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:
Jul. 20, 1999
Filed:
May. 01, 1997
Franky So, Tempe, AZ (US);
Song Q Shi, Phoenix, AZ (US);
Cynthia A Gorsuch, Tempe, AZ (US);
Hsing-Chung Lee, Calabasas, CA (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
An organic electroluminescent device with graded region is formed, which includes a hole transporting region formed of hole transporting organic material, an electron transporting region formed of electron transporting organic material, and a graduated region disseminated between the hole transporting region and the electron transporting region. The graduated region changes, either in steps or continuously, from hole transporting organic material adjacent the hole transporting region to electron transporting organic material adjacent the electron transporting region. Electrical contacts are formed in communication with the hole transporting region and the electron transporting region.