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:
Apr. 28, 2026
Filed:
Sep. 01, 2023
Xiamen Tianma Display Technology Co., Ltd., Xiamen, CN;
Tomohide Shindou, Kawasaki, JP;
Shigeru Mori, Kawasaki, JP;
XIAMEN TIANMA DISPLAY TECHNOLOGY CO., LTD., Xiamen, CN;
Abstract
An organic EL device includes organic layers, an anode electrode, a cathode electrode, and an insulating layer covering a part of the anode electrode. The anode electrode is disposed above a bank layer and in an opening of the bank layer. The organic layers cover the anode electrode and a part of the insulating layer. The anode electrode includes a lower conductive layer, a reflective metal layer that reflects light coming from the organic layers, and a light-transmissive upper conductive layer layered in this order toward the cathode electrode. The upper conductive layer includes a first upper conductive layer connected to the organic layers and a second upper conductive layer covered with the insulating layer. The second upper conductive layer has a lower oxygen content than the first upper conductive layer. The second upper conductive layer has a higher resistivity than the first upper conductive layer.