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:
Jan. 31, 2006
Filed:
Mar. 18, 2003
Kevin P. Klubek, Webster, NY (US);
Liang-sheng Liao, Rochester, NY (US);
Ching W. Tang, Rochester, NY (US);
J. Ramon Vargas, Webster, NY (US);
Kevin P. Klubek, Webster, NY (US);
Liang-Sheng Liao, Rochester, NY (US);
Ching W. Tang, Rochester, NY (US);
J. Ramon Vargas, Webster, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A cascaded organic electroluminescent device includes an anode, a cathode, and a plurality of organic electroluminescent units disposed between the anode and the cathode, wherein the organic electroluminescent units comprise at least a hole-transporting layer and an electron-transporting layer. The device also includes a connecting unit disposed between each adjacent organic electroluminescent unit, wherein the connecting unit comprises, in sequence, an n-type doped organic layer, and a p-type doped organic layer wherein the p-type doped organic layer includes a dihydrophenazine derivative compound.