Calfee, Halter & Griswold LLP
Fingerprint identification module, drive control circuit, display substrate and display device
The present disclosure relates to a fingerprint identification module, including: a plurality of sensing units, wherein each sensing unit receives modulation signal when turned on, the modulation signal covers at least one first time interval and at least one second time interval, and the voltages during the first and second time intervals are respectively first and second voltages; a collecting unit for collecting output signals of the sensing units in the same column in all the first time intervals as a first signal and those in all the second time intervals as a second signal; and a calculating unit for determining the difference between the first and second signals to obtain a third signal and obtaining the fingerprint information sensed on the basis of the third signal. Through the above solution, it is possible to eliminate the influence of the leakage current in the sensing unit, thereby accurately identifying fingerprints.
BOE TECHNOLOGY GROUP CO., LTD. BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
G G
G06V G06V
inventional inventional
Xiaoliang Hongjuan Shengji Hailin Weijie Wei Yingming Xiaochuan Xue Pengpeng Haisheng Lei Changfeng
Ding Liu Yang Xue Zhao Liu Liu Chen Dong Wang Wang Wang Li