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. 04, 2003
Filed:
Sep. 13, 1999
Kazuya Tada, Hyogo, JP;
Mitsuyoshi Onoda, Hyogo, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
An organic electroluminescence (EL) device having an image pattern includes a substrate, a first electrode formed on the substrate, a light emitting layer formed on the first electrode and a second electrode which is formed on the light emitting layer and oxygen-transmittable. The light-emitting layer includes an oxide layer selectively formed by the selective photo-oxidation using light and oxygen reached through the second electrode. The oxide layer serves as a non-light-emitting region. In such a configuration, the reliable organic EL device with high contrast can be provided in a short time from its order to completion.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile