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:
Feb. 02, 2021
Filed:
Apr. 29, 2016
Samsung Display Co., Ltd., Yongin-si, KR;
Eunji Choi, Bucheon-si, KR;
Jahyun Im, Yongin-si, KR;
Samsung Display Co., Ltd., Yongin-si, KR;
Abstract
An organic electroluminescent device and display, the device including a first electrode; a second electrode on the first electrode; an emission layer between the first and second electrodes; and an electron transport layer between the emission layer and the second electrode, the electron transport layer including a first electron transport layer on the emission layer; a second electron transport layer on the first electron transport layer; and a third electron transport layer on the second electron transport layer, wherein the first electron transport layer includes a first electron transport material, the second electron transport layer includes the first electron transport material, a second electron transport material, and a third electron transport material, the third electron transport layer includes the second electron transport material and the third electron transport material, and the first, second, and third electron transport materials are different from one another.