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:
Apr. 01, 2008
Filed:
Dec. 16, 2004
Applicant:
Shi-hao LI, Banciao, TW;
Inventor:
Shi-Hao Li, Banciao, TW;
Assignee:
AU Optronics Corporation, Hsinchu, TW;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 51/50 (2006.01); H01L 51/54 (2006.01); H01J 1/62 (2006.01); C09K 11/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
An organic light emitting device having a cathode, an anode and an organic layer structure disposed between the cathode and the anode, the organic layer structure comprising a hole injection layer doped with a p-type dopant, a hole transport layer, an emissive layer and an electron transport layer doped with an n-type dopant, wherein all of the layers in the organic layer structure are substantially made from the same organic host material. In particular, the organic host material is a bipolar organic material such as a derivative of fused aromatic rings. The emissive layer can be doped with a fluorescent dye or a phosphorescent dye.