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. 04, 2000
Filed:
Dec. 23, 1996
Applicant:
Inventors:
Vladimir Bulovic, Metuchen, NJ (US);
Stephen R Forrest, Princeton, NJ (US);
Paul Burrows, Princeton, NJ (US);
Dmitri Z Garbuzov, Princeton, NJ (US);
Assignee:
The Trustees of Princeton University, Princeton, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
313504 ;
Abstract
An organic light emitting device (OLED) having an inverted structure including a cathode layer which is deposited on a substrate and on top of which an electron transporting layer (ETL), an electroluminescent (EL) layer, a hole transporting layer (HTL), a protection layer and an anode are deposited in sequence. The inverted OLED (IOLED) provides improved longevity, flexibility and efficiency over conventional OLEDs.