Brooks Kushman P.C.
Fingerprint photocurrent detection unit, fingerprint identifier, driving method and display device
The present disclosure provides a fingerprint photocurrent detection unit, a fingerprint identifier, a driving method and a display device. The fingerprint photocurrent detection unit includes: a conversion circuit coupled to a fingerprint photocurrent reading line and configured to convert a fingerprint photocurrent acquired by the fingerprint photocurrent reading line into a square wave signal; and a detection circuit coupled to the conversion circuit and configured to detect the square wave signal and acquire information about a fingerprint photocurrent in accordance with a frequency of the square wave signal.
BOE TECHNOLOGY GROUP CO., LTD.
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H01L H01L G06K H01L G06V
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Yingming Jing Chunwei Xue Haisheng Xueyou Xiaoliang Pengpeng Yanling Wei
Liu Lv Wu Dong Wang Cao Ding Wang Han Liu