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.

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：US11423688B2

公开(公告)日：2022-08-23

申请号：US17133658

申请日：2020-12-24

Applicant: NOVATEK Microelectronics Corp.

Inventor： Yuan-Heng Lu ,  Tsung-Chan Lee

IPC: G06V40/13 ,  G02F1/1333

Abstract: A fingerprint sensing module is used for a liquid crystal display (LCD) panel having a sensing area. The fingerprint sensing module includes a light source and a shielding frame. The light source is configured to provide light emission for fingerprint sensing performed on the sensing area, wherein the sensing area is at a first side of the light source. The shielding frame is disposed on a light emission path from the light source toward the first side.

公开(公告)号：US20210216742A1

公开(公告)日：2021-07-15

申请号：US17133658

申请日：2020-12-24

Applicant: NOVATEK Microelectronics Corp.

Inventor： Yuan-Heng Lu ,  Tsung-Chan Lee

IPC: G06K9/00 ,  G02F1/1333

Abstract: A fingerprint sensing module is used for a liquid crystal display (LCD) panel having a sensing area. The fingerprint sensing module includes a light source and a shielding frame. The light source is configured to provide light emission for fingerprint sensing performed on the sensing area, wherein the sensing area is at a first side of the light source. The shielding frame is disposed on a light emission path from the light source toward the first side.