Photoelectric conversion device, method for driving photoelectric conversion device, radiation imaging device, and method for driving radiation imaging device
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United States of America Patent
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Apr 23, 2013
Grant Date -
Dec 30, 2010
app pub date -
May 31, 2010
filing date -
Jun 26, 2009
priority date (Note) -
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Abstract
Disclosed herein is a photoelectric conversion device having unit pixels arranged in a matrix, each of the unit pixels including: a photoelectric conversion element; a source follower readout transistor configured to receive a signal charge arising from photoelectric conversion by the photoelectric conversion element by a gate, and read out an electrical signal dependent on the signal charge; and a correction circuit configured to reset gate potential of the readout transistor to Vref+Vth prior to signal readout by the readout transistor, if a reference potential given to the gate of the readout transistor is defined as Vref and threshold voltage of the readout transistor is defined as Vth.
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