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:
Mar. 12, 2002
Filed:
Aug. 30, 2000
Applicant:
Inventors:
Harumi Suzuki, Kariya, JP;
Masao Nagakubo, Nishikamo-gun, JP;
Assignee:
Denso Corporation, Kariya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/10 ;
U.S. Cl.
CPC ...
G09G 3/10 ;
Abstract
An organic EL element has an anode made of transparent conductive material such as ITO and a cathode made of metallic material such as Al. Further, a hole injection layer, a hole transport layer, an electron transport layer, and an electron injection layer are disposed between the anode and the cathode. The cathode is composed of a thin film layer and a thick film layer partially overlapping with the thin film layer. The thin film layer can transmit light and the thick film layer can suppress an increase in wiring resistance of the cathode.