Kinney & Lange, P.A.
Fingerprint detection circuit, detection method for fingerprint detection circuit, and fingerprint sensor
A fingerprint detection circuit is provided, which includes a photosensitive unit, a voltage following transistor, a first switching transistor and a second switching transistor. A gate electrode of the first switching transistor is connected to a first resetting control end, a first electrode thereof is connected to a node, and a second electrode thereof is connected to a second electrode of the voltage following transistor. A gate electrode of the second switching transistor is connected to a scanning signal end, a first electrode thereof is connected to the second electrode of the voltage following transistor, and a second electrode thereof is connected to a first reference voltage end. A gate electrode of the voltage following transistor is connected to the node. A first electrode of the photosensitive unit is connected to a third reference voltage end, and a second electrode thereof is connected to the node.
BOE TECHNOLOGY GROUP CO., LTD.
G H H G G
G06F H01L H01L G06V G06F
inventional inventional inventional inventional inventional
Xiaoliang Xueyou Wei Chihjen Pengpeng Haisheng Yanling
Ding Cao Liu Cheng Wang Wang Han