US 12,445,751 B2
Solid-state imaging device, method for driving solid-state imaging device, and electronic apparatus
Ken Miyauchi, Tokyo (JP); Hideki Owada, Tokyo (JP); Kazuya Mori, Tokyo (JP); and Isao Takayanagi, Tokyo (JP)
Assigned to BRILLNICS SINGAPORE PTE. LTD., Singapore (SG)
Filed by Brillnics Singapore Pte. Ltd., Singapore (SG)
Filed on Jul. 12, 2023, as Appl. No. 18/221,260.
Claims priority of application No. 2022-111651 (JP), filed on Jul. 12, 2022.
Prior Publication US 2024/0022836 A1, Jan. 18, 2024
Int. Cl. H04N 25/77 (2023.01); H04N 25/42 (2023.01); H04N 25/531 (2023.01); H04N 25/532 (2023.01); H04N 25/59 (2023.01); H04N 25/76 (2023.01); H04N 25/771 (2023.01); H04N 25/78 (2023.01)
CPC H04N 25/77 (2023.01) [H04N 25/42 (2023.01)] 28 Claims
OG exemplary drawing
 
1. A solid-state imaging device comprising:
a pixel part having pixels arranged therein, each pixel including a photoelectric conversion reading part, each pixel being configured to operate in a rolling shutter mode and a global shutter mode; and
a reading part for reading pixel signals from the pixel part,
wherein the photoelectric conversion reading part includes:
a photoelectric conversion element for storing therein, in an integration period, charges generated by photoelectric conversion;
a transfer element for transferring, in a transfer period following the integration period, the charges stored in the photoelectric conversion element;
a floating diffusion to which the charges stored in the photoelectric conversion element are transferred through the transfer element; and
a conversion signal reading part for amplifying a voltage signal produced through conversion with a conversion gain and outputting the amplified voltage signal, the conversion signal reading part being configured to operate in a first conversion gain read-out mode and a second conversion gain read-out mode, the conversion signal reading part being configured to, while operating in the first conversion gain read-out mode, produce a readable signal with at least one conversion gain associated with a capacitance of the floating diffusion and a first capacitance, and the conversion signal reading part being configured to, while operating in the second conversion gain read-out mode, produce a readable signal with at least one conversion gain associated with the capacitance of the floating diffusion, the first capacitance, and a second capacitance,
wherein the reading part is configured to switch whether the conversion signal reading part operates in the first conversion gain read-out mode and the second conversion gain read-out mode depending on a scene, and
wherein the photoelectric conversion reading part includes:
a first capacitance element, a capacitance of which serves as the first capacitance;
a second capacitance element, a capacitance of which serves as the second capacitance;
a first storage connection element for selectively connecting the floating diffusion and the first capacitance element; and
a second storage connection element for selectively connecting the floating diffusion and the second capacitance element.