Back to results
US 2014/0191227 A1Published application
Organic electroluminescence element
AssigneeKonica Minolta, Inc.
InventorsSatoru Inoue, Hiroto Ito
Life of this patent
Estimating the term…
Abstract
An organic electroluminescent element includes a light-emitting layer between an anode and a cathode. The light-emitting layer contains a phosphorescent light-emitting organic metal complex and at least one host compound. The difference in relative dielectric constant between the host compound and the phosphorescent light-emitting organic metal complex is 0 to −0.5, and the difference in dipole moment between the host compound and the phosphorescent light-emitting organic metal complex is 0 to −5.5 debye.
Claims15
An organic electroluminescent element comprising a light-emitting layer between an anode and a cathode, wherein
- the light-emitting layer comprises a phosphorescent light-emitting organic metal complex and at least one host compound;
- and
- the host compound and the phosphorescent light-emitting organic metal complex have a difference of 0 to −0.5 in relative dielectric constant and have a difference of 0 to −5.5 debye in dipole moment.
Dependencies are inferred from the claim text.