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:
Mar. 23, 2010
Filed:
Sep. 08, 2005
Steve Meng-yuan Hong, Hsinchu, TW;
Jen-shui Wang, Hsinchu, TW;
Tzu-feng Tseng, Hsinchu, TW;
Ching-san Tao, Hsinchu, TW;
Wen-huang Liu, Hsinchu, TW;
Min-hsun Hsieh, Hsinchu, TW;
Steve Meng-Yuan Hong, Hsinchu, TW;
Jen-Shui Wang, Hsinchu, TW;
Tzu-Feng Tseng, Hsinchu, TW;
Ching-San Tao, Hsinchu, TW;
Wen-Huang Liu, Hsinchu, TW;
Min-Hsun Hsieh, Hsinchu, TW;
Epistar Corporation, Hsinchu, TW;
Abstract
A light emitting device having a circuit protection unit is provided. The circuit protection unit has a low-resistance layer and a potential barrier layer, wherein a barrier potential exists at the interface between the low-resistance layer and the potential barrier layer. The circuit protection unit is electrically connected with the light emitting device. When an electrostatic discharge or excessive forward current is occurred in the light emitting device, the circuit protection unit provides a rectifying function for preventing damages caused by static electricity or excessive forward current to the light emitting device.