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公开(公告)号：US10984697B2
公开(公告)日：2021-04-20
申请号：US16748781
申请日：2020-01-21
Applicant: Novatek Microelectronics Corp.
Inventor： Tso-Hua Chien , Hung-Hsiang Chen , Huang-Chin Tang
IPC: G09G3/20
Abstract: This disclosure relates to techniques for a driving apparatus including a reordering circuit and a source driving circuit. The reordering circuit can be configured to reorder a plurality of sub-pixel data of an input data string to generate a reordered data string so as to reduce a color switching number associated with a target data line. The source driving circuit can be coupled to the reordering circuit to receive the reordered data string. The source driving circuit can be configured to drive the target data line of a display panel according to the reordered data string.
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公开(公告)号：US20210073504A1
公开(公告)日：2021-03-11
申请号：US17005325
申请日：2020-08-28
Applicant: Novatek Microelectronics Corp.
Inventor： Wei-Lun Shih , Wu-Wei Lin , Huang-Chin Tang , Ting-Hsuan Hung
Abstract: A chip, an electronic device, a panel and an operation method thereof are provided. The chip can control the panel to perform fingerprint sensing. Fingerprint sensing pixels of the panel are divided into a plurality of fingerprint zones along a column direction. The chip includes a selecting circuit and a control circuit. The selecting circuit obtains information about a selected fingerprint zone among the fingerprint zones. The control circuit provides multiple control signals for controlling the panel to perform fingerprint sensing. The control signals include multiple start pulse signals. The start pulse signals collectively indicate the selected fingerprint zone. The number of the fingerprint zones is greater than the number of the start pulse signals.
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23.发明申请公开(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：US10895933B2
公开(公告)日：2021-01-19
申请号：US16352844
申请日：2019-03-14
Applicant: Novatek Microelectronics Corp.
Inventor： Huan-Teng Cheng , Huang-Chin Tang
Abstract: A timing control circuit and an operation method thereof are provided. The timing control circuit includes a receiving circuit, a line memory, and a timing generating circuit. The receiving circuit receives a video packet stream from the outside and provides an external horizontal sync signal and a first data signal. The line memory temporarily stores the first data signal, and outputs a second data signal to a source driver according to an internal horizontal sync signal generated by the timing generating circuit. A video frame period of the second data signal includes a video display operation period and a touch detection period. A video display operation period is divided into a plurality of sub-periods. The timing generating circuit performs a synchronization operation in each of the sub-periods, so as to synchronize the timing of the internal horizontal sync signal with the timing of the external horizontal sync signal.
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25.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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Patent Agency Ranking
26.发明公开公开(公告)号：US20240161672A1
公开(公告)日：2024-05-16
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
CPC classification number: G09G3/20 , G06F3/0412 , G06V40/13 , G06V40/1318 , G09G2310/0272
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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27.发明授权公开(公告)号：US11935452B2
公开(公告)日：2024-03-19
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 , G06V40/13 , 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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公开(公告)号：US11749012B2
公开(公告)日：2023-09-05
申请号：US17886428
申请日：2022-08-11
Applicant: Novatek Microelectronics Corp.
Inventor： Wei-Lun Shih , Wu-Wei Lin , Huang-Chin Tang , Ting-Hsuan Hung
CPC classification number: G06V40/1306 , G06F3/0412 , G09G3/20 , G06F3/04166 , G09G2300/0408 , G09G2354/00
Abstract: A chip capable of controlling a panel to perform fingerprint sensing is provided. Fingerprint sensing pixels of the panel are divided into a plurality of fingerprint zones along a first direction. The chip includes a control circuit. The control circuit provides multiple control signals for controlling the panel to perform fingerprint sensing. The control signals include multiple start pulse signals. The start pulse signals are used to indicate the selected fingerprint zone. The number of the fingerprint zones is greater than the number of the start pulse signals.
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公开(公告)号：US11631373B1
公开(公告)日：2023-04-18
申请号：US17956820
申请日：2022-09-29
Applicant: NOVATEK Microelectronics Corp.
Inventor： Hung-Hsiang Chen , Che-Ching Chang , Huang-Chin Tang
IPC: G09G3/3266 , G09G3/3291
Abstract: A method of controlling a display panel includes steps of: detecting a plurality of lines of display data to generate a detection result; determining whether to apply a general timing or a compensation timing to each of the lines of display data according to the detection result; allocating a first display line period for a first line of display data determined to be applied with the general timing; outputting at least one control signal to the display panel in the first display line period according to a length of the first display line period; allocating a second display line period for a second line of display data determined to be applied with the compensation timing; and outputting the at least one control signal to the display panel in the second display line period according to a length of the second display line period different from the first display line period.
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公开(公告)号：US20220383654A1
公开(公告)日：2022-12-01
申请号：US17886428
申请日：2022-08-11
Applicant: Novatek Microelectronics Corp.
Inventor： Wei-Lun Shih , Wu-Wei Lin , Huang-Chin Tang , Ting-Hsuan Hung
Abstract: A chip capable of controlling a panel to perform fingerprint sensing is provided. Fingerprint sensing pixels of the panel are divided into a plurality of fingerprint zones along a first direction. The chip includes a control circuit. The control circuit provides multiple control signals for controlling the panel to perform fingerprint sensing. The control signals include multiple start pulse signals. The start pulse signals are used to indicate the selected fingerprint zone. The number of the fingerprint zones is greater than the number of the start pulse signals.
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