IMAGING DEVICE AND ELECTRONIC APPARATUS COMPRISING IMAGING DEVICE

• Main Authors: OOSAKO Youhei, MOUE Takashi, YAMASHITA Tomonori, HASEGAWA Masako
• Format: Patent
• Language: English; French; German
• Published: 31.07.2024
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION

[Problem] An imaging device that can increase the dynamic range of pixel signals is provided.[Means of Solution] An imaging device according to an embodiment of the present disclosure includes: a plurality of pixels that are exposed during a same period; and an AD converter that digitizes an analog pixel signal output from each of the plurality of pixels. Further, each of the plurality of pixels includes a photoelectric conversion circuit that photoelectrically converts incident light, a first source follower circuit that amplifies an output signal of the photoelectric conversion circuit, a signal holding circuit that holds an output signal of the first source follower circuit, and a second source follower circuit that amplifies a signal read out from the signal holding circuit and outputs the signal as the pixel signal. Furthermore, a ramp signal including a slope portion in which a voltage level changes like a ramp is supplied to the signal holding circuit.