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. 26, 2019
Filed:
Aug. 02, 2018
Electronics and Telecommunications Research Institute, Daejeon, KR;
Byoung-Hwa Kwon, Daejeon, KR;
Chul Woong Joo, Daejeon, KR;
Jonghee Lee, Daejeon, KR;
Hyunkoo Lee, Daejeon, KR;
Hyunsu Cho, Cheongju, KR;
Nam Sung Cho, Daejeon, KR;
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon, KR;
Abstract
Provided is a display device and a manufacturing method thereof. More specifically, the present invention relates to a display device including a nickel oxide thin film co-doped with a copper monovalent cation and a copper divalent cation, and a manufacturing method thereof. The present invention provides a display device including a substrate, a first electrode layer disposed on the substrate, a first common layer disposed on the substrate, a light emitting layer disposed on the first common layer, a second common layer disposed on the light emitting layer, and a second electrode layer disposed on the second common layer, wherein the first common layer includes a nickel oxide thin film co-doped with a first metal cation and a second metal cation, and the oxidation number of the first metal cation and the oxidation number the second metal cation are different from each other.