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:
Jul. 10, 2007
Filed:
Dec. 30, 2005
Te-chung Wang, Hsinchu, TW;
Jung-tsung Hsu, Hsinchu, TW;
Chang-cheng Chuo, Hsinchu, TW;
Ching-en Tsai, Hsinchu, TW;
Chih-ming Lai, Hsinchu, TW;
Te-Chung Wang, Hsinchu, TW;
Jung-Tsung Hsu, Hsinchu, TW;
Chang-Cheng Chuo, Hsinchu, TW;
Ching-En Tsai, Hsinchu, TW;
Chih-Ming Lai, Hsinchu, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A quantum dot/quantum well light emitting diode (LED) is provided with a LED at one side of a substrate, and a second light emitting layer and a third light emitting layer at the other side of the substrate. When a proper forward bias is applied to the LED to emit a first light by the first light emitting layer, the first light is used to excite the second light emitting layer and the third light emitting layer to generate the second light output and the third light output of different colors respectively. Then, the light output of a desired color can be generated by mixing the first light, the second light and the third light.