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:
Oct. 16, 2007
Filed:
Aug. 11, 2006
Feng-wen Yen, Hsinchu, TW;
Chao-yu Chiu, Hsinchu, TW;
I-feng Lin, Taoyuan, TW;
Chin-ming Teng, Miaoli County, TW;
Pei-chi Yen, Hsinchu, TW;
Feng-Wen Yen, Hsinchu, TW;
Chao-Yu Chiu, Hsinchu, TW;
I-Feng Lin, Taoyuan, TW;
Chin-Ming Teng, Miaoli County, TW;
Pei-Chi Yen, Hsinchu, TW;
Luminescence Technology Corp., Hsinchu, TW;
Abstract
The present invention discloses a dipyridine-based compound which can be used as electron-transporting and/or hole blocking material or phosphorous host in organic electroluminescence devices is disclosed. The mentioned dipyridine-based compound is represented by the following formula: wherein Rand Rare identical or different, and Rand Rare independently selected from the group consisting of: hydrogen atom, aryl moiety, hetero cycle, multiple fused ring, multiple fused ring with hetero atom(s); A is selected from the following group: wherein Rand Rare identical or different, Rand Rare identical or different, Rand Rare identical or different, R, R, R, Rare independently selected from the group consisting of: alkyl moiety and aryl moiety, and R, Rare independently selected from the group consisting of: alkyl moiety, aryl moiety and arylamine moiety.