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 7351481 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 01, 2008

Filed:

Oct. 06, 2004
Applicants:

Seok-jong Lee, Suwon-si, KR;

Young-kook Kim, Suwon-si, KR;

Seok-hwan Hwang, Suwon-si, KR;

Seung-gak Yang, Suwon-si, KR;

Hee-yeon Kim, Suwon-si, KR;

Young-rag DO, Seoul, KR;

Joo-han Song, Suwon-si, KR;

Inventors:

Seok-Jong Lee, Suwon-si, KR;

Young-Kook Kim, Suwon-si, KR;

Seok-Hwan Hwang, Suwon-si, KR;

Seung-Gak Yang, Suwon-si, KR;

Hee-Yeon Kim, Suwon-si, KR;

Young-Rag Do, Seoul, KR;

Joo-Han Song, Suwon-si, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 51/54 (2006.01); C09K 11/06 (2006.01); C07D 513/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention is related to an imidazole ring-containing compound and an organic electroluminescence (EL) display device using the same. In particular, the imidazole ring-containing compound may be used alone or in combination with a dopant as a material for organic films such as an electroluminescent layer. The organic EL display device using an organic film made of the imidazole ring-containing compound has improved characteristics such as luminance, efficiency, driving voltage, and color purity.


Find Patent Forward Citations

Lee, Seok-Jong. (2008). Imidazole ring-containing compound and organic electroluminescence display device (U.S. Patent No. 7351481). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7351481

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