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:
Oct. 04, 2011
Filed:
Mar. 25, 2008
Kenji Kasahara, Niihama, JP;
Kenji Kasahara, Niihama, JP;
Sumitomo Chemical Company, Limited, Tokyo, JP;
Abstract
The present invention is a method for manufacturing an organic thin-film transistor substrate including an organic thin-film transistor as a transistor element, and an object of the invention is to provide a manufacturing method capable of forming a bank in a smaller number of steps. The method for manufacturing the organic thin-film transistor substrate of the present invention, in which an organic thin-film transistor is formed in a first region on a substrate, a second region for forming a light-emitting element in abutment with the first region is included, and a bank part is formed in a peripheral part of the second region, is characterized by including: a first step of forming the organic thin-film transistor in the first region on the substrate and forming at least one of the gate insulation layer and the organic semiconductor layer included by this organic thin-film transistor as far as the second region, thereby forming, in the second region, a bank precursor layer composed of a laminated structure formed on the second region; and a second step of removing the regions of the bank precursor layer other than the peripheral part, thereby forming the bank part made of the remaining bank precursor layer.