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:
Nov. 16, 2004
Filed:
Oct. 03, 2003
Liang-Sheng Liao, Rochester, NY (US);
Joseph K. Madathil, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
An organic electroluminescent device including an anode; a hole-transporting region disposed over the anode; wherein the hole-transporting region contains at least one hole-transporting material; a metal sub-layer disposed within the hole-transporting region; wherein the metal sub-layer contains at least one metal selected from group 4 through group 16 of the Periodic Table of Elements and the selected metal has a work-function higher than 4.0 eV; a light-emitting layer formed in contact with the hole-transporting region for producing light in response to hole-electron recombination; an electron-transporting layer disposed over the light-emitting layer; and a cathode disposed over the electron-transporting layer.