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:
Nov. 24, 2020
Filed:
Nov. 13, 2019
Sakai Display Products Corporation, Sakai, JP;
Yozo Narutaki, Osaka, JP;
Katsuhiko Kishimoto, Osaka, JP;
Sakai Display Products Corporation, Osaka, JP;
Abstract
An organic electroluminescent device includes a substrate, driving circuit layer, inorganic protective layer, organic flattening layer, organic electroluminescent element layer, and TFE structure. The TFE structure includes a first inorganic barrier layer, organic barrier layer, and second inorganic barrier layer. The organic flattening layer is formed in a region where the inorganic protective layer is formed, organic electroluminescent elements are located in a region where the organic flattening layer is formed, and an outer perimeter of the TFE structure crosses lead wires and is present between an outer perimeter of the organic flattening layer and an outer perimeter of the inorganic protective layer. In a region where the inorganic protective layer and the first inorganic barrier layer are in direct contact with each other on the lead wires, a tapering angle of a side surface of a cross-section of the first inorganic barrier layer is smaller than 90 degrees.