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:
Nov. 07, 2017
Filed:
Jun. 06, 2012
Chun Lin, Ewing, NJ (US);
Chuanjun Xia, Ewing, NJ (US);
Bin MA, Ewing, NJ (US);
Lichang Zeng, Ewing, NJ (US);
Alan Deangelis, Ewing, NJ (US);
Edward Barron, Ewing, NJ (US);
Chun Lin, Ewing, NJ (US);
Chuanjun Xia, Ewing, NJ (US);
Bin Ma, Ewing, NJ (US);
Lichang Zeng, Ewing, NJ (US);
Alan DeAngelis, Ewing, NJ (US);
Edward Barron, Ewing, NJ (US);
UNIVERSAL DISPLAY CORPORATION, Ewing, NJ (US);
Abstract
Novel heteroleptic iridium carbene complexes are provided. The complexes have lower-than expected sublimation temperatures, which is beneficial for the processing of these materials in solid state applications. Selective substitution of the ligands provides for phosphorescent compounds that are suitable for use in a variety of OLED devices. The carbene complexes can also be used as materials in a hole blocking layer and/or an electron transport layer to improve device performance.