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. 18, 2009
Filed:
Jun. 21, 2005
Yi-yeol Lyu, Yongin-si, KR;
Young-hun Byun, Yongin-si, KR;
Das Rupasree Ragini, Suwon-si, KR;
Eun-sil Han, Yongin-si, KR;
Seok Chang, Daejeon-si, KR;
Lyong-sun Pu, Suwon-si, KR;
Jong-hyoup Lee, Seoul, KR;
Yi-Yeol Lyu, Yongin-si, KR;
Young-Hun Byun, Yongin-si, KR;
Das Rupasree Ragini, Suwon-si, KR;
Eun-Sil Han, Yongin-si, KR;
Seok Chang, Daejeon-si, KR;
Lyong-Sun Pu, Suwon-si, KR;
Jong-Hyoup Lee, Seoul, KR;
Samsung Mobile Display Co., Ltd., Yongin, Gyunggi-Do, KR;
Abstract
A cyclometalated transition metal complex emitting phosphorescence of high efficiency and an organic electroluminescent display device employing the same are provided. The cyclometalated transition metal complex has a transition metal atom and a phosphorus ligand having at least one alkylene oxide and a phosphorus atom. The phosphorus atom is bound to the transition metal atom. The cyclometalated transition metal complex can be employed when forming an organic film of an organic electroluminescent display device, can emit light at a wavelength range of 400 nm to 650 nm, and can emit white light as well when used with a green light emitting material and a red light emitting material.