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21.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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22.发明申请公开(公告)号：US20210357615A1
公开(公告)日：2021-11-18
申请号：US17216705
申请日：2021-03-30
Applicant: Novatek Microelectronics Corp.
Inventor： Wei-Lun Shih , Wu Wei Lin , Ting-Hsuan Hung , Wen-Yi Hsieh
Abstract: In the invention, a fingerprint driving circuit, a fingerprint sensing device, an electronic apparatus, and an operation method of the fingerprint sensing device are provided. By keeping fingerprint sensing lines in a non-fingerprint sensing region in an electrically non-floating state, flash phenomenon in a display panel may be avoided.
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公开(公告)号：US20210256236A1
公开(公告)日：2021-08-19
申请号：US16790636
申请日：2020-02-13
Applicant: NOVATEK Microelectronics Corp.
Inventor： Hung-Kai Chen , Ting-Hsuan Hung , Chih-Yuan Chang , Feng-Lin Chan
IPC: G06K9/00
Abstract: A fingerprint detecting system comprises a fingerprint module, for detecting a fingerprint of a user and outputting a current signal according to the detected fingerprint, and a signal processing circuit, coupled to the fingerprint module, for receiving the current signal from the fingerprint module, performing a offset cancellation for the current signal to remove an offset of the current signal, and converting the current signal without the offset to a voltage signal for fingerprint data analysis.
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24.发明申请公开(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：US12032767B2
公开(公告)日：2024-07-09
申请号：US18199970
申请日：2023-05-21
Applicant: NOVATEK Microelectronics Corp.
Inventor： Wei-Lun Shih , Ting-Hsuan Hung
CPC classification number: G06F3/0412 , G06F3/0421 , G06F3/1407 , G06F2203/04106
Abstract: A panel device includes a touch sensor, a first light sensor and a second light sensor, a first trace, a second trace and a control circuit. The touch sensor is disposed in a first area of the panel device to generate a touch sensing signal. The first light sensor and the second light sensor are disposed in a second area of the panel device to sense ambient light and generate a first light sensing signal and a second light sensing signal. The first trace is coupled to the first light sensor. The second trace is coupled to the second light sensor. The control circuit connects the first trace and the second trace and receives the first light sensing signal and the second light sensing signal at the same time to determine an ambient brightness. Sensitivities of the first light sensor and the second light sensor are different.
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Patent Agency Ranking
26.发明授权公开(公告)号：US11854451B2
公开(公告)日：2023-12-26
申请号：US17553730
申请日：2021-12-16
Applicant: Novatek Microelectronics Corp.
Inventor： Huan-Teng Cheng , Ting-Hsuan Hung , Wei-Lun Shih , Huang-Chin Tang
CPC classification number: G09G3/20 , G06F3/0412 , G06V40/13 , G06V40/1318 , G09G2310/0272
Abstract: An electronic circuit adapted to process fingerprint data from a panel including touch sensors and fingerprint sensors is provided. The electronic circuit includes a first circuit, a second circuit and a control circuit. The first circuit is configured to receive touch sensing signals from the touch sensors. The second circuit is configured to receive fingerprint sensing signals corresponding to at least one fingerprint imprint from the fingerprint sensors via fingerprint sensing lines. The control circuit is configured to determine a fingerprint touch area according to the touch sensing signals, and select a subset of the fingerprint sensing lines to form a fingerprint sensing zone adapted for a fingerprint sensing operation and including at least one boundary based on the determined fingerprint touch area. The subset of fingerprint sensing lines is selected based on the at least one boundary of the fingerprint sensing zone. An electronic device and a method for sensing at least one fingerprint imprint from a panel are also provided.
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公开(公告)号：US20230376136A1
公开(公告)日：2023-11-23
申请号：US18199970
申请日：2023-05-21
Applicant: NOVATEK Microelectronics Corp.
Inventor： Wei-Lun Shih , Ting-Hsuan Hung
CPC classification number: G06F3/0412 , G06F3/0421 , G06F3/1407 , G06F2203/04106
Abstract: A panel device includes a touch sensor, a first light sensor and a second light sensor, a first trace, a second trace and a control circuit. The touch sensor is disposed in a first area of the panel device to generate a touch sensing signal. The first light sensor and the second light sensor are disposed in a second area of the panel device to sense ambient light and generate a first light sensing signal and a second light sensing signal. The first trace is coupled to the first light sensor. The second trace is coupled to the second light sensor. The control circuit connects the first trace and the second trace and receives the first light sensing signal and the second light sensing signal at the same time to determine an ambient brightness. Sensitivities of the first light sensor and the second light sensor are different.
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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
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.
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29.发明授权公开(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：US11709565B2
公开(公告)日：2023-07-25
申请号：US17558611
申请日：2021-12-22
Applicant: Novatek Microelectronics Corp.
Inventor： Yu-Hsien Lee , Ting-Hsuan Hung , Feng-Lin Chan , Wu Wei Lin
CPC classification number: G06F3/04166 , G06F3/0412 , G06F3/04164 , G06V40/13
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 plurality of fingerprint sensors is reset to a first voltage in a reset period after the fingerprint sensing cycle ends. 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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