chang Gung University, Tao-Yuan, TW;
Abstract
A three dimensional (3-D) light-emitting-diode (LED) stack and method of manufacturing the same, comprising: a substrate; at least a first LED, stacked on said substrate; and at least a second LED, stacked on said first LED, such that energy gap of said first LED is smaller than energy gap of said second LED. In said stack mentioned above, a material of larger energy gap capable of emitting light of shorter wavelength can be penetrated by lights emitted by another material of smaller energy gap capable emitting lights of longer wavelength, such that lights are mixed together and then emitted, and said materials are put into a three dimensional stack arrangement, to form a brand new light emitting device of mixed light, so as to emit lights as required.