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:
Mar. 10, 2015
Filed:
Apr. 04, 2012
Seok-hwan Hwang, Yongin-si, KR;
Young-kook Kim, Yongin-si, KR;
Yoon-hyun Kwak, Yongin-si, KR;
Jong-hyuk Lee, Yongin-si, KR;
Kwan-hee Lee, Yongin-si, KR;
Min-seung Chun, Yongin-si, KR;
Seok-Hwan Hwang, Yongin-si, KR;
Young-Kook Kim, Yongin-si, KR;
Yoon-Hyun Kwak, Yongin-si, KR;
Jong-Hyuk Lee, Yongin-si, KR;
Kwan-Hee Lee, Yongin-si, KR;
Min-Seung Chun, Yongin-si, KR;
Samsung Display Co., Ltd., Giheung-Gu, Yongin, Gyeonggi-Do, KR;
Abstract
Provided are an organic light emitting device including: a substrate; a first electrode; a second electrode; and an organic layer interposed between the first electrode and the second electrode and including an emission layer, wherein one of the first electrode and the second electrode is a reflective electrode and the other is a semitransparent or transparent electrode, and wherein the organic layer includes a layer having at least one of the compounds having at least one carbazole group, and a flat panel display device including the organic light emitting device. The organic light emitting device has low driving voltage, excellent current density, high brightness, excellent color purity, high efficiency, and long lifetime.