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:
Jan. 04, 2005
Filed:
Jan. 20, 2003
Wen-yao Huang, Ming-Jian Hsiang, TW;
Min-jong Chang, Hsinchu, TW;
Wen-chin Huang, Taipei, TW;
E-Ray Optoelectronics Technology Co., Ltd., Taipei, TW;
Abstract
An organic electroluminescent (EL) device () in accordance with the present invention comprises, in sequence, a glass substrate (), an anode layer (), a hole-injecting layer (), a hole-transporting layer (), an luminescent layer (), an electron-transporting layer (), an electron-injecting layer () and a cathode layer (). The luminescent layer () is doped with a guest fluorescent doping material, and the guest fluorescent doping material for the luminescent layer () comprises a compound represented by Formula I:wherein R, R, R, R, R, and Reach independently represents a linear or branched aliphatic group having from 1 to 10 carbon atoms or an aromatic group having from 5 to 20 carbon atoms.