公开(公告)号：US11270095B2

公开(公告)日：2022-03-08

申请号：US16921921

申请日：2020-07-06

Applicant: Novatek Microelectronics Corp.

Inventor： Wei-Lun Shih ,  Tzu-Wen Hsieh ,  Huan-Teng Cheng ,  Huang-Chin Tang ,  Yueh-Teng Mai ,  Shi-Hao Huang ,  Jung-Chung Lee

IPC: G06K9/00 ,  G09G5/10 ,  G06F3/041 ,  G09G3/20

Abstract: An electronic circuit for driving a panel including touch sensors and fingerprint sensors is provided. The electronic circuit includes a touch sensing circuit, a fingerprint sensing circuit and a display driving circuit. The touch sensing circuit senses a touch of a finger and determines a first area corresponding to the touch on the panel. The fingerprint sensing circuit senses a fingerprint image of the finger corresponding to the first area of the panel. The display driving circuit drives pixels over the panel with respective first gray levels during a first phase, and drives pixels of the first area with respective second gray levels and pixels of a second area outside the first area with respective third gray levels during a second phase. The respective second gray levels are higher than the respective first gray levels, and the respective third gray levels are lower than the respective second gray levels.

公开(公告)号：US20210056281A1

公开(公告)日：2021-02-25

申请号：US16921921

申请日：2020-07-06

Applicant: Novatek Microelectronics Corp.

Inventor： Wei-Lun Shih ,  Tzu-Wen Hsieh ,  Huan-Teng Cheng ,  Huang-Chin Tang ,  Yueh-Teng Mai ,  Shi-Hao Huang ,  Jung-Chung Lee

IPC: G06K9/00 ,  G09G5/10

Abstract: An electronic circuit for driving a panel including touch sensors and fingerprint sensors is provided. The electronic circuit includes a touch sensing circuit, a fingerprint sensing circuit and a display driving circuit. The touch sensing circuit senses a touch of a finger and determines a first area corresponding to the touch on the panel. The fingerprint sensing circuit senses a fingerprint image of the finger corresponding to the first area of the panel. The display driving circuit drives pixels over the panel with respective first gray levels during a first phase, and drives pixels of the first area with respective second gray levels and pixels of a second area outside the first area with respective third gray levels during a second phase. The respective second gray levels are higher than the respective first gray levels, and the respective third gray levels are lower than the respective second gray levels.