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:
Dec. 22, 2020
Filed:
Sep. 04, 2018
Samsung Display Co., Ltd., Gyeonggi-do, KR;
Seulong Kim, Yongin-si, KR;
Daeyup Shin, Yongin-si, KR;
Samsung Display Co., Ltd., Yongin-si, KR;
Abstract
A condensed cyclic compound that emits high-efficiency delayed fluorescence is provided. The compound may be represented by Formula 1, in which A is a moiety represented by Formula 1-1. In Formula 1-1, Xmay be a carbon or silicon atom linked to Band B, and Xmay be a carbon or silicon atom linked to Band B. When the compound represented by Formula 1 satisfies E<2E<E(wherein Eis the first singlet energy level, Eis the first triplet energy level, and Eis the second triplet energy level of the condensed cyclic compound), an energy transition to a second triplet state may be disfavored during up-conversion of the condensed cyclic compound from a triplet state to a singlet state through interaction with an adjacent molecule in a triplet energy state.