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. 26, 2005
Filed:
Jan. 30, 2004
Margaret J. Helber, Webster, NY (US);
J. Ramon Vargas, Webster, NY (US);
Margaret J. Helber, Webster, NY (US);
J. Ramon Vargas, Webster, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
Disclosed is an electroluminescent device comprising a light emitting layer comprising a boron complex wherein the boron is bonded to a nitrogen atom of a 6-membered heteroaromatic ring group and to a nitrogen atom of a 5-membered heteroaromatic ring group, provided that the 5- and 6-membered heteroaromatic ring groups are further connected by a methene bridge, and provided further that the 5-membered heteroaromatic ring contains at least one additional heteroatom that is divalent or trivalent. Also disclosed is a device containing the electroluminescent device and a process for emitting light using the device.