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:
Aug. 11, 2020
Filed:
Aug. 28, 2015
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Sangyeob Lee, Hwaseong-si, KR;
Sangdong Kim, Seoul, KR;
Jiwhan Kim, Seoul, KR;
Banglin Lee, Suwon-si, KR;
Seungyeon Kwak, Yongin-si, KR;
Hyeonho Choi, Seoul, KR;
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Abstract
An organic light-emitting device (OLED) includes a first electrode, a second electrode, an emission layer between the first electrode and the second electrode and including an electron-transporting host and a hole-transporting host, a hole transport region between the first electrode and the emission layer and including a hole transport layer, and an electron transport region between the emission layer and the second electrode and including an electron transport layer, wherein the OLED satisfies Equations 1 and 2 below:0.75 eV≤||≤0.90 eV  <Equation 1>|()−()|<0.15 eV  <Equation 2>