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:
Apr. 08, 2014
Filed:
Jun. 04, 2009
Sung-jin Choi, Yongin, KR;
Ok-keun Song, Yongin, KR;
Hye-in Jeong, Yongin, KR;
Young-mo Koo, Yongin, KR;
Min-woo Lee, Yongin, KR;
Sung-Jin Choi, Yongin, KR;
Ok-Keun Song, Yongin, KR;
Hye-In Jeong, Yongin, KR;
Young-Mo Koo, Yongin, KR;
Min-Woo Lee, Yongin, KR;
Samsung Display Co., Ltd., , KR;
Abstract
Provided is an organic light emitting diode which can easily control color coordinates and improve a device's life span characteristic by using an auxiliary dopant having a higher band gap energy than that of a host, and preferably, having an absolute value of the highest occupied molecular orbital energy level equal to or higher than that of the host, or an absolute value of the lowest unoccupied molecular orbital energy level equal to or lower than that of the host. The organic light emitting diode includes a first electrode, an emission layer disposed on the first electrode and including a host, an emitting dopant and an auxiliary dopant, and a second electrode disposed on the emission layer. Here, the auxiliary dopant has a higher band gap energy than the host. A method of fabricating the organic light emitting diode is provided.