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:
Sep. 07, 1999
Filed:
Apr. 14, 1997
Applicant:
Inventors:
Jang-Joo Kim, Daejeon, KR;
Heuk Park, Daejeon, KR;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
257 40 ; 257 86 ; 257 87 ; 257 98 ; 257103 ;
Abstract
An organic light emitting diode having a lower electrode formed on a glass substrate, and an emissive layer and an upper electrode formed atop each other on the lower electrode. A thin insulating layer is disposed between the emissive layer and the lower or upper electrode. The thin insulating layer has a thickness within a range where tunneling occurs. The thin insulating layer is inserted between the emissive layer and electrode, so as to balance the injection of electrons a holes into the emissive layer.
Kim, Jang-Joo. (1999). Organic light emitting diode having thin insulating layer (U.S. Patent No. 5949089). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5949089
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile