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:
Jul. 08, 2008
Filed:
Apr. 24, 2003
Tomoyuki Tachikawa, Tokyo, JP;
Toru Miyake, Tokyo, JP;
Shinichi Handa, Tokyo, JP;
Norihito Ito, Tokyo, JP;
Tomoyuki Tachikawa, Tokyo, JP;
Toru Miyake, Tokyo, JP;
Shinichi Handa, Tokyo, JP;
Norihito Ito, Tokyo, JP;
Dai Nippon Printing Co., Ltd., Tokyo-to, JP;
Abstract
The main object of the present invention is to provide a method for manufacturing an EL element, capable of preventing deterioration of the element characteristic by the developing agent or the rinsing agent, while providing the advantages of the photolithography method of high light emitting efficiency and taking out efficiency, the manufacturing process simplicity, and the highly sophisticated pattern formation. In order to achieve the above mentioned object, the present invention provides a method for manufacturing an organic EL element comprising at least a patterned organic light emitting layer, wherein the patterning is conducted by etching with a protecting layer pattern laminated on an organic light emitting layer.