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:
May. 05, 2009
Filed:
Apr. 10, 2006
Applicants:
Liang-sheng Liao, Rochester, NY (US);
Kevin P. Klubek, Rochester, NY (US);
Ching W. Tang, Rochester, NY (US);
Inventors:
Liang-Sheng Liao, Rochester, NY (US);
Kevin P. Klubek, Rochester, NY (US);
Ching W. Tang, Rochester, NY (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 51/00 (2006.01); H05B 33/00 (2006.01); H01J 1/62 (2006.01); H05B 33/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
An OLED device comprising an anode and a cathode spaced from the anode, two EL units disposed between the anode and cathode, such EL units being in contact with each other and each having at least one light emitting layer; and each EL unit further includes a p-type doped organic hole transporting layer disposed between the light emitting layer and the anode, and an n-type doped organic electron transporting layer disposed between the light emitting layer and the cathode.