Patent ID: 11943555
Assignee: CHENGDU IMAGE DESIGN TECHNOLOGY CO. LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 3:
4. The pixel processing circuit according to claim 1, wherein each of the pixel units comprises a photodiode, a transfer transistor, a reset transistor, a source-follower transistor, and a row selection transistor;
a first end of the photodiode is grounded, and a second end of the photodiode is connected to a drain of the transfer transistor; a gate of the transfer transistor is configured for accessing a TX signal, and a source of the transfer transistor is connected to a drain of the reset transistor and a gate of the source-follower transistor; a source of the reset transistor is configured for accessing a power supply signal, and a gate of the reset transistor is configured for accessing an RX signal; a source of the source-follower transistor is configured for accessing the power supply signal, a drain of the source-follower transistor is connected to a source of the row selection transistor, a gate of the row selection transistor is configured for accessing an SEL signal, and a drain of the row selection transistor is connected to an output bus of the pixel unit;
wherein the drain of the reset transistor is connected to the source of the row selection transistor to obtain a row selection control signal for transferring a pixel signal through the row selection transistor.