Organic electroluminescent device compensated pixel driver circuit
AssigneeSeiko Epson Corporation
InventorSimon Tam
Life of this patent
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Abstract
A compensated pixel driver circuit for an organic electroluminescent device, wherein the circuit comprises a unity gain buffer which is preferably implemented as an operational amplifier. The circuit provides a unity gain sample and hold function, thereby compensating the current supply to the electroluminescent element by providing a self adjusting load.
Claims10
A compensated pixel driver circuit for an organic electroluminescent device, wherein the circuit comprises a unity gain buffer.
A compensated pixel driver circuit as claimed in any preceding claim, wherein the buffer comprises a differential pair circuit and a driver circuit.
A compensated pixel driver circuit as claimed in any preceding claim, wherein the circuit is implemented with polysilicon thin film transistors.
A method of compensating the current supply to a organic electroluminescent pixel comprising the step of using an buffer to provide a self adjusting load.
Dependencies are inferred from the claim text.