Low threshold voltage instability amorphous silicon field...

Details Low threshold voltage instability amorphous silicon field... Low threshold voltage instability amorphous silicon field...

2005-03-29

2005-03-29

Whitehead, Jr., Carl (Department: 2813)

Active solid-state devices (e.g., transistors, solid-state diode

Non-single crystal, or recrystallized, semiconductor...

Amorphous semiconductor material

Reexamination Certificate

active

06872974

ABSTRACT:
A circuit for providing a current to an organic light emitting diode comprising: (a) an amorphous silicon field effect transistor having a gate electrode and a drain electrode through which the current is provided to the organic light emitting diode; and (b) a controller for controlling a bias between the gate electrode and the drain electrode to maintain a threshold voltage shift of less than about 1V. The organic light emitting diode is preferably a component in an active matrix.

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