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:
Oct. 01, 2013
Filed:
May. 17, 2012
Fu-bang Chen, Taichung, TW;
Wei-yu Yen, Taichung, TW;
Li-ping Chou, Taichung, TW;
Wei-chun Tseng, Taichung, TW;
Chih-sung Chang, Taichung, TW;
Fu-Bang Chen, Taichung, TW;
Wei-Yu Yen, Taichung, TW;
Li-Ping Chou, Taichung, TW;
Wei-Chun Tseng, Taichung, TW;
Chih-Sung Chang, Taichung, TW;
High Power Opto Inc., Taichung, TW;
Abstract
A reflection convex mirror structure is applied to a vertical light-emitting diode (LED) which comprises a P-type electrode, a permanent substrate, a binding layer, a buffer layer, a mirror layer, a P-type semiconductor layer, a light-emitting layer, an N-type semiconductor layer and an N-type electrode that are stacked in sequence. Between the P-type semiconductor layer and the mirror layer, a filler and a mirror are disposed right below the N-type electrode. The filler is made of a transparent material and has a convex surface facing the light-emitting layer. The mirror is formed on the convex surface of the filler. By utilizing the filler and the mirror to form the reflection convex mirror structure, excited light is reflected towards two sides, so that the excited light can dodge the N-type electrode without being shielded to increase light extraction efficiency.