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. 30, 2013
Filed:
Oct. 26, 2007
William J. Begley, Webster, NY (US);
Tukaram K. Hatwar, Penfield, NY (US);
Natasha Andrievsky, Webster, NY (US);
William J. Begley, Webster, NY (US);
Tukaram K. Hatwar, Penfield, NY (US);
Natasha Andrievsky, Webster, NY (US);
Global OLED Technology, LLC., Wilmington, DE (US);
Abstract
An OLED device comprises a cathode, an anode, and has therebetween: (a) a light emitting layer containing a non-light-emitting fluoranthene compound with a 7,10-diaryl substituted fluoranthene nucleus having no aromatic rings annulated to the fluoranthene nucleus; and (b) comprising still further an additional layer, containing an organic alkali metal compound, located between the cathode and the electron transporting layer. OLED devices of the invention provide reduced drive voltage and improved color, and provide embodiments with other improved features such as operational stability and high luminance.