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:
Aug. 25, 2015
Filed:
Dec. 09, 2009
Marina E. Kondakova, Kendall, NY (US);
Denis Y. Kondakov, Kendall, NY (US);
Christopher T. Brown, Pittsburg, PA (US);
Tukaram K. Hatwar, Penfield, NY (US);
Jeffrey P. Spindler, Rochester, NY (US);
William J. Begley, Webster, NY (US);
Marina E. Kondakova, Kendall, NY (US);
Denis Y. Kondakov, Kendall, NY (US);
Christopher T. Brown, Pittsburg, PA (US);
Tukaram K. Hatwar, Penfield, NY (US);
Jeffrey P. Spindler, Rochester, NY (US);
William J. Begley, Webster, NY (US);
Global OLED Technology LLC, Herndon, VA (US);
Abstract
An OLED device comprises a cathode, an anode, and has therebetween a light emitting layer (LEL) comprising a phosphorescent emitting compound disposed in a host comprising a mixture of at least one electron transporting co-host which is a benzophenone derivative with a spiro substituent and at least one hole transporting co-host which is a triphenylamine which contains one trivalent nitrogen atom that is bonded only to carbon atoms, at least one of which is a member of an aromatic ring, wherein there is present an electron transporting layer contiguous to the LEL (HBL?) on the cathode side comprising an anthracene or a fluoranthene and wherein there is present an election injecting layer comprising a phenanthroline or a lithium quinolate contiguous to the cathode.