US 12,108,165 B2
Imaging device including pixels each having a light-receiving device and a light-emitting device
Daisuke Kubota, Kanagawa (JP); Ryo Hatsumi, Kanagawa (JP); and Taisuke Kamada, Saitama (JP)
Assigned to Semiconductor Energy Laboratory Co., Ltd., Atsugi (JP)
Appl. No. 17/639,683
Filed by SEMICONDUCTOR ENERGY LABORATORY CO., LTD., Atsugi (JP)
PCT Filed Sep. 1, 2020, PCT No. PCT/IB2020/058112
§ 371(c)(1), (2) Date Mar. 2, 2022,
PCT Pub. No. WO2021/048683, PCT Pub. Date Mar. 18, 2021.
Claims priority of application No. 2019-167577 (JP), filed on Sep. 13, 2019.
Prior Publication US 2022/0294981 A1, Sep. 15, 2022
Int. Cl. H04N 23/80 (2023.01); G06T 5/50 (2006.01); G06T 5/80 (2024.01); H04N 23/10 (2023.01); H04N 23/56 (2023.01); H04N 25/10 (2023.01); H10K 65/00 (2023.01)
CPC H04N 23/80 (2023.01) [G06T 5/50 (2013.01); G06T 5/80 (2024.01); H04N 23/125 (2023.01); H04N 23/56 (2023.01); H04N 25/10 (2023.01); H10K 65/00 (2023.02); G06T 2207/20212 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An imaging device comprising:
an imaging unit;
a memory; and
an arithmetic circuit,
wherein the imaging unit comprises a light-receiving device, a first light-emitting device, and a second light-emitting device,
wherein the first light-emitting device is configured to emit light in a wavelength range that is different from a wavelength range of light emitted by the second light-emitting device,
wherein the imaging unit is configured to make the first light-emitting device emit light and acquire first image data,
wherein the imaging unit is configured to make the second light-emitting device emit light and acquire second image data,
wherein the memory is configured to retain first reference data and second reference data,
wherein the arithmetic circuit is configured to correct the first image data with the use of the first reference data retained in the memory and calculate first correction image data,
wherein the arithmetic circuit is configured to correct the second image data with the use of the second reference data retained in the memory and calculate second correction image data,
wherein the arithmetic circuit is configured to combine the first correction image data and the second correction image data to generate synthesized image data,
wherein the light-receiving device comprises a first pixel electrode,
wherein the first light-emitting device comprises a second pixel electrode on the same plane as the first pixel electrode, and
wherein each of the first reference data and the second reference data comprises any one of black reference data and white reference data.