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:
Jun. 29, 2021
Filed:
Dec. 12, 2018
Samsung Display Co., Ltd., Yongin-si, KR;
Dong Chan Kim, Yongin-si, KR;
Won Jong Kim, Yongin-si, KR;
Ji Young Moon, Yongin-si, KR;
Dong Kyu Seo, Yongin-si, KR;
Myung Chui Yeo, Yongin-si, KR;
Ji Hye Lee, Yongin-si, KR;
Yoon Hyeung Cho, Yongin-si, KR;
Samsung Display Co., Ltd., Yongin-si, KR;
Abstract
A light emitting diode includes a first electrode overlapping a second electrode, an emission layer between the first and second electrodes. a first hole injection layer and a second hole injection layer between the first electrode and the emission layer, and a first hole transporting layer between the first hole injection layer and the second hole injection layer. Each of the first and second hole injection layers includes an inorganic dipole material. At least one of the first hole injection layer or the second hole injection layer including an organic material.