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:
Jan. 13, 2015
Filed:
Feb. 08, 2013
Toppan Printing Co., Ltd., Tokyo, JP;
Makoto Nishizawa, Tokyo, JP;
Hiroyuki Chinone, Tokyo, JP;
Toppan Printing Co., Ltd., , JP;
Abstract
A method is provided for forming a uniform light emitting medium layer by a relief printing method without occurrence of printing defects. The method includes producing an organic EL device containing a substrate having thereon a pixel electrode, pixel regions that are demarcated with a partition wall on the pixel electrode, a light emitting medium layer having a light emitting layer containing at least an organic light emitting material on the pixel regions, and a counter electrode facing the pixel electrode. The method can have a step of forming at least one layer constituting the light emitting medium layer by a relief printing method, and the ink used in the relief printing method being transferred from two or more adjacent relief patterns within one of the pixel regions and being integrated by flow thereof to form the light emitting medium layer.