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. 02, 2021
Filed:
May. 01, 2019
Applicant:
Cynora Gmbh, Bruchsal, DE;
Inventors:
Georgios Liaptsis, Mannheim, DE;
Jan Birnstock, Dresden, DE;
Assignee:
CYNORA GMBH, Bruchsal, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/30 (2006.01); H01L 51/50 (2006.01); H01L 51/52 (2006.01); H01L 51/00 (2006.01);
U.S. Cl.
CPC ...
H01L 51/5024 (2013.01); H01L 51/5016 (2013.01); H01L 51/5032 (2013.01); H01L 51/5296 (2013.01); H01L 51/0035 (2013.01); H01L 51/0056 (2013.01); H01L 51/0059 (2013.01); H01L 51/0071 (2013.01); H01L 51/0094 (2013.01); H01L 51/5056 (2013.01); H01L 51/5072 (2013.01); H01L 2251/552 (2013.01);
Abstract
The present invention relates to organic electroluminescent devices comprising a light-emitting layer B comprising two host materials, a n-type (electron-transporting) and a p-type (hole-transporting) host material, a thermally activated delayed fluorescence (TADF) material and an emitter material, which exhibits a narrow—expressed by a small full width at half maximum (FWHM)—deep-blue emission at an emission maximum of 440 to 475 nm. Further, the present invention relates to a method for generating blue light by means of an organic electroluminescent device according to the present invention.