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:
May. 04, 2021
Filed:
Oct. 10, 2018
Cynora Gmbh, Bruchsal, DE;
Daniel Zink, Bruchsal, DE;
Anastasia Resetnic, Bruchsal, DE;
CYNORA GmbH, Bruchsal, DE;
Abstract
Organic molecules are provided for use in optoelectronic devices. The organic molecules are purely organic molecules, i.e., they do not contain any metal ions. The organic molecules exhibit emission maxima in the blue, sky-blue or green spectral range. The organic molecules exhibit emission maxima between 420 nm and 520 nm, between 440 nm and 495 nm, or between 450 nm and 470 nm. The photoluminescence quantum yields of the organic molecules are 20% or more. The molecules exhibit thermally activated delayed fluorescence (TADF). The use of the molecules in an optoelectronic device, e.g., an organic light-emitting diode (OLED) leads to higher efficiencies of the device. Corresponding OLEDs have a higher stability than OLEDs with known emitter materials and comparable color.