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. 12, 2005
Filed:
Mar. 08, 2002
Shuit-tong Lee, Kowloon, HK;
Xin Jiang, Braunschweig, DE;
Chun-sing Lee, Kowloon, HK;
Fu-lung Wong, Kowloon, HK;
Shuit-Tong Lee, Kowloon, HK;
Xin Jiang, Braunschweig, DE;
Chun-Sing Lee, Kowloon, HK;
Fu-Lung Wong, Kowloon, HK;
City University of Hong Kong, Kowloon, HK;
Abstract
An organic light-emitting diode is described in which the anode comprises midfrequency magnetron sputtered aluminum-doped zinc oxide to increase the device stability and to decrease the material cost. Due the novel deposition technique, ZnO:Al film with ITO-like electrical conductivity can be deposited and improved device performance, especially the long-term stability can be obtained which are attributed to the modification of the ZnO:Al conductivity and surface chemistry.