Electroluminescent device with organic electroluminescent medium
AssigneeEastman Kodak Company
InventorsSteven A. VanSlyke, Ching W. Tang, Michael E. O'Brien, Chin H. Chen
Life of this patent
Estimating the term…
Abstract
An internal junction organic electroluminescent device is disclosed comprising in sequence, an anode, an organic hold injecting and transporting zone, an organic electron injecting and transporting zone, and a cathode. The hole injecting and transporting zone includes a tertiary amine containing at least two tertiary amine moieties and including attached to a tertiary amine nitrogen atom an aromatic moiety containing at least two fused aromatic rings.
Claims22
An internal junction organic electroluminescent device comprising in sequence, an anode, an organic hole injecting and transporting zone comprised of a layer containing a hole transporting aromatic tertiary amine, an organic electron injecting and transporting zone, and a cathode, characterized in that
- said hole transporting aromatic tertiary amine is comprised of at least two tertiary amine moieties and includes attached to a tertiary amine nitrogen atom an aromatic moiety containing at least two fused aromatic rings.
Dependencies are inferred from the claim text.