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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.:

US 7737627 B1

PDFFull Text
Date of Patent:
Jun. 15, 2010

Filed:

Apr. 04, 2005

Fluorene-based compound and organic electroluminescent display device using the same

Applicants:

Seok-hwan Hwang, Suwon-si, KR;

Seok-jong Lee, Suwon-si, KR;

Young-kook Kim, Suwon-si, KR;

Seung-gak Yang, Suwon-si, KR;

Hee-yeon Kim, Suwon-si, KR;

Inventors:

Seok-Hwan Hwang, Suwon-si, KR;

Seok-Jong Lee, Suwon-si, KR;

Young-Kook Kim, Suwon-si, KR;

Seung-Gak Yang, Suwon-si, KR;

Hee-Yeon Kim, Suwon-si, KR;

Assignee:

Samsung Mobile Display Co., Ltd., Yongin, KR;

Attorney:

H.C. Park & Associates, PLC

Primary Examiner:

D Lawrence Tarazano

Assistant Examiner:

Brett A Crouse

Int. Cl.
CPC ...
H01L 51/54 (2006.01); H05B 33/14 (2006.01); C09K 11/06 (2006.01); C07D 209/82 (2006.01); C07C 211/00 (2006.01); C07C 15/27 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention relates to an organic electroluminescent (OEL) compound that comprises at least one fluorene derivative and at least one carbazole derivative. The compound has good electrical properties, light emitting properties and charge transport ability, and thus is suitable as a host material suitable for fluorescent and phosphorescent dopants of all colors including red, green, blue, white, etc., and as a charge transport material. An OEL display device that uses an organic layer that includes the OEL compound has a high efficiency, a low voltage, a high luminance, and a long lifespan because it has superior current density.

Find Patent Forward Citations

Hwang, Seok-Hwan. (2010). Fluorene-based compound and organic electroluminescent display device using the same (U.S. Patent No. 7737627). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7737627

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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