US 12,143,735 B2
Solid-state imaging device and imaging device
Takuya Maruyama, Kanagawa (JP); Tsutomu Imoto, Kanagawa (JP); and Atsumi Niwa, Kanagawa (JP)
Assigned to Sony Semiconductor Solutions Corporation, Kanagawa (JP)
Appl. No. 17/928,129
Filed by Sony Semiconductor Solutions Corporation, Kanagawa (JP)
PCT Filed Apr. 26, 2021, PCT No. PCT/JP2021/016652
§ 371(c)(1), (2) Date Nov. 28, 2022,
PCT Pub. No. WO2021/261070, PCT Pub. Date Dec. 30, 2021.
Claims priority of application No. 2020-110957 (JP), filed on Jun. 26, 2020.
Prior Publication US 2023/0209218 A1, Jun. 29, 2023
Int. Cl. H04N 25/47 (2023.01); H01L 27/146 (2006.01); H04N 25/42 (2023.01); H04N 25/46 (2023.01); H04N 25/57 (2023.01); H04N 25/703 (2023.01); H04N 25/707 (2023.01); H04N 25/76 (2023.01); H04N 25/77 (2023.01); H04N 25/78 (2023.01)
CPC H04N 25/47 (2023.01) [H04N 25/42 (2023.01); H04N 25/77 (2023.01); H04N 25/78 (2023.01); H01L 27/14634 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A solid-state imaging device comprising:
a plurality of detection pixels that each output a luminance change of incident light;
a detection circuit that outputs an event signal based on the luminance change output from each of the detection pixels; and
a first common line connecting the plurality of detection pixels to each other,
wherein each of the detection pixels includes:
a photoelectric conversion element;
a logarithmic conversion circuit that converts a photocurrent flowing out of the photoelectric conversion element into a voltage signal corresponding to a logarithmic value of the photocurrent;
a first circuit that outputs a luminance change of incident light incident on the photoelectric conversion element based on the voltage signal output from the logarithmic conversion circuit;
a first transistor connected between the photoelectric conversion element and the logarithmic conversion circuit;
a second transistor connected between the photoelectric conversion element and the first common line;
a second common line connecting the plurality of detection pixels to each other;
a plurality of third transistors connected between the photoelectric conversion element in each of the detection pixels and the second common line; and
a readout circuit that is connected to the second common line and generates a pixel signal having a voltage value corresponding to charge accumulated in the photoelectric conversion element, wherein
the detection circuit includes a second circuit that outputs the event signal based on the luminance change output from each of the detection pixels.