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. 29, 2008
Filed:
Jul. 09, 2004
Applicants:
Shi-hao Lee, Banciao, TW;
Chung-wen Ko, Sijhih, TW;
Inventors:
Shi-Hao Lee, Banciao, TW;
Chung-Wen Ko, Sijhih, TW;
Assignee:
AU Optronics Corporation, Hsin-Chu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B 33/20 (2006.01); H05B 33/14 (2006.01); H01L 51/50 (2006.01);
U.S. Cl.
CPC ...
Abstract
A high contrast organic light-emitting device (OLED) includes a composite electron transport layer including a generally transparent electron transport layer and a light-absorbent electron transport layer formed of buckminsterfullerene. The light-absorbent electron transport layer absorbs environmental light and the OLED provides an undistorted display with high contrast. The light-absorbent electron transport layer may be disposed directly between the generally transparent electron transport layer which may be formed of Alq, and an LiF electron injection layer of a metallic cathode.