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公开(公告)号：US11625939B2
公开(公告)日：2023-04-11
申请号：US16933952
申请日：2020-07-20
Applicant: Novatek Microelectronics Corp.
Inventor： Huan-Teng Cheng , Ting-Hsuan Hung , Tzu-Wen Hsieh , Wei-Lun Shih , Huang-Chin Tang
Abstract: An electronic circuit adapted to drive a display panel including touch sensors and fingerprint sensors is provided. The electronic circuit includes a first circuit, a second circuit, a first switch circuit and a control circuit. The first circuit generates display driving signals for driving the display panel. The second circuit receives fingerprint sensing signals from the fingerprint sensors. The first switch circuit is coupled to a second switch circuit on the display panel. The control circuit generates control signals for controlling the first switch circuit and the second switch circuit, so as to control the electronic circuit to transmit the display driving signals from the first circuit to the data lines through the first and the second switch circuits in a first time interval, and control the electronic circuit to receive the fingerprint sensing signals from the fingerprint sensors through the first and the second switch circuits in a second time interval.
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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
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.
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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
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.
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公开(公告)号：US12148238B2
公开(公告)日：2024-11-19
申请号：US18307027
申请日：2023-04-26
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: G06V40/13 , G06F3/041 , G06V40/60 , G09G3/3233 , G09G5/10
Abstract: An electronic circuit adapted to drive a display panel 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 display panel. The fingerprint sensing circuit senses a fingerprint image of the finger corresponding to the first area. The display driving circuit drives pixels of the first area with respective first gray levels and pixels of a second area outside the first area with respective second gray levels. The display driving circuit processes respective third gray levels to obtain the respective first gray levels or the respective second gray levels. The display driving circuit generates gamma voltages corresponding to the respective first gray levels and the respective second gray levels according to a same gamma curve.
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5.发明公开公开(公告)号：US20230267762A1
公开(公告)日：2023-08-24
申请号：US18307027
申请日：2023-04-26
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
CPC classification number: G06V40/1318 , G09G5/10 , G09G2320/0626 , G06F3/0416
Abstract: An electronic circuit adapted to drive a display panel 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 display panel. The fingerprint sensing circuit senses a fingerprint image of the finger corresponding to the first area. The display driving circuit drives pixels of the first area with respective first gray levels and pixels of a second area outside the first area with respective second gray levels. The display driving circuit processes respective third gray levels to obtain the respective first gray levels or the respective second gray levels. The display driving circuit generates gamma voltages corresponding to the respective first gray levels and the respective second gray levels according to a same gamma curve.
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Patent Agency Ranking
公开(公告)号：US20220130166A1
公开(公告)日：2022-04-28
申请号：US17567907
申请日：2022-01-04
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
Abstract: An electronic circuit adapted to drive a display panel is provided. The display panel includes touch sensors and fingerprint sensors. 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 display panel. The fingerprint sensing circuit senses a fingerprint image of the finger corresponding to the first area. The display driving circuit drives pixels of the first area with respective first gray levels and pixels of a second area outside the first area with respective second gray levels. The display driving circuit processes respective third gray levels to obtain the respective second gray levels. The display driving circuit generates gamma voltages corresponding to the respective first gray levels and the respective second gray levels according to the same gamma curve.
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公开(公告)号：US12008191B2
公开(公告)日：2024-06-11
申请号：US17037760
申请日：2020-09-30
Applicant: NOVATEK MICROELECTRONICS CORP.
Inventor： Tzu-Wen Hsieh , Weilun Shih , Ting-Hsuan Hung , Huang-Chin Tang
CPC classification number: G06F3/04164 , G06F3/0412 , G06F3/04166 , G06V40/1318 , G09G3/20
Abstract: A single-chip device for driving a panel including fingerprint sensing pixels, display pixels and touch sensors, electronic module therefor, and electronic apparatus including the single-chip device are provided. The single-chip device comprises a main body, a first group of pads and a second group of pads disposed in the main body. The main body has a left portion and a right portion with respect to an axis. The first group of pads comprise a plurality of first pads for driving the fingerprint sensing pixels, are disposed on both the left portion and the right portion and configured to be coupled to the fingerprint sensing pixels. The second group of pads comprise a plurality of second pads for driving the display pixels and the touch sensors, are disposed on both the left portion and the right portion and configured to be coupled to the panel.
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公开(公告)号：US11721123B2
公开(公告)日：2023-08-08
申请号：US17567907
申请日：2022-01-04
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
CPC classification number: G06V40/1318 , G09G5/10 , G06F3/0416 , G09G2320/0626
Abstract: An electronic circuit adapted to drive a display panel is provided. The display panel includes touch sensors and fingerprint sensors. 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 display panel. The fingerprint sensing circuit senses a fingerprint image of the finger corresponding to the first area. The display driving circuit drives pixels of the first area with respective first gray levels and pixels of a second area outside the first area with respective second gray levels. The display driving circuit processes respective third gray levels to obtain the respective second gray levels. The display driving circuit generates gamma voltages corresponding to the respective first gray levels and the respective second gray levels according to the same gamma curve.
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9.发明公开公开(公告)号：US20230196962A1
公开(公告)日：2023-06-22
申请号：US18170541
申请日：2023-02-17
Applicant: Novatek Microelectronics Corp.
Inventor： Huan-Teng Cheng , Ting-Hsuan Hung , Tzu-Wen Hsieh , Wei-Lun Shih , Huang-Chin Tang
CPC classification number: G09G3/20 , G06F3/0412 , G06V40/1318 , G09G2310/0272
Abstract: An electronic circuit for operating with a display panel including touch sensors and fingerprint sensors is provided. The electronic circuit includes a first circuit, a second circuit, a third circuit, a first switch circuit and a control circuit. The first circuit generates display driving signals for driving the display panel. The second circuit receives fingerprint sensing signals from the fingerprint sensors. The third circuit determines a touch information according to touch sensing signals from the touch sensors. The first switch circuit includes a plurality of first switch units, each of the first switch units includes a first switch element and a second switch element. The control circuit controls the first switch circuit to transmit the display driving signals in a first time interval, controls the first switch circuit to transmit the fingerprint sensing signals in a second time interval, and controls the third circuit to receive the fingerprint sensing signals in a third time interval.
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10.发明授权公开(公告)号：US12272283B2
公开(公告)日：2025-04-08
申请号：US18421930
申请日：2024-01-24
Applicant: Novatek Microelectronics Corp.
Inventor： Huan-Teng Cheng , Ting-Hsuan Hung , Tzu-Wen Hsieh , Wei-Lun Shih , Huang-Chin Tang
Abstract: An electronic circuit including a plurality of common terminals, a first circuit, a second circuit, and a plurality of switch units is provided. The first circuit is configured to output display driving signals to data lines of a display panel via the common terminals. The second circuit is configured to receive fingerprint sensing signals from fingerprint sensing lines of the display panel via the common terminals. Each of the switch units includes a first terminal coupled to one of the common terminals and a plurality of second terminals coupled to the first circuit and the second circuit. The switch units are grouped into a plurality of groups, and each group corresponds to a fingerprint sensing channel of the second circuit.
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