公开(公告)号：US20220335743A1

公开(公告)日：2022-10-20

申请号：US17720115

申请日：2022-04-13

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Wei-Lun Shih ,  Yuan-Heng Lu ,  Ting-Hsuan Hung ,  Jia-Lin Chen

IPC: G06V40/13 ,  G06F3/041 ,  G06F3/044

Abstract: Provided are a fingerprint identification method for a panel, an electronic device and a control circuit. The method includes setting voltages on the data lines and sensing lines that may affect a fingerprint identification result to a predetermined DC voltage during a predetermined time period before a start of a fingerprint identification period that follows a display driving period. As such, when a display driving operation and a fingerprint identification operation are performed in a time-division manner, the influence of the display driving operation on the fingerprint identification operation can be eliminated, that is, the influence on the fingerprint identification result from the voltage on the data line and sensing line can be eliminated.

公开(公告)号：US11798309B2

公开(公告)日：2023-10-24

申请号：US17720115

申请日：2022-04-13

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Wei-Lun Shih ,  Yuan-Heng Lu ,  Ting-Hsuan Hung ,  Jia-Lin Chen

IPC: G06V40/13 ,  G06F3/041 ,  G06F3/044

CPC classification number: G06V40/1306 ,  G06F3/0412 ,  G06F3/0446 ,  G06F3/04164 ,  G06F3/04166

Abstract: Provided are a fingerprint identification method for a panel, an electronic device and a control circuit. The method includes setting voltages on the data lines and sensing lines that may affect a fingerprint identification result to a predetermined DC voltage during a predetermined time period before a start of a fingerprint identification period that follows a display driving period. As such, when a display driving operation and a fingerprint identification operation are performed in a time-division manner, the influence of the display driving operation on the fingerprint identification operation can be eliminated, that is, the influence on the fingerprint identification result from the voltage on the data line and sensing line can be eliminated.