Detection device
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United States of America Patent
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Jan 17, 2023
Grant Date -
N/A
app pub date -
Oct 8, 2021
filing date -
Oct 12, 2020
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A detection device includes: detection elements; scan lines coupled to the detection elements and configured to supply drive signals to the detection elements; output signal lines coupled to the detection elements, detection signals from the detection elements being output to the output signal lines; a drive circuit configured to supply the drive signals to the detection elements; and a detection circuit configured to be supplied with the detection signals through the output signal lines. Each detection element includes a photoelectric conversion element, a source follower transistor configured to output a signal corresponding to an electrical charge of the photoelectric conversion element, and a read transistor configured to read the output signal of the source follower transistor and output the detection signal. During a reset period, an initial voltage obtained by superimposing a reference voltage on a threshold voltage of the source follower transistor is applied to the photoelectric conversion element.
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