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. 29, 2025
Filed:
Jan. 03, 2018
Samsung Display Co., Ltd., Yongin-si, KR;
Junta Fuchiwaki, Yokohama, JP;
Ikuo Sasaki, Yokohama, JP;
Shuri Sato, Yokohama, JP;
Nobutaka Akashi, Yokohama, JP;
Samsung Display Co., Ltd., Yongin-si, KR;
Abstract
An organic electroluminescence device including a first electrode, a hole transport region on the first electrode, an emission layer on the hole transport region, an electron transport region on the emission layer, and a second electrode on the electron transport region, wherein the hole transport region includes a first heterocyclic compound including 1 to 3 structures derived from a compound represented by Formula 1 below, and the emission layer includes a second heterocyclic compound including 1 or 2 structures derived from a compound represented by Formula 1.