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:
Nov. 16, 2010
Filed:
Jul. 09, 2007
Toshiyuki Matsuura, Mobara, JP;
Masahiro Tanaka, Chiba, JP;
Toshiyuki Matsuura, Mobara, JP;
Masahiro Tanaka, Chiba, JP;
Hitachi Displays, Ltd., Chiba, JP;
Abstract
The invention mainly provides an organic EL display device which can prevent the intrusion of moisture into an organic EL film by applying a thin film technique to the display device. For this end, the organic EL display device is configured such that (1) a lower electrode and an upper electrode are formed with an organic EL film sandwiched therebetween, an SiOxNy film which functions as a moisture proof film is formed to cover the upper electrode by a plasma CVD method, wherein the moisture proof film protects the organic EL film from moisture, (2) an inspection-use conductive film is formed on the moisture proof filmand (3) the presence or the non-presence of a defect in the moisture proof film is detected by applying a DC or AC voltage between the inspection-use conductive film and the upper electrode.