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:
Aug. 25, 2009
Filed:
Jan. 26, 2005
Lixiang Wang, Changchun, CN;
Guoli Tu, Changchun, CN;
Jianxin Cao, Changchun, CN;
Jun Liu, Changchun, CN;
Dongge MA, Changchun, CN;
Xia Bin Jing, Changchun, CN;
Fosong Wang, Changchun, CN;
Lixiang Wang, Changchun, CN;
Guoli Tu, Changchun, CN;
Jianxin Cao, Changchun, CN;
Jun Liu, Changchun, CN;
Dongge Ma, Changchun, CN;
Xia Bin Jing, Changchun, CN;
Fosong Wang, Changchun, CN;
Abstract
This invention relates to a white electroluminescent polymeric material and preparation thereof. Based on the physical idea that white light emission can be achieved by regulating the relative luminous intensities of blue- and orange-light emitting units located in a single polymer molecule, the present invention provides three types (main chain type, pendant chain type, and terminal group type) of high efficiency and stable white electroluminescent polymeric material systems.