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. 13, 2014
Filed:
Sep. 07, 2010
Tomio Ono, Yokohama, JP;
Shintaro Enomoto, Yokohama, JP;
Isao Takasu, Komae, JP;
Yukitami Mizuno, Tokyo, JP;
Shuichi Uchikoga, Tokyo, JP;
Tomio Ono, Yokohama, JP;
Shintaro Enomoto, Yokohama, JP;
Isao Takasu, Komae, JP;
Yukitami Mizuno, Tokyo, JP;
Shuichi Uchikoga, Tokyo, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
According to one embodiment, an organic light-emitting diode includes an anode and a cathode arranged apart from each other, an emission layer, arranged between the anode and cathode, containing a host material of polyvinyl(2,7-difluorocarbazole), a blue-emitting phosphorescent material, and an electron transport material, and a hole transport layer of polyvinylcarbazole arranged adjacent to the emission layer on an anode side.