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公开(公告)号：US11747925B2
公开(公告)日：2023-09-05
申请号：US17003978
申请日：2020-08-26
Applicant: Novatek Microelectronics Corp.
Inventor： Feng-Jung Kuo , Jung-Chung Lee , Chiu-Huang Huang , Ting-Hsuan Hung
CPC classification number: G06F3/0412 , G06F3/0418 , G06V40/1318 , G09G3/3648 , G09G2310/0291 , G09G2310/08 , G09G2320/0673
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 and a switch circuit. The first circuit is configured to generate display driving signals for driving data lines of the display panel. The second circuit is configured to receive fingerprint sensing signals corresponding to a fingerprint image from fingerprint sensing lines of the display panel. The switch circuit includes a plurality of first terminals and a plurality of second terminals. The first terminals are coupled to the first circuit and the second circuit. The second terminals are configurable to be coupled to the display panel via a plurality of first pins of the electronic circuit. Each of the first pins is configurable to be coupled to a corresponding data line and a corresponding fingerprint sensing line of the display panel.
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公开(公告)号：US20210088823A1
公开(公告)日：2021-03-25
申请号：US16831819
申请日：2020-03-27
Applicant: Novatek Microelectronics Corp.
Inventor： Po-Chi Lin , Jung-Chung Lee
IPC: G02F1/1333 , G02F1/1335
Abstract: A fingerprint recognition apparatus with light-emitting sources disposed in medium layers between a display panel and a sensor is introduced. The display panel displays according to a first light signal. The fingerprint recognition apparatus comprises: a sensor sensing the fingerprint according to a second light signal; a first medium layer disposed between the display panel and the sensor including a first light-emitting source to emit the first light signal; and a second medium layer disposed between the first medium layer and the sensor including a second light-emitting source to emit the second light signal.
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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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4.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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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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Patent Agency Ranking
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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公开(公告)号：US20220165083A1
公开(公告)日：2022-05-26
申请号：US17530381
申请日：2021-11-18
Applicant: Novatek Microelectronics Corp.
Inventor： Po-Chi Lin , Chiu-Huang Huang , Jung-Chung Lee
Abstract: A fingerprint sensing apparatus includes a plurality of fingerprint sensors and a fingerprint readout circuit. The fingerprint sensors may be configured to operate in a fingerprint sensing cycle. The fingerprint readout circuit may be coupled to the plurality of fingerprint sensors via a plurality of sensing lines. The fingerprint readout circuit may be configured to control the fingerprint sensors to operate in the fingerprint sensing cycle. The fingerprint sensing cycle includes an initialization period, an exposure period and a readout period. A voltage of a reset node in each fingerprint sensor among the fingerprint sensors is reset to a first voltage in a reset period before the fingerprint sensing cycle starts. The voltage of the reset node in each fingerprint sensor is initialized to an initial voltage in the initialization period. The initial voltage is different from the first voltage.
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公开(公告)号：US20210072854A1
公开(公告)日：2021-03-11
申请号：US17003978
申请日：2020-08-26
Applicant: Novatek Microelectronics Corp.
Inventor： Feng-Jung Kuo , Jung-Chung Lee , Chiu-Huang Huang , Ting-Hsuan Hung
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 and a switch circuit. The first circuit is configured to generate display driving signals for driving data lines of the display panel. The second circuit is configured to receive fingerprint sensing signals corresponding to a fingerprint image from fingerprint sensing lines of the display panel. The switch circuit includes a plurality of first terminals and a plurality of second terminals. The first terminals are coupled to the first circuit and the second circuit. The second terminals are configurable to be coupled to the display panel via a plurality of first pins of the electronic circuit. Each of the first pins is configurable to be coupled to a corresponding data line and a corresponding fingerprint sensing line of the display panel.
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公开(公告)号：US11906713B2
公开(公告)日：2024-02-20
申请号：US16885302
申请日：2020-05-28
Applicant: NOVATEK Microelectronics Corp.
Inventor： Feng-Jung Kuo , Min Huang , Jung-Chung Lee , Chi-Ting Chen , Li-Yuan Chang , I-Hsiu Chen , Chin-Hui Huang
CPC classification number: G02B13/14 , G02B1/11 , G02B5/005 , G02B5/208 , G02B6/00 , G02B7/02 , G02B6/0001
Abstract: An optical fingerprint sensing module includes an image sensing device, a light source and a light shielding structure. The image sensing device is configured to sense light transmitted from a fingerprint of a finger on a display panel. The image sensing device includes a light sensing plane having a first geometric center. The light source includes a light emitting plane having a second geometric center. The first geometric center is separated from the second geometric center by a distance from 2 mm to 20 mm. The light shielding structure is disposed between the image sensing device and the light source. In examples, the optical fingerprint sensing module further includes a field angle controller to constrain light pass there through with a field angle of 5-60 degrees. A display device including an optical fingerprint sensing module is disclosed herein as well.
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公开(公告)号：US11715322B2
公开(公告)日：2023-08-01
申请号：US17530381
申请日：2021-11-18
Applicant: Novatek Microelectronics Corp.
Inventor： Po-Chi Lin , Chiu-Huang Huang , Jung-Chung Lee
CPC classification number: G06V40/1318 , G06F3/04184
Abstract: A fingerprint sensing apparatus includes a plurality of fingerprint sensors and a fingerprint readout circuit. The fingerprint sensors may be configured to operate in a fingerprint sensing cycle. The fingerprint readout circuit may be coupled to the plurality of fingerprint sensors via a plurality of sensing lines. The fingerprint readout circuit may be configured to control the fingerprint sensors to operate in the fingerprint sensing cycle. The fingerprint sensing cycle includes an initialization period, an exposure period and a readout period. A voltage of a reset node in each fingerprint sensor among the fingerprint sensors is reset to a first voltage in a reset period before the fingerprint sensing cycle starts. The voltage of the reset node in each fingerprint sensor is initialized to an initial voltage in the initialization period. The initial voltage is different from the first voltage.
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