Title:
An organic EL device, a light using it, and a display device
Document Type and Number:
Japanese Patent JP6259812
Kind Code:
B2
Abstract:
This organic EL element is provided with a light emitting layer between a pair of electrodes. The light emitting layer contains a host material and a fluorescent dopant material, and the content of the fluorescent dopant material in the light emitting layer is 49% or less of the total mass of the light emitting layer. The dopant material has a difference between the S1 energy and the T1 energy of 0.24 eV or less, and is composed of a cyanopyridine compound represented by general formula (I). In general formula (I), at least one of R1-R5 represents a cyano group, and at least one of R1-R5 represents a substituent that is not a hydrogen atom nor a cyano group.
Inventors:
Ken Saito
Chiaki Kashiwakura
Chiaki Kashiwakura
Application Number:
JP2015503007A
Publication Date:
January 10, 2018
Filing Date:
February 27, 2014
Export Citation:
Assignee:
Kaneka Corporation
International Classes:
H01L51/50
Domestic Patent References:
| JP2009094486A | ||||
| JP2008063278A | ||||
| JP7082552A | ||||
| JP2010114425A | ||||
| JP2006024830A |
Foreign References:
| KR1020120092909A |
Attorney, Agent or Firm:
Masato Shintaku
Yoshimoto Riki
Yoshimoto Riki