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:
Apr. 05, 2016
Filed:
Jun. 03, 2013
Hitachi, Ltd., Tokyo, JP;
Hirotaka Sakuma, Tokyo, JP;
Sukekazu Aratani, Tokyo, JP;
HITACHI, LTD., Tokyo, JP;
Abstract
An organic light-emitting device includes an upper electrode, a lower electrode, and a light-emitting layer disposed between the upper and lower electrodes, wherein the light-emitting layer includes a host and a first dopant. The first dopant includes a pyridyltriazole derivative as an auxiliary ligand, the auxiliary ligand of the first dopant contains a functional group R1 or a functional group R2, and the first dopant is displaced toward a surface of the light emitting layer by the action of at least one of the functional groups R1 and R2, wherein the surface is on a side where the upper electrode is present, and also directed to a coating liquid for use in forming the light-emitting layer with an organic material. An organic light-emitting device is produced with the coating liquid, a light source apparatus includes the organic light-emitting device, and methods for manufacture thereof are disclosed.