Organic magnetoelectroluminescence for transduction between magnetic and optical information
AssigneeUniversity of Iowa Research Foundation
InventorsMarkus Wohlgenannt, Michael Flatte, Andrew Kent, Fujian Wang, Nicholas Harmon, Ferran Macia Bros
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Abstract
An optoelectronic device which can read magnetically stored information, and convert it into optical light signals using organic or “plastic” semiconductors is described. Such a device may use OLEDs, and may be termed an “organic magneto-optic transducer” (OMOT). An OMOT device can read magnetically stored information, and convert it into optical light signals. The OMOT may provide benefits such as non-volatile storage, flexible films, reduced cost, and operation at room temperature.
Claims6
A display device comprising a plurality of pixels, each pixel comprising:
- an organic light emitting diode;
- an organic field-effect transistor controlling current flow through the organic light emitting diode;
- a ferromagnetic film arranged adjacent to the organic field-effect transistor so that fringe magnetic fields of magnetic domains in the ferromagnetic film penetrate the organic field-effect transistor and cause the current flow from the organic field-effect transistor to vary based on a strength of the fringe magnetic fields, whereby an optical signal from the organic light emitting diode is varied.
Dependencies are inferred from the claim text.