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. 24, 2012
Filed:
Dec. 05, 2006
Young-hun Byun, Yongin-si, KR;
Hee-kyung Kim, Anyang-si, KR;
Lyong-sun Pu, Seongnam-si, KR;
Shinichiro Tamura, Seongnam-si, KR;
Das Rupasree Ragini, Suwon-si, KR;
Jong-jin Park, Yongin-si, KR;
Byoung-ki Choi, Hwaseong-si, KR;
Yi-yeol Lyu, Yongin-si, KR;
O-hyun Kwon, Seoul, KR;
Young-mok Son, Hwaseong-si, KR;
Young-Hun Byun, Yongin-si, KR;
Hee-Kyung Kim, Anyang-si, KR;
Lyong-Sun Pu, Seongnam-si, KR;
Shinichiro Tamura, Seongnam-si, KR;
Das Rupasree Ragini, Suwon-si, KR;
Jong-Jin Park, Yongin-si, KR;
Byoung-Ki Choi, Hwaseong-si, KR;
Yi-Yeol Lyu, Yongin-si, KR;
O-Hyun Kwon, Seoul, KR;
Young-Mok Son, Hwaseong-si, KR;
Samsung Mobile Display Co., Ltd., Giheung-Gu, Yongin, Gyunggi-Do, KR;
Abstract
Provided is a cyclometalated transition metal complex represented by Formula 1, Formula 2 or Formula 3: By including a new ancillary ligand, the cyclometalated transition metal complex can efficiently emit red light using a phosphor by intersystem crossing (ISC) of excitons to triplet states and then metal to ligand charge transfer (MLCT). An organic light emitting device prepared using the transition metal compound shows high luminous efficiency and high external quantum efficiency.