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. 14, 2026
Filed:
Feb. 28, 2022
Samsung Electronics Co., Ltd., Suwon-si, KR;
Ewha University—industry Collaboration Foundation, Seoul, KR;
Yongsik Jung, Seoul, KR;
Youngmin You, Seoul, KR;
Juhyun Kim, Seoul, KR;
Yusung Chun, Goyang-si, KR;
Joonghyuk Kim, Seoul, KR;
Dayoon Song, Daejeon, KR;
Dongyeun Jeong, Seoul, KR;
Seunghee Choi, Seoul, KR;
Sooghang Ihn, Seoul, KR;
Hyeonho Choi, Hwaseong-si, KR;
EWHA UNIVERSITY—INDUSTRY COLLABORATION FOUNDATION, Seoul, KR;
SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do, KR;
Abstract
A light-emitting device including an organic layer disposed between a first electrode and a second electrode, the organic layer comprising a fluorescent compound, wherein upon excitation, excitons in an-π* excited state of the fluorescent compound migrate to aπ-π* excited state of the fluorescent compound by reverse intersystem crossing with a Rate (rISC), and then undergo radiative transition to a ground state to emit light via fluorescence. The fluorescent compound is defined by a ratio of Rate (rISC) to Rate (IC) is 0.5 or greater. An electronic apparatus including the light-emitting device, and the fluorescent compound.