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. 27, 2021
Filed:
Oct. 05, 2016
Applicant:
Universal Display Corporation, Ewing, NJ (US);
Inventors:
Raymond Kwong, Fo Tan, HK;
Kit Yee Tsang, Shatin, HK;
Siu Tung Lam, Apleichau, HK;
Chi Hang Lee, Chaiwan, HK;
Sze Kui Lam, Kowloon, HK;
Assignee:
UNIVERSAL DISPLAY CORPORATION, Ewing, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/50 (2006.01); H01L 51/54 (2006.01); H01L 51/00 (2006.01); C09K 11/06 (2006.01); C09K 11/02 (2006.01); C07F 15/00 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0085 (2013.01); C07F 15/0033 (2013.01); C09K 11/025 (2013.01); C09K 11/06 (2013.01); C09K 2211/1007 (2013.01); C09K 2211/1044 (2013.01); C09K 2211/1088 (2013.01); C09K 2211/185 (2013.01); H01L 51/5016 (2013.01);
Abstract
Ir phenyl parazolepyrazole complexes substituted with one or more strong electron withdrawing groups such as cyano groups resulted in enhancing the metal to ligand charge transfer (MLCT) which in turn resulted in enhanced emission efficiency and red shifted emission.