Unit pixel apparatus and operation method thereof
AssigneeSK hynix Inc.
InventorWoong-Hee LEE
Life of this patent
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Abstract
A unit pixel apparatus may include a plurality of unit pixels including a reset transistor, each unit pixel being suitable for outputting a pixel signal corresponding to incident light; a reset transistor gate voltage transmission unit suitable for transmitting a plurality of reset transistor gate voltages; and a first voltage switching unit suitable for transmitting a first supply voltage among the plurality of reset transistor gate voltages to a gate terminal of the reset transistor in each of the unit pixels during a period from an exposure start time to just before a readout time.
Claims20
A unit pixel apparatus comprising:
- a plurality of unit pixels including a reset transistor, each unit pixel being suitable for outputting a pixel signal corresponding to incident light;
- a reset transistor gate voltage transmission unit suitable for transmitting a plurality of reset transistor gate voltages;
- and
- a first voltage switching unit suitable for transmitting a first supply voltage among the plurality of reset transistor gate voltages to a gate terminal of the reset transistor in each of the unit pixels during a period from an exposure start time to just before a readout time.
An operation method of a unit pixel apparatus, comprising:
- applying a first supply voltage from a reset transistor gate voltage transmission unit to a gate terminal of a reset transistor in each of unit pixels according to a control signal, during a period from an exposure start time to just before a readout time;
- and
- applying a second supply voltage from the reset transistor gate voltage transmission unit to the gate terminal of the reset transistor in each of the unit pixels according to an inverted control signal, during reset periods other than the period from the exposure start time to just before the readout time.
Dependencies are inferred from the claim text.