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:
Mar. 26, 2002
Filed:
Dec. 09, 1998
Applicant:
Inventors:
Jianmin Shi, Webster, NY (US);
Ching W. Tang, Rochester, NY (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B 3/300 ;
U.S. Cl.
CPC ...
H05B 3/300 ;
Abstract
An organic electroluminescent device, including an anode and cathode and therebetween a hole transport layer; and an electron tranport layer disposed in an operative relationship with the hole transport layer; wherein the hole transport layer includes at least an aromatic hydrocarbon or fused hydrocarbon containing at least 20 carbon atoms and having an ionization potential greater than 5.0 eV.