Title:
発光素子
Document Type and Number:
Japanese Patent JP6504743
Kind Code:
B2
Abstract:
Provided is a light emitting element which has a good balance between high luminous efficiency and durability. A light emitting element of the present invention comprises, between a positive electrode and a negative electrode, at least a hole transport layer and a light emitting layer, and emits light by means of electrical energy. This light emitting element is characterized in that the hole transport layer contains a specific compound that has a carbazole skeleton and the light emitting layer contains a compound that has an aromatic heterocyclic group containing an electron-accepting nitrogen.
Inventors:
Kazuma Nagao
Taichi Ichihashi
Go Tominaga
Taichi Ichihashi
Go Tominaga
Application Number:
JP2013511444A
Publication Date:
April 24, 2019
Filing Date:
March 04, 2013
Export Citation:
Assignee:
TORAY INDUSTRIES,INC.
International Classes:
H01L51/50; C07D209/86; C07D235/18; C07D333/76; C07D401/10; C07D403/04; C07D487/04; C07D487/14; C07D491/048; C07D519/00; C09K11/06
Foreign References:
| WO2011048822A1 | ||||
| WO2008056746A1 | ||||
| WO2011048821A1 | ||||
| WO2011024451A1 | ||||
| WO2012001986A1 |
Attorney, Agent or Firm:
Sakai International Patent Office