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:
Aug. 10, 2010
Filed:
Sep. 28, 2005
Applicants:
Stelios A. Choulis, San Jose, CA (US);
Mathew Mathai, Santa Clara, CA (US);
Vi-en Choong, San Jose, CA (US);
Franky SO, Gainesville, FL (US);
Inventors:
Stelios A. Choulis, San Jose, CA (US);
Mathew Mathai, Santa Clara, CA (US);
Vi-En Choong, San Jose, CA (US);
Franky So, Gainesville, FL (US);
Assignee:
Osram Opto Semiconductors GmbH, Regensburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 33/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Techniques are described for forming an organic light emitting diode device with improved device efficiency. Materials having at least one energy level that is similar to those of a phosphorescent light emitting material in the diode are incorporated into the device to directly inject holes or electrons to the light emitting material.