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1. (WO2018218999) FINGERPRINT RECOGNITION CIRCUIT AND DRIVING METHOD THEREFOR, AND DISPLAY PANEL

Pub. No.:    WO/2018/218999    International Application No.:    PCT/CN2018/077120
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Sun Feb 25 00:59:59 CET 2018
IPC: G06K 9/00
Applicants: BOE TECHNOLOGY GROUP CO., LTD.
京东方科技集团股份有限公司
Inventors: LI, Changfeng
李昌峰
WANG, Haisheng
王海生
LIU, Yingming
刘英明
DING, Xiaoliang
丁小梁
XU, Rui
许睿
WANG, Pengpeng
王鹏鹏
LIU, Wei
刘伟
GU, Pinchao
顾品超
QIN, Yunke
秦云科
GUO, Yuzhen
郭玉珍
LU, Pengcheng
卢鹏程
Title: FINGERPRINT RECOGNITION CIRCUIT AND DRIVING METHOD THEREFOR, AND DISPLAY PANEL
Abstract:
The present disclosure provides a fingerprint recognition circuit, belonging to the field of display technologies, and being able to recognize human fingerprint information. A fingerprint recognition circuit of the present disclosure comprises a reset sub-circuit, a fingerprint sensing sub-circuit, a signal acquisition sub-circuit and a drive sub-circuit. The reset sub-circuit is connected to a read node, a reset port and a first port, and is used for resetting the potential of the read node. The fingerprint sensing sub-circuit is connected to the read node, and is used for acquiring fingerprint information, converting the fingerprint information into a detection signal and outputting same to the read node. The signal acquisition sub-circuit is connected to the read node, the drive sub-circuit and a power source port, and is used for outputting a signal of the read node to the drive sub-circuit. The drive sub-circuit is connected to a read port, the signal acquisition sub-circuit, an output port and a second port, and is used for outputting, by means of the read port, in a fingerprint recognition stage, a signal outputted by the signal acquisition sub-circuit, and for outputting, in a display stage, a signal of the read port to the output port.