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:
Dec. 08, 2009
Filed:
May. 06, 2005
Liang-sheng Liao, Rochester, NY (US);
Wojciech K. Slusarek, Rochester, NY (US);
Michele L. Ricks, Rochester, NY (US);
Ralph H. Young, Rochester, NY (US);
Dustin L. Comfort, Webster, NY (US);
Liang-Sheng Liao, Rochester, NY (US);
Wojciech K. Slusarek, Rochester, NY (US);
Michele L. Ricks, Rochester, NY (US);
Ralph H. Young, Rochester, NY (US);
Dustin L. Comfort, Webster, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
An OLED includes an anode, a light-emitting layer disposed over the anode, and a first electron-injecting layer disposed over the light-emitting layer, wherein the first electron-injecting layer includes at least one organic host material having a reduction potential less than −1.0 V vs. a Saturated Calomel Electrode and at least one dopant material capable of reducing the organic host material. The OLED also includes a second electron-injecting layer disposed in contact with the first electron-injecting layer, wherein the second electron-injecting layer includes at least one organic material having a reduction potential greater than −1.0 V vs. a Saturated Calomel Electrode, and a cathode disposed over the second electron-injecting layer.