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:
Aug. 24, 2010
Filed:
Feb. 04, 2008
Applicants:
Jui-kang Yen, Taipei, TW;
Yung-wei Chen, Taichung, TW;
Inventors:
Jui-Kang Yen, Taipei, TW;
Yung-Wei Chen, Taichung, TW;
Assignee:
SemiLEDs Optoelectronics Co., Ltd., Chu-Nan, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
Light-emitting diode (LED) devices which can produce a uniform white light with a broad emission spectrum and a high color rendering index (CRI) are provided. For example, the emission spectrum of LED devices as described herein may provide more red light and yield a higher CRI light when compared to conventional white LEDs. For some embodiments, the various lights emitted from different layers of the LED device may mix at a light-scattering encapsulation layer and become a uniform white light.