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:
Dec. 21, 2010
Filed:
May. 11, 2005
Yoshiaki Nagara, Aichi, JP;
Ichiro Yamamoto, Aichi, JP;
Kenji Mori, Aichi, JP;
Takanori Murasaki, Aichi, JP;
Yoshiaki Nagara, Aichi, JP;
Ichiro Yamamoto, Aichi, JP;
Kenji Mori, Aichi, JP;
Takanori Murasaki, Aichi, JP;
Kabushiki Kaisha Toyota Jidoshokki, Aichi-ken, JP;
Abstract
The present organic EL devices have at least one luminescent layer and a cathode sequentially provided on their anode, which luminescent layer contains an electron-transporting material, a hole-transporting material, and a luminescent dopant. Preferably, an electron-transporting layer is further provided between the luminescent layer and the cathode. According to the present invention, organic EL devices can be provided giving improved whiteness, colour reproducibility, luminescent efficiency, and lifetime compared to conventional ones.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile