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公开(公告)号：US11106887B1
公开(公告)日：2021-08-31
申请号：US17143108
申请日：2021-01-06
Applicant: Novatek Microelectronics Corp.
Inventor： Huan-Teng Cheng , Yuan Heng Lu
IPC: G06K9/00
Abstract: An electronic circuit adapted to drive a display panel including a plurality of fingerprint sensing lines is provided. The electronic circuit includes a fingerprint sensing circuit. The fingerprint sensing circuit is configured to receive a fingerprint sensing signal corresponding to a fingerprint image from the fingerprint sensing lines. The fingerprint sensing signal includes a plurality of fingerprint image segments. The fingerprint sensing circuit rearranges the fingerprint image segments to generate the fingerprint image according to an order of the fingerprint sensing lines. In addition, a method for generating a fingerprint image is also provided.
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公开(公告)号：US10990219B2
公开(公告)日：2021-04-27
申请号：US16451021
申请日：2019-06-25
Applicant: Novatek Microelectronics Corp.
Inventor： Huan-Teng Cheng , Wen-Yi Hsieh , Huang-Chin Tang
Abstract: An integrated circuit and a touch display apparatus are provided. The integrated circuit is configured to drive a touch display panel. The integrated circuit includes a regulator. An output terminal of the regulator is employed as a first node to output a common voltage, wherein the common voltage is configured to be provided to at least one common electrode of the touch display panel. An input terminal of the regulator is coupled to a second node different from the first node to receive a feedback voltage.
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公开(公告)号：US20210056333A1
公开(公告)日：2021-02-25
申请号：US16851043
申请日：2020-04-16
Applicant: NOVATEK Microelectronics Corp.
Inventor： Huan-Teng Cheng , Wei-Lun Shih , Huang-Chin Tang
IPC: G06K9/00 , G06F3/041 , G06F3/0481 , G06F3/0488
Abstract: A control circuit configured to control a display panel includes a display driver circuit, a touch sensing circuit and a fingerprint sensing circuit. The touch sensing circuit, coupled to the display driver circuit and the fingerprint sensing circuit, is configured to detect a finger touch on the display panel, determine a position of the display panel on which the finger touch is detected, and send information associated with the position to the fingerprint sensing circuit. The fingerprint sensing circuit is configured to perform fingerprint sensing on at least one zone corresponding to the position and receive fingerprint image signals from the at least one zone correspondingly.
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24.发明申请公开(公告)号：US20210034189A1
公开(公告)日：2021-02-04
申请号：US16944157
申请日：2020-07-31
Applicant: Novatek Microelectronics Corp.
Inventor： Huan-Teng Cheng , Wei-Lun Shih , Huang-Chin Tang
Abstract: An electronic circuit is adapted to drive a display panel having touch sensors and fingerprint sensors. The electronic circuit includes a first circuit, a second circuit, a first switch circuit and a control circuit. The first circuit processes touch sensing signals from the touch sensors. The second circuit processes fingerprint sensing signals corresponding to a fingerprint from the fingerprint sensors. The first switch circuit includes a plurality of first terminals coupled to the first circuit and the second circuit and a plurality of second terminals configurable to be coupled to the display panel. The first switch circuit couples a part of the first terminals to the second terminals in a first time interval and couples the other part of the first terminals to the second terminals in a second time interval. The touch sensing signals and the fingerprint sensing signals are inputted to the electronic circuit through the second terminals.
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25.发明申请公开(公告)号：US20200210015A1
公开(公告)日：2020-07-02
申请号：US16237754
申请日：2019-01-02
Applicant: NOVATEK Microelectronics Corp.
Inventor： Huan-Teng Cheng , Huang-Chin Tang
Abstract: A method of controlling timing for a touch and display driver system includes the steps of: receiving an external signal; generating a plurality of time units each having a display period and a touch period; generating an internal signal for controlling a display operation in the display period; and synchronizing the internal signal with the external signal for a time unit among the plurality of time units at a time point different from at least one of the start of the time unit and the end of the time unit.
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Patent Agency Ranking
公开(公告)号：US20230316800A1
公开(公告)日：2023-10-05
申请号：US18321730
申请日：2023-05-22
Applicant: Novatek Microelectronics Corp.
Inventor： Huan-Teng Cheng , Ting-Hsuan Hung , Wei-Lun Shih , Huang-Chin Tang
CPC classification number: G06V40/13 , G06F3/0412 , G06V40/1318 , G09G3/20 , G09G2310/0272
Abstract: An imaging control circuit for collecting object image data for an object presented on a portion of a surface of a display panel is provided. The imaging control circuit includes a first circuit, a second circuit and a third circuit. The first circuit is adapted to receive touch sensing signals from a set of touch sensors located in the display panel. The second circuit is adapted to receive object image sensing signals from a set of imaging sensors. The object image sensing signals are associated with the object detected on the surface of the display panel. The third circuit is adapted to determine a location of the object from the touch sensing signals and generate a variable sized object imaging zone based on a location and a size of an object image. The variable sized object imaging zone includes a variable subset of the imaging sensors.
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公开(公告)号：US20230215332A1
公开(公告)日：2023-07-06
申请号：US18177758
申请日：2023-03-03
Applicant: Novatek Microelectronics Corp.
Inventor： Huan-Teng Cheng
IPC: G09G3/20
CPC classification number: G09G3/2092 , G09G2330/021 , G09G2340/0435 , G09G2370/08 , G09G2370/10 , G09G2310/0291 , G09G2310/0272 , G09G2350/00
Abstract: A receiver of a display driver and an operating method of the receiver of the display driver are provided. The receiver of the display driver includes an input interface, an operational amplifier and a bias current control circuit. The input interface receives image data. The operational amplifier is coupled to the input interface and includes a bias current circuit. The bias current control circuit adjusts a bias current of the bias current circuit according to a data rate of the image data. The operating method is adapted to the receiver of the display driver.
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28.发明授权公开(公告)号：US11694473B2
公开(公告)日：2023-07-04
申请号：US17149676
申请日：2021-01-14
Applicant: Novatek Microelectronics Corp.
Inventor： Huan-Teng Cheng , Yuan Heng Lu
CPC classification number: G06V40/1335 , G06F3/0412 , G06F3/04164
Abstract: An electronic circuit adapted to drive a display panel including touch sensors and fingerprint sensors is provided. The electronic circuit includes a switch circuit and a control circuit. The switch circuit includes a plurality of first switch elements and a plurality of second switch elements. The control circuit is configured to generate control signals for controlling the switch circuit, so as to control the electronic circuit to transmit the display driving signals from the first circuit to the data lines through a first part of the first switch elements in a first time interval, and control the electronic circuit to receive the fingerprint sensing signals from the fingerprint sensors of the display panel through the second switch elements in a second time interval.
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29.发明公开公开(公告)号：US20230177996A1
公开(公告)日：2023-06-08
申请号：US18163287
申请日：2023-02-02
Applicant: Novatek Microelectronics Corp.
Inventor： Huan-Teng Cheng , Ting-Hsuan Hung , Wei-Lun Shih , Huang-Chin Tang
CPC classification number: G09G3/20 , G06F3/0412 , G06V40/1318 , G09G2310/0272
Abstract: An electronic circuit includes a fingerprint sensing circuit that is configured to receive fingerprint sensing signals corresponding to a fingerprint image from fingerprint sensors via fingerprint sensing lines. The fingerprint sensing circuit is further configured to select a subset of the fingerprint sensing lines to form a fingerprint sensing zone having at least one boundary and adapted for a fingerprint sensing operation based on a fingerprint touch area. The subset of fingerprint sensing lines is selected based on the at least one boundary of the fingerprint sensing zone. The fingerprint sensing circuit is further configured to generate the fingerprint image according to the fingerprint sensing signals by a remapping operation.
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公开(公告)号：US20230066902A1
公开(公告)日：2023-03-02
申请号：US17881584
申请日：2022-08-04
Applicant: NOVATEK Microelectronics Corp.
Inventor： Huan-Teng Cheng
Abstract: A timing control circuit includes a receiving circuit and a line memory coupled to the receiving circuit. The line memory is configured for outputting a first data signal during a first frame period, and outputting a second data signal during a second frame period. An end time point of the first frame period coincides with the start time point of the second frame period. One of the first data signal and the second data signal is corresponding to a long H mode; the other of the first data signal and the second data signal is corresponding to a long V mode.
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