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:
Sep. 14, 1999
Filed:
Apr. 23, 1997
Satoshi Miyaguchi, Tsurugashima, JP;
Pioneer Electric Corporation, Tokyo, JP;
Abstract
A method for manufacturing an organic electroluminescent display device including one or more organic electroluminescent elements arranged on a light-permeable substrate, each element having a cathode, an emitting layer made of one or more organic substances and an anode is capable of forming, at a high accuracy, an emitting layer with various patterns. The method includes the steps of: layering the anode material with a pattern on a light-permeable substrate; layering secondly in turn the one or more organic substances, the cathode material, the protective layer on the anode material and the light-permeable substrate; layering thirdly a resist layer on the layered protective layer to pattern the layered resist layer with a shape corresponding to the emitting layer; dry-etching the layered anode material, the layered one or more organic substances, the layered cathode material and the layered protective layer in accordance with the pattern of the resist layer; and repeating the second and third layering steps and the dry-etching step to make an arrangement of the one or more organic electroluminescent elements.