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:
Jul. 29, 2025
Filed:
Oct. 12, 2021
Samsung Display Co., Ltd., Yongin-si, KR;
Ryuhei Furue, Yokohama, JP;
Hirokazu Kuwabara, Yokohama, JP;
Makoto Yamamoto, Yokohama, JP;
Yuji Suzaki, Yokohama, JP;
Yuuki Miyazaki, Yokohama, JP;
Samsung Display Co., Ltd., Yongin-si, KR;
Abstract
An organic electroluminescence device of one or more embodiments includes a first electrode, a hole transport region disposed on the first electrode, an emission layer disposed on the hole transport region, an electron transport region disposed on the emission layer and a second electrode disposed on the electron transport region, wherein the first electrode and the second electrode each independently includes at least one selected among Ag, Mg, Cu, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, Li, Ca, LiF/Ca, LiF/Al, Mo, Ti, In, Sn, Zn, compounds thereof, mixtures thereof, and oxides thereof, and the emission layer includes a polycyclic compound represented by Formula 1, thereby showing long life and high efficiency: