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:
Feb. 13, 2018
Filed:
Jun. 17, 2013
Samsung Display Co., Ltd., Yongin, Gyeonggi-do, KR;
Bum-Woo Park, Yongin, KR;
Yoon-Hyun Kwak, Yongin, KR;
Sun-Young Lee, Yongin, KR;
Jong-Won Choi, Yongin, KR;
Wha-Il Choi, Yongin, KR;
So-Yeon Kim, Yongin, KR;
Ji-Youn Lee, Yongin, KR;
Jin-Young Yun, Yongin, KR;
Samsung Display Co., Ltd., Yongin-si, KR;
Abstract
Heterocyclic compounds, synthetic methods for preparing the same, and organic light-emitting display devices comprising the same are described. The subject heterocyclic compounds may comprise an aromatic ring or a heteroaromatic ring fused with a carbazole, dibenzothiophene, or dibenzofurane derivative, the compounds featuring rigid backbone structures with high glass transition temperatures and high melting points. The subject heterocyclic compounds may exhibit high electrical stability, improved charge transport ability, high heat resistance and improved light-emitting properties when used in organic light-emitting devices. Organic light-emitting display devices prepared according to the present invention exhibit lower driving voltages, increased luminescent efficiencies and longer lifetimes.