IDiyas

For the Inventor, By the Inventor

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.:

US 10256419 B1

PDFFull Text
Date of Patent:
Apr. 09, 2019

Filed:

Nov. 05, 2015

Organic electroluminescent materials and devices

Applicant:

Universal Display Corporation, Ewing, NJ (US);

Inventors:

Jason Brooks, Philadelphia, PA (US);

Geza Szigethy, Ewing, NJ (US);

Glenn Morello, Pittsburgh, PA (US);

Jun Deng, Murrysville, PA (US);

Peter I. Djurovich, Long Beach, CA (US);

Hsiao-Fan Chen, Lawrenceville, NJ (US);

Assignee:

UNIVERSAL DISPLAY CORPORATION, Ewing, NJ (US);

Attorney:

Duane Morris LLP

Primary Examiner:

Andrew K Bohaty

Int. Cl.
CPC ...
H01L 51/54 (2006.01); C09K 11/06 (2006.01); H01L 51/00 (2006.01); C07F 15/00 (2006.01); C07D 471/16 (2006.01); C07D 498/16 (2006.01); C07D 513/16 (2006.01); C09K 11/02 (2006.01); H01L 27/32 (2006.01); C07F 7/18 (2006.01); H01L 51/50 (2006.01); H01L 51/52 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0085 (2013.01); C07D 471/16 (2013.01); C07D 498/16 (2013.01); C07D 513/16 (2013.01); C07F 7/1804 (2013.01); C07F 15/0033 (2013.01); C07F 15/0086 (2013.01); C09K 11/025 (2013.01); C09K 11/06 (2013.01); H01L 27/32 (2013.01); H01L 51/005 (2013.01); H01L 51/0072 (2013.01); H01L 51/0073 (2013.01); H01L 51/0074 (2013.01); H01L 51/0087 (2013.01); C09K 2211/1007 (2013.01); C09K 2211/1011 (2013.01); C09K 2211/1022 (2013.01); C09K 2211/1044 (2013.01); C09K 2211/1088 (2013.01); C09K 2211/185 (2013.01); H01L 51/5012 (2013.01); H01L 51/5016 (2013.01); H01L 51/5206 (2013.01); H01L 51/5221 (2013.01);
Abstract

Imidazophenanthridine ligands and metal complexes are provided. The compounds exhibit improved stability through a linking substitution that links a nitrogen bonded carbon of an imidizole ring to a carbon on the adjacent fused aryl ring. The compounds may be used in organic light emitting devices, particularly as emissive dopants, providing devices with improved efficiency, stability, and manufacturing. In particular, the compounds provided herein may be used in blue devices having high efficiency.

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