Solid-state image pickup device, defective pixel conversion method, defect correction method, and electronic information apparatus
AssigneeSharp Kabushiki Kaisha
InventorEiji Koyama
Life of this patent
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Abstract
A solid-state image pickup device is provided which comprises a plurality of pixels arranged two-dimensionally. Each pixel comprises a reset section for resetting an electric charge accumulation voltage generated by photoelectric conversion, and an amplification section for outputting a signal voltage corresponding to the electronic charge accumulation voltage, a voltage switch section for switching a voltage to be supplied to the reset section between a reset voltage and a second reference voltage, the second reference voltage being lower than the reset voltage; and a voltage fix section for fixing the electronic charge accumulation voltage to a predetermined value.
Claims19
A solid-state image pickup device, comprising:
- a plurality of pixels arranged two-dimensionally, wherein each pixel comprising
- a reset section for resetting an electric charge accumulation voltage generated by photoelectric conversion, and
- an amplification section for outputting a signal voltage corresponding to the electronic charge accumulation voltage;
- a voltage switch section for switching a voltage to be supplied to the reset section between a reset voltage and a second reference voltage, the second reference voltage being lower than the reset voltage;
- and
- a voltage fix section for fixing the electronic charge accumulation voltage to a predetermined value.
A solid-state image pickup device, comprising
- a plurality of pixels arranged two-dimensionally, wherein each pixel comprising:
- a reset transistor comprising a first drive terminal, a second drive terminal, and a control terminal, wherein an electric charge accumulation voltage generated by photoelectric conversion is applied to the first drive terminal, a reset control voltage is applied to the control terminal, and a reset voltage is applied to the second drive terminal, so that the electric charge accumulation voltage is reset;
- and
- an amplification transistor comprising a first drive terminal, a second drive terminal, and a control terminal, wherein the electronic charge accumulation voltage is applied to the control terminal and a first reference voltage is applied to the first drive terminal, so that a signal voltage corresponding to the electronic charge accumulation voltage is output from the second two drive terminals, and
- a voltage switch section for switching a voltage supplied to the second terminal of the reset transistor between the reset voltage and a second reference voltage, the second reference voltage being lower than the reset voltage, so that a voltage greater than or equal to the voltage rating of a transistor can be applied the first drive terminal of the amplification transistor to cause a short circuit between the second drive terminal and the control terminal of the amplification transistor.
Dependencies are inferred from the claim text.