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:
May. 02, 2006
Filed:
Mar. 18, 2003
Shuit-tong Lee, Hong Kong, CN;
Chun-sing Lee, Hong Kong, CN;
Liang-sun Hung, Webster, NY (US);
Baoxiu MI, Hong Kong, CN;
Zhi-qiang Gao, Hong Kong, CN;
Shuit-Tong Lee, Hong Kong, CN;
Chun-Sing Lee, Hong Kong, CN;
Liang-Sun Hung, Webster, NY (US);
Baoxiu Mi, Hong Kong, CN;
Zhi-Qiang Gao, Hong Kong, CN;
City University of Hong Kong, Hong Kong, CN;
Abstract
Compounds of formula [I]wherein each Rto Ris independently selected from the group consisting of halogen atoms, cyano, isocyano, mercapto, amino, carbonyl, carboxy, sulfone, nitro and hydroxy groups, and optionally substituted alkyl, alkenyl, alkynyl, haloalkyl, hydroxyalkyl, aryl, alkoxy, aryloxy, alkylamino, arylamino, alkylarylamino, amide, alkylthio, arylthio, alkoxy carbonyl, siloxy, cyclic hydrocarbon or heterocyclic groups; each x is independently zero, one, two or three; each y is independently zero or one; and each z is independently zero, one, two or three are useful in organic electroluminescence devices. Such compounds are disclosed herein, as well as organic electroluminescence devices using the compounds in the emissive layer.