Title:
有機EL素子
Document Type and Number:
Japanese Patent JP4109057
Kind Code:
B2
Abstract:
To constitute an organic EL element with the use of an organic phosphor for emitting light of a given luminous color at high brightness and for easily obtaining a composition for application through solubilization or dispersion in forming a luminous layer.
The organic EL element has the luminous layer using an ellagic acid series compound expressed in a formula (1) as an organic phosphor laminated together with another layer as needed by pinching them with a pair of electrodes. Provided, in the formula (1), R denotes an alkyl group, alkyl ether group, alicyclic group, heterocyclic group, or aromatic ring group, and the two Rs may be the same or different.
COPYRIGHT: (C)2004,JPO
Inventors:
Kiyoshi Ito
Application Number:
JP2002258483A
Publication Date:
June 25, 2008
Filing Date:
September 04, 2002
Export Citation:
Assignee:
Dai Nippon Printing Co.,Ltd.
International Classes:
H01L51/50; C07D493/22; C09B57/02; C09K11/06; H05B33/14
Domestic Patent References:
| JP9302337A |
Attorney, Agent or Firm:
Satoshi Kanayama